Parameters and Values

Parameters and Values — Standard Parameter and Value Types

Functions

#define G_IS_PARAM_SPEC_BOOLEAN()
#define G_PARAM_SPEC_BOOLEAN()
#define G_VALUE_HOLDS_BOOLEAN()
GParamSpec * g_param_spec_boolean ()
void g_value_set_boolean ()
gboolean g_value_get_boolean ()
#define G_IS_PARAM_SPEC_CHAR()
#define G_PARAM_SPEC_CHAR()
#define G_VALUE_HOLDS_CHAR()
GParamSpec * g_param_spec_char ()
void g_value_set_char ()
gchar g_value_get_char ()
gint8 g_value_get_schar ()
void g_value_set_schar ()
#define G_IS_PARAM_SPEC_UCHAR()
#define G_PARAM_SPEC_UCHAR()
#define G_VALUE_HOLDS_UCHAR()
GParamSpec * g_param_spec_uchar ()
void g_value_set_uchar ()
guchar g_value_get_uchar ()
#define G_IS_PARAM_SPEC_INT()
#define G_PARAM_SPEC_INT()
#define G_VALUE_HOLDS_INT()
GParamSpec * g_param_spec_int ()
void g_value_set_int ()
gint g_value_get_int ()
#define G_IS_PARAM_SPEC_UINT()
#define G_PARAM_SPEC_UINT()
#define G_VALUE_HOLDS_UINT()
GParamSpec * g_param_spec_uint ()
void g_value_set_uint ()
guint g_value_get_uint ()
#define G_IS_PARAM_SPEC_LONG()
#define G_PARAM_SPEC_LONG()
#define G_VALUE_HOLDS_LONG()
GParamSpec * g_param_spec_long ()
void g_value_set_long ()
glong g_value_get_long ()
#define G_IS_PARAM_SPEC_ULONG()
#define G_PARAM_SPEC_ULONG()
#define G_VALUE_HOLDS_ULONG()
GParamSpec * g_param_spec_ulong ()
void g_value_set_ulong ()
gulong g_value_get_ulong ()
#define G_IS_PARAM_SPEC_INT64()
#define G_PARAM_SPEC_INT64()
#define G_VALUE_HOLDS_INT64()
GParamSpec * g_param_spec_int64 ()
void g_value_set_int64 ()
gint64 g_value_get_int64 ()
#define G_IS_PARAM_SPEC_UINT64()
#define G_PARAM_SPEC_UINT64()
#define G_VALUE_HOLDS_UINT64()
GParamSpec * g_param_spec_uint64 ()
void g_value_set_uint64 ()
guint64 g_value_get_uint64 ()
#define G_IS_PARAM_SPEC_FLOAT()
#define G_PARAM_SPEC_FLOAT()
#define G_VALUE_HOLDS_FLOAT()
GParamSpec * g_param_spec_float ()
void g_value_set_float ()
gfloat g_value_get_float ()
#define G_IS_PARAM_SPEC_DOUBLE()
#define G_PARAM_SPEC_DOUBLE()
#define G_VALUE_HOLDS_DOUBLE()
GParamSpec * g_param_spec_double ()
void g_value_set_double ()
gdouble g_value_get_double ()
#define G_IS_PARAM_SPEC_ENUM()
#define G_PARAM_SPEC_ENUM()
#define G_VALUE_HOLDS_ENUM()
GParamSpec * g_param_spec_enum ()
void g_value_set_enum ()
gint g_value_get_enum ()
#define G_IS_PARAM_SPEC_FLAGS()
#define G_PARAM_SPEC_FLAGS()
#define G_VALUE_HOLDS_FLAGS()
GParamSpec * g_param_spec_flags ()
void g_value_set_flags ()
guint g_value_get_flags ()
#define G_IS_PARAM_SPEC_STRING()
#define G_PARAM_SPEC_STRING()
#define G_VALUE_HOLDS_STRING()
GParamSpec * g_param_spec_string ()
void g_value_set_string ()
void g_value_set_static_string ()
void g_value_take_string ()
void g_value_set_string_take_ownership ()
const gchar * g_value_get_string ()
gchar * g_value_dup_string ()
#define G_IS_PARAM_SPEC_PARAM()
#define G_PARAM_SPEC_PARAM()
#define G_VALUE_HOLDS_PARAM()
GParamSpec * g_param_spec_param ()
void g_value_set_param ()
void g_value_take_param ()
void g_value_set_param_take_ownership ()
GParamSpec * g_value_get_param ()
GParamSpec * g_value_dup_param ()
#define G_IS_PARAM_SPEC_BOXED()
#define G_PARAM_SPEC_BOXED()
#define G_VALUE_HOLDS_BOXED()
GParamSpec * g_param_spec_boxed ()
void g_value_set_boxed ()
void g_value_set_static_boxed ()
void g_value_take_boxed ()
void g_value_set_boxed_take_ownership ()
gpointer g_value_get_boxed ()
gpointer g_value_dup_boxed ()
#define G_IS_PARAM_SPEC_POINTER()
#define G_PARAM_SPEC_POINTER()
#define G_VALUE_HOLDS_POINTER()
GParamSpec * g_param_spec_pointer ()
void g_value_set_pointer ()
gpointer g_value_get_pointer ()
#define G_IS_PARAM_SPEC_OBJECT()
#define G_PARAM_SPEC_OBJECT()
#define G_VALUE_HOLDS_OBJECT()
GParamSpec * g_param_spec_object ()
void g_value_set_object ()
void g_value_take_object ()
void g_value_set_object_take_ownership ()
gpointer g_value_get_object ()
gpointer g_value_dup_object ()
#define G_IS_PARAM_SPEC_UNICHAR()
#define G_PARAM_SPEC_UNICHAR()
GParamSpec * g_param_spec_unichar ()
#define G_IS_PARAM_SPEC_VALUE_ARRAY()
#define G_PARAM_SPEC_VALUE_ARRAY()
GParamSpec * g_param_spec_value_array ()
#define G_IS_PARAM_SPEC_OVERRIDE()
#define G_PARAM_SPEC_OVERRIDE()
GParamSpec * g_param_spec_override ()
#define G_IS_PARAM_SPEC_GTYPE()
#define G_PARAM_SPEC_GTYPE()
#define G_VALUE_HOLDS_GTYPE()
GParamSpec * g_param_spec_gtype ()
GType g_value_get_gtype ()
void g_value_set_gtype ()
#define G_IS_PARAM_SPEC_VARIANT()
#define G_PARAM_SPEC_VARIANT()
#define G_VALUE_HOLDS_VARIANT()
#define G_TYPE_PARAM_VARIANT
GParamSpec * g_param_spec_variant ()
GVariant * g_value_get_variant ()
GVariant * g_value_dup_variant ()
void g_value_set_variant ()
void g_value_take_variant ()

Includes

#include <glib-object.h>

Description

GValue provides an abstract container structure which can be copied, transformed and compared while holding a value of any (derived) type, which is registered as a GType with a GTypeValueTable in its GTypeInfo structure. Parameter specifications for most value types can be created as GParamSpec derived instances, to implement e.g. GObject properties which operate on GValue containers.

Parameter names need to start with a letter (a-z or A-Z). Subsequent characters can be letters, numbers or a '-'. All other characters are replaced by a '-' during construction.

Functions

G_IS_PARAM_SPEC_BOOLEAN()

#define G_IS_PARAM_SPEC_BOOLEAN(pspec)     (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_BOOLEAN))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_BOOLEAN.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_BOOLEAN()

#define G_PARAM_SPEC_BOOLEAN(pspec)        (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_BOOLEAN, GParamSpecBoolean))

Cast a GParamSpec instance into a GParamSpecBoolean.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_BOOLEAN()

#define G_VALUE_HOLDS_BOOLEAN(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_BOOLEAN))

Checks whether the given GValue can hold values of type G_TYPE_BOOLEAN.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_boolean ()

GParamSpec *
g_param_spec_boolean (const gchar *name,
                      const gchar *nick,
                      const gchar *blurb,
                      gboolean default_value,
                      GParamFlags flags);

Creates a new GParamSpecBoolean instance specifying a G_TYPE_BOOLEAN property. In many cases, it may be more appropriate to use an enum with g_param_spec_enum(), both to improve code clarity by using explicitly named values, and to allow for more values to be added in future without breaking API.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_boolean ()

void
g_value_set_boolean (GValue *value,
                     gboolean v_boolean);

Set the contents of a G_TYPE_BOOLEAN GValue to v_boolean .

Parameters

value

a valid GValue of type G_TYPE_BOOLEAN

 

v_boolean

boolean value to be set

 

g_value_get_boolean ()

gboolean
g_value_get_boolean (const GValue *value);

Get the contents of a G_TYPE_BOOLEAN GValue.

Parameters

value

a valid GValue of type G_TYPE_BOOLEAN

 

Returns

boolean contents of value


G_IS_PARAM_SPEC_CHAR()

#define G_IS_PARAM_SPEC_CHAR(pspec)        (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_CHAR))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_CHAR.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_CHAR()

#define G_PARAM_SPEC_CHAR(pspec)           (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_CHAR, GParamSpecChar))

Cast a GParamSpec instance into a GParamSpecChar.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_CHAR()

#define G_VALUE_HOLDS_CHAR(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_CHAR))

Checks whether the given GValue can hold values of type G_TYPE_CHAR.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_char ()

GParamSpec *
g_param_spec_char (const gchar *name,
                   const gchar *nick,
                   const gchar *blurb,
                   gint8 minimum,
                   gint8 maximum,
                   gint8 default_value,
                   GParamFlags flags);

Creates a new GParamSpecChar instance specifying a G_TYPE_CHAR property.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_char ()

void
g_value_set_char (GValue *value,
                  gchar v_char);

g_value_set_char has been deprecated since version 2.32 and should not be used in newly-written code.

This function's input type is broken, see g_value_set_schar()

Set the contents of a G_TYPE_CHAR GValue to v_char .

Parameters

value

a valid GValue of type G_TYPE_CHAR

 

v_char

character value to be set

 

g_value_get_char ()

gchar
g_value_get_char (const GValue *value);

g_value_get_char has been deprecated since version 2.32 and should not be used in newly-written code.

This function's return type is broken, see g_value_get_schar()

Do not use this function; it is broken on platforms where the char type is unsigned, such as ARM and PowerPC. See g_value_get_schar().

Get the contents of a G_TYPE_CHAR GValue.

Parameters

value

a valid GValue of type G_TYPE_CHAR

 

Returns

character contents of value


g_value_get_schar ()

gint8
g_value_get_schar (const GValue *value);

Get the contents of a G_TYPE_CHAR GValue.

Parameters

value

a valid GValue of type G_TYPE_CHAR

 

Returns

signed 8 bit integer contents of value

Since: 2.32


g_value_set_schar ()

void
g_value_set_schar (GValue *value,
                   gint8 v_char);

Set the contents of a G_TYPE_CHAR GValue to v_char .

Parameters

value

a valid GValue of type G_TYPE_CHAR

 

v_char

signed 8 bit integer to be set

 

Since: 2.32


G_IS_PARAM_SPEC_UCHAR()

#define G_IS_PARAM_SPEC_UCHAR(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_UCHAR))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_UCHAR.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_UCHAR()

#define G_PARAM_SPEC_UCHAR(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_UCHAR, GParamSpecUChar))

Cast a GParamSpec instance into a GParamSpecUChar.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_UCHAR()

#define G_VALUE_HOLDS_UCHAR(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_UCHAR))

Checks whether the given GValue can hold values of type G_TYPE_UCHAR.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_uchar ()

GParamSpec *
g_param_spec_uchar (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    guint8 minimum,
                    guint8 maximum,
                    guint8 default_value,
                    GParamFlags flags);

Creates a new GParamSpecUChar instance specifying a G_TYPE_UCHAR property.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_uchar ()

void
g_value_set_uchar (GValue *value,
                   guchar v_uchar);

Set the contents of a G_TYPE_UCHAR GValue to v_uchar .

Parameters

value

a valid GValue of type G_TYPE_UCHAR

 

v_uchar

unsigned character value to be set

 

g_value_get_uchar ()

guchar
g_value_get_uchar (const GValue *value);

Get the contents of a G_TYPE_UCHAR GValue.

Parameters

value

a valid GValue of type G_TYPE_UCHAR

 

Returns

unsigned character contents of value


G_IS_PARAM_SPEC_INT()

#define G_IS_PARAM_SPEC_INT(pspec)         (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_INT))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_INT.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_INT()

#define G_PARAM_SPEC_INT(pspec)            (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_INT, GParamSpecInt))

Cast a GParamSpec instance into a GParamSpecInt.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_INT()

#define G_VALUE_HOLDS_INT(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_INT))

Checks whether the given GValue can hold values of type G_TYPE_INT.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_int ()

GParamSpec *
g_param_spec_int (const gchar *name,
                  const gchar *nick,
                  const gchar *blurb,
                  gint minimum,
                  gint maximum,
                  gint default_value,
                  GParamFlags flags);

Creates a new GParamSpecInt instance specifying a G_TYPE_INT property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_int ()

void
g_value_set_int (GValue *value,
                 gint v_int);

Set the contents of a G_TYPE_INT GValue to v_int .

Parameters

value

a valid GValue of type G_TYPE_INT

 

v_int

integer value to be set

 

g_value_get_int ()

gint
g_value_get_int (const GValue *value);

Get the contents of a G_TYPE_INT GValue.

Parameters

value

a valid GValue of type G_TYPE_INT

 

Returns

integer contents of value


G_IS_PARAM_SPEC_UINT()

#define G_IS_PARAM_SPEC_UINT(pspec)        (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_UINT))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_UINT.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_UINT()

#define G_PARAM_SPEC_UINT(pspec)           (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_UINT, GParamSpecUInt))

Cast a GParamSpec instance into a GParamSpecUInt.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_UINT()

#define G_VALUE_HOLDS_UINT(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_UINT))

Checks whether the given GValue can hold values of type G_TYPE_UINT.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_uint ()

GParamSpec *
g_param_spec_uint (const gchar *name,
                   const gchar *nick,
                   const gchar *blurb,
                   guint minimum,
                   guint maximum,
                   guint default_value,
                   GParamFlags flags);

Creates a new GParamSpecUInt instance specifying a G_TYPE_UINT property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_uint ()

void
g_value_set_uint (GValue *value,
                  guint v_uint);

Set the contents of a G_TYPE_UINT GValue to v_uint .

Parameters

value

a valid GValue of type G_TYPE_UINT

 

v_uint

unsigned integer value to be set

 

g_value_get_uint ()

guint
g_value_get_uint (const GValue *value);

Get the contents of a G_TYPE_UINT GValue.

Parameters

value

a valid GValue of type G_TYPE_UINT

 

Returns

unsigned integer contents of value


G_IS_PARAM_SPEC_LONG()

#define G_IS_PARAM_SPEC_LONG(pspec)        (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_LONG))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_LONG.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_LONG()

#define G_PARAM_SPEC_LONG(pspec)           (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_LONG, GParamSpecLong))

Cast a GParamSpec instance into a GParamSpecLong.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_LONG()

#define G_VALUE_HOLDS_LONG(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_LONG))

Checks whether the given GValue can hold values of type G_TYPE_LONG.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_long ()

GParamSpec *
g_param_spec_long (const gchar *name,
                   const gchar *nick,
                   const gchar *blurb,
                   glong minimum,
                   glong maximum,
                   glong default_value,
                   GParamFlags flags);

Creates a new GParamSpecLong instance specifying a G_TYPE_LONG property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_long ()

void
g_value_set_long (GValue *value,
                  glong v_long);

Set the contents of a G_TYPE_LONG GValue to v_long .

Parameters

value

a valid GValue of type G_TYPE_LONG

 

v_long

long integer value to be set

 

g_value_get_long ()

glong
g_value_get_long (const GValue *value);

Get the contents of a G_TYPE_LONG GValue.

Parameters

value

a valid GValue of type G_TYPE_LONG

 

Returns

long integer contents of value


G_IS_PARAM_SPEC_ULONG()

#define G_IS_PARAM_SPEC_ULONG(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_ULONG))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_ULONG.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_ULONG()

#define G_PARAM_SPEC_ULONG(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_ULONG, GParamSpecULong))

Cast a GParamSpec instance into a GParamSpecULong.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_ULONG()

#define G_VALUE_HOLDS_ULONG(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_ULONG))

Checks whether the given GValue can hold values of type G_TYPE_ULONG.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_ulong ()

GParamSpec *
g_param_spec_ulong (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    gulong minimum,
                    gulong maximum,
                    gulong default_value,
                    GParamFlags flags);

Creates a new GParamSpecULong instance specifying a G_TYPE_ULONG property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_ulong ()

void
g_value_set_ulong (GValue *value,
                   gulong v_ulong);

Set the contents of a G_TYPE_ULONG GValue to v_ulong .

Parameters

value

a valid GValue of type G_TYPE_ULONG

 

v_ulong

unsigned long integer value to be set

 

g_value_get_ulong ()

gulong
g_value_get_ulong (const GValue *value);

Get the contents of a G_TYPE_ULONG GValue.

Parameters

value

a valid GValue of type G_TYPE_ULONG

 

Returns

unsigned long integer contents of value


G_IS_PARAM_SPEC_INT64()

#define G_IS_PARAM_SPEC_INT64(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_INT64))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_INT64.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_INT64()

#define G_PARAM_SPEC_INT64(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_INT64, GParamSpecInt64))

Cast a GParamSpec instance into a GParamSpecInt64.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_INT64()

#define G_VALUE_HOLDS_INT64(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_INT64))

Checks whether the given GValue can hold values of type G_TYPE_INT64.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_int64 ()

GParamSpec *
g_param_spec_int64 (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    gint64 minimum,
                    gint64 maximum,
                    gint64 default_value,
                    GParamFlags flags);

Creates a new GParamSpecInt64 instance specifying a G_TYPE_INT64 property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_int64 ()

void
g_value_set_int64 (GValue *value,
                   gint64 v_int64);

Set the contents of a G_TYPE_INT64 GValue to v_int64 .

Parameters

value

a valid GValue of type G_TYPE_INT64

 

v_int64

64bit integer value to be set

 

g_value_get_int64 ()

gint64
g_value_get_int64 (const GValue *value);

Get the contents of a G_TYPE_INT64 GValue.

Parameters

value

a valid GValue of type G_TYPE_INT64

 

Returns

64bit integer contents of value


G_IS_PARAM_SPEC_UINT64()

#define G_IS_PARAM_SPEC_UINT64(pspec)      (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_UINT64))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_UINT64.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_UINT64()

#define G_PARAM_SPEC_UINT64(pspec)         (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_UINT64, GParamSpecUInt64))

Cast a GParamSpec instance into a GParamSpecUInt64.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_UINT64()

#define G_VALUE_HOLDS_UINT64(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_UINT64))

Checks whether the given GValue can hold values of type G_TYPE_UINT64.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_uint64 ()

GParamSpec *
g_param_spec_uint64 (const gchar *name,
                     const gchar *nick,
                     const gchar *blurb,
                     guint64 minimum,
                     guint64 maximum,
                     guint64 default_value,
                     GParamFlags flags);

Creates a new GParamSpecUInt64 instance specifying a G_TYPE_UINT64 property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_uint64 ()

void
g_value_set_uint64 (GValue *value,
                    guint64 v_uint64);

Set the contents of a G_TYPE_UINT64 GValue to v_uint64 .

Parameters

value

a valid GValue of type G_TYPE_UINT64

 

v_uint64

unsigned 64bit integer value to be set

 

g_value_get_uint64 ()

guint64
g_value_get_uint64 (const GValue *value);

Get the contents of a G_TYPE_UINT64 GValue.

Parameters

value

a valid GValue of type G_TYPE_UINT64

 

Returns

unsigned 64bit integer contents of value


G_IS_PARAM_SPEC_FLOAT()

#define G_IS_PARAM_SPEC_FLOAT(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_FLOAT))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_FLOAT.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_FLOAT()

#define G_PARAM_SPEC_FLOAT(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_FLOAT, GParamSpecFloat))

Cast a GParamSpec instance into a GParamSpecFloat.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_FLOAT()

#define G_VALUE_HOLDS_FLOAT(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_FLOAT))

Checks whether the given GValue can hold values of type G_TYPE_FLOAT.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_float ()

GParamSpec *
g_param_spec_float (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    gfloat minimum,
                    gfloat maximum,
                    gfloat default_value,
                    GParamFlags flags);

Creates a new GParamSpecFloat instance specifying a G_TYPE_FLOAT property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_float ()

void
g_value_set_float (GValue *value,
                   gfloat v_float);

Set the contents of a G_TYPE_FLOAT GValue to v_float .

Parameters

value

a valid GValue of type G_TYPE_FLOAT

 

v_float

float value to be set

 

g_value_get_float ()

gfloat
g_value_get_float (const GValue *value);

Get the contents of a G_TYPE_FLOAT GValue.

Parameters

value

a valid GValue of type G_TYPE_FLOAT

 

Returns

float contents of value


G_IS_PARAM_SPEC_DOUBLE()

#define G_IS_PARAM_SPEC_DOUBLE(pspec)      (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_DOUBLE))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_DOUBLE.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_DOUBLE()

#define G_PARAM_SPEC_DOUBLE(pspec)         (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_DOUBLE, GParamSpecDouble))

Cast a GParamSpec instance into a GParamSpecDouble.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_DOUBLE()

#define G_VALUE_HOLDS_DOUBLE(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_DOUBLE))

Checks whether the given GValue can hold values of type G_TYPE_DOUBLE.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_double ()

GParamSpec *
g_param_spec_double (const gchar *name,
                     const gchar *nick,
                     const gchar *blurb,
                     gdouble minimum,
                     gdouble maximum,
                     gdouble default_value,
                     GParamFlags flags);

Creates a new GParamSpecDouble instance specifying a G_TYPE_DOUBLE property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

minimum

minimum value for the property specified

 

maximum

maximum value for the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_double ()

void
g_value_set_double (GValue *value,
                    gdouble v_double);

Set the contents of a G_TYPE_DOUBLE GValue to v_double .

Parameters

value

a valid GValue of type G_TYPE_DOUBLE

 

v_double

double value to be set

 

g_value_get_double ()

gdouble
g_value_get_double (const GValue *value);

Get the contents of a G_TYPE_DOUBLE GValue.

Parameters

value

a valid GValue of type G_TYPE_DOUBLE

 

Returns

double contents of value


G_IS_PARAM_SPEC_ENUM()

#define G_IS_PARAM_SPEC_ENUM(pspec)        (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_ENUM))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_ENUM.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_ENUM()

#define G_PARAM_SPEC_ENUM(pspec)           (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_ENUM, GParamSpecEnum))

Cast a GParamSpec instance into a GParamSpecEnum.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_ENUM()

#define G_VALUE_HOLDS_ENUM(value)      (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_ENUM))

Checks whether the given GValue can hold values derived from type G_TYPE_ENUM.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_enum ()

GParamSpec *
g_param_spec_enum (const gchar *name,
                   const gchar *nick,
                   const gchar *blurb,
                   GType enum_type,
                   gint default_value,
                   GParamFlags flags);

Creates a new GParamSpecEnum instance specifying a G_TYPE_ENUM property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

enum_type

a GType derived from G_TYPE_ENUM

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_enum ()

void
g_value_set_enum (GValue *value,
                  gint v_enum);

Set the contents of a G_TYPE_ENUM GValue to v_enum .

Parameters

value

a valid GValue whose type is derived from G_TYPE_ENUM

 

v_enum

enum value to be set

 

g_value_get_enum ()

gint
g_value_get_enum (const GValue *value);

Get the contents of a G_TYPE_ENUM GValue.

Parameters

value

a valid GValue whose type is derived from G_TYPE_ENUM

 

Returns

enum contents of value


G_IS_PARAM_SPEC_FLAGS()

#define G_IS_PARAM_SPEC_FLAGS(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_FLAGS))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_FLAGS.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_FLAGS()

#define G_PARAM_SPEC_FLAGS(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_FLAGS, GParamSpecFlags))

Cast a GParamSpec instance into a GParamSpecFlags.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_FLAGS()

#define G_VALUE_HOLDS_FLAGS(value)     (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_FLAGS))

Checks whether the given GValue can hold values derived from type G_TYPE_FLAGS.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_flags ()

GParamSpec *
g_param_spec_flags (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    GType flags_type,
                    guint default_value,
                    GParamFlags flags);

Creates a new GParamSpecFlags instance specifying a G_TYPE_FLAGS property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

flags_type

a GType derived from G_TYPE_FLAGS

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_flags ()

void
g_value_set_flags (GValue *value,
                   guint v_flags);

Set the contents of a G_TYPE_FLAGS GValue to v_flags .

Parameters

value

a valid GValue whose type is derived from G_TYPE_FLAGS

 

v_flags

flags value to be set

 

g_value_get_flags ()

guint
g_value_get_flags (const GValue *value);

Get the contents of a G_TYPE_FLAGS GValue.

Parameters

value

a valid GValue whose type is derived from G_TYPE_FLAGS

 

Returns

flags contents of value


G_IS_PARAM_SPEC_STRING()

#define G_IS_PARAM_SPEC_STRING(pspec)      (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_STRING))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_STRING.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_STRING()

#define G_PARAM_SPEC_STRING(pspec)         (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_STRING, GParamSpecString))

Casts a GParamSpec instance into a GParamSpecString.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_STRING()

#define G_VALUE_HOLDS_STRING(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_STRING))

Checks whether the given GValue can hold values of type G_TYPE_STRING.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_string ()

GParamSpec *
g_param_spec_string (const gchar *name,
                     const gchar *nick,
                     const gchar *blurb,
                     const gchar *default_value,
                     GParamFlags flags);

Creates a new GParamSpecString instance.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

default_value

default value for the property specified.

[nullable]

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_string ()

void
g_value_set_string (GValue *value,
                    const gchar *v_string);

Set the contents of a G_TYPE_STRING GValue to v_string .

Parameters

value

a valid GValue of type G_TYPE_STRING

 

v_string

caller-owned string to be duplicated for the GValue.

[allow-none]

g_value_set_static_string ()

void
g_value_set_static_string (GValue *value,
                           const gchar *v_string);

Set the contents of a G_TYPE_STRING GValue to v_string . The string is assumed to be static, and is thus not duplicated when setting the GValue.

Parameters

value

a valid GValue of type G_TYPE_STRING

 

v_string

static string to be set.

[allow-none]

g_value_take_string ()

void
g_value_take_string (GValue *value,
                     gchar *v_string);

Sets the contents of a G_TYPE_STRING GValue to v_string .

Parameters

value

a valid GValue of type G_TYPE_STRING

 

v_string

string to take ownership of.

[allow-none]

Since: 2.4


g_value_set_string_take_ownership ()

void
g_value_set_string_take_ownership (GValue *value,
                                   gchar *v_string);

g_value_set_string_take_ownership has been deprecated since version 2.4 and should not be used in newly-written code.

Use g_value_take_string() instead.

This is an internal function introduced mainly for C marshallers.

Parameters

value

a valid GValue of type G_TYPE_STRING

 

v_string

duplicated unowned string to be set.

[allow-none]

g_value_get_string ()

const gchar *
g_value_get_string (const GValue *value);

Get the contents of a G_TYPE_STRING GValue.

Parameters

value

a valid GValue of type G_TYPE_STRING

 

Returns

string content of value


g_value_dup_string ()

gchar *
g_value_dup_string (const GValue *value);

Get a copy the contents of a G_TYPE_STRING GValue.

Parameters

value

a valid GValue of type G_TYPE_STRING

 

Returns

a newly allocated copy of the string content of value


G_IS_PARAM_SPEC_PARAM()

#define G_IS_PARAM_SPEC_PARAM(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_PARAM))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_PARAM.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_PARAM()

#define G_PARAM_SPEC_PARAM(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_PARAM, GParamSpecParam))

Casts a GParamSpec instance into a GParamSpecParam.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_PARAM()

#define G_VALUE_HOLDS_PARAM(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_PARAM))

Checks whether the given GValue can hold values derived from type G_TYPE_PARAM.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_param ()

GParamSpec *
g_param_spec_param (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    GType param_type,
                    GParamFlags flags);

Creates a new GParamSpecParam instance specifying a G_TYPE_PARAM property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

param_type

a GType derived from G_TYPE_PARAM

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_param ()

void
g_value_set_param (GValue *value,
                   GParamSpec *param);

Set the contents of a G_TYPE_PARAM GValue to param .

Parameters

value

a valid GValue of type G_TYPE_PARAM

 

param

the GParamSpec to be set.

[allow-none]

g_value_take_param ()

void
g_value_take_param (GValue *value,
                    GParamSpec *param);

Sets the contents of a G_TYPE_PARAM GValue to param and takes over the ownership of the callers reference to param ; the caller doesn't have to unref it any more.

[skip]

Parameters

value

a valid GValue of type G_TYPE_PARAM

 

param

the GParamSpec to be set.

[allow-none]

Since: 2.4


g_value_set_param_take_ownership ()

void
g_value_set_param_take_ownership (GValue *value,
                                  GParamSpec *param);

g_value_set_param_take_ownership has been deprecated since version 2.4 and should not be used in newly-written code.

Use g_value_take_param() instead.

This is an internal function introduced mainly for C marshallers.

[skip]

Parameters

value

a valid GValue of type G_TYPE_PARAM

 

param

the GParamSpec to be set.

[allow-none]

g_value_get_param ()

GParamSpec *
g_value_get_param (const GValue *value);

Get the contents of a G_TYPE_PARAM GValue.

Parameters

value

a valid GValue whose type is derived from G_TYPE_PARAM

 

Returns

GParamSpec content of value .

[transfer none]


g_value_dup_param ()

GParamSpec *
g_value_dup_param (const GValue *value);

Get the contents of a G_TYPE_PARAM GValue, increasing its reference count.

[skip]

Parameters

value

a valid GValue whose type is derived from G_TYPE_PARAM

 

Returns

GParamSpec content of value , should be unreferenced when no longer needed.


G_IS_PARAM_SPEC_BOXED()

#define G_IS_PARAM_SPEC_BOXED(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_BOXED))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_BOXED.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_BOXED()

#define G_PARAM_SPEC_BOXED(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_BOXED, GParamSpecBoxed))

Cast a GParamSpec instance into a GParamSpecBoxed.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_BOXED()

#define G_VALUE_HOLDS_BOXED(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_BOXED))

Checks whether the given GValue can hold values derived from type G_TYPE_BOXED.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_boxed ()

GParamSpec *
g_param_spec_boxed (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    GType boxed_type,
                    GParamFlags flags);

Creates a new GParamSpecBoxed instance specifying a G_TYPE_BOXED derived property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

boxed_type

G_TYPE_BOXED derived type of this property

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_boxed ()

void
g_value_set_boxed (GValue *value,
                   gconstpointer v_boxed);

Set the contents of a G_TYPE_BOXED derived GValue to v_boxed .

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

v_boxed

boxed value to be set.

[allow-none]

g_value_set_static_boxed ()

void
g_value_set_static_boxed (GValue *value,
                          gconstpointer v_boxed);

Set the contents of a G_TYPE_BOXED derived GValue to v_boxed . The boxed value is assumed to be static, and is thus not duplicated when setting the GValue.

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

v_boxed

static boxed value to be set.

[allow-none]

g_value_take_boxed ()

void
g_value_take_boxed (GValue *value,
                    gconstpointer v_boxed);

Sets the contents of a G_TYPE_BOXED derived GValue to v_boxed and takes over the ownership of the callers reference to v_boxed ; the caller doesn't have to unref it any more.

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

v_boxed

duplicated unowned boxed value to be set.

[allow-none]

Since: 2.4


g_value_set_boxed_take_ownership ()

void
g_value_set_boxed_take_ownership (GValue *value,
                                  gconstpointer v_boxed);

g_value_set_boxed_take_ownership has been deprecated since version 2.4 and should not be used in newly-written code.

Use g_value_take_boxed() instead.

This is an internal function introduced mainly for C marshallers.

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

v_boxed

duplicated unowned boxed value to be set.

[allow-none]

g_value_get_boxed ()

gpointer
g_value_get_boxed (const GValue *value);

Get the contents of a G_TYPE_BOXED derived GValue.

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

Returns

boxed contents of value .

[transfer none]


g_value_dup_boxed ()

gpointer
g_value_dup_boxed (const GValue *value);

Get the contents of a G_TYPE_BOXED derived GValue. Upon getting, the boxed value is duplicated and needs to be later freed with g_boxed_free(), e.g. like: g_boxed_free (G_VALUE_TYPE (value ), return_value);

[skip]

Parameters

value

a valid GValue of G_TYPE_BOXED derived type

 

Returns

boxed contents of value


G_IS_PARAM_SPEC_POINTER()

#define G_IS_PARAM_SPEC_POINTER(pspec)     (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_POINTER))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_POINTER.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_POINTER()

#define G_PARAM_SPEC_POINTER(pspec)        (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_POINTER, GParamSpecPointer))

Casts a GParamSpec instance into a GParamSpecPointer.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_POINTER()

#define G_VALUE_HOLDS_POINTER(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_POINTER))

Checks whether the given GValue can hold values of type G_TYPE_POINTER.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_pointer ()

GParamSpec *
g_param_spec_pointer (const gchar *name,
                      const gchar *nick,
                      const gchar *blurb,
                      GParamFlags flags);

Creates a new GParamSpecPointer instance specifying a pointer property. Where possible, it is better to use g_param_spec_object() or g_param_spec_boxed() to expose memory management information.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_pointer ()

void
g_value_set_pointer (GValue *value,
                     gpointer v_pointer);

Set the contents of a pointer GValue to v_pointer .

Parameters

value

a valid GValue of G_TYPE_POINTER

 

v_pointer

pointer value to be set

 

g_value_get_pointer ()

gpointer
g_value_get_pointer (const GValue *value);

Get the contents of a pointer GValue.

Parameters

value

a valid GValue of G_TYPE_POINTER

 

Returns

pointer contents of value .

[transfer none]


G_IS_PARAM_SPEC_OBJECT()

#define G_IS_PARAM_SPEC_OBJECT(pspec)      (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_OBJECT))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_OBJECT.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_OBJECT()

#define G_PARAM_SPEC_OBJECT(pspec)         (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_OBJECT, GParamSpecObject))

Casts a GParamSpec instance into a GParamSpecObject.

Parameters

pspec

a valid GParamSpec instance

 

G_VALUE_HOLDS_OBJECT()

#define G_VALUE_HOLDS_OBJECT(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_OBJECT))

Checks whether the given GValue can hold values derived from type G_TYPE_OBJECT.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.


g_param_spec_object ()

GParamSpec *
g_param_spec_object (const gchar *name,
                     const gchar *nick,
                     const gchar *blurb,
                     GType object_type,
                     GParamFlags flags);

Creates a new GParamSpecBoxed instance specifying a G_TYPE_OBJECT derived property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

object_type

G_TYPE_OBJECT derived type of this property

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


g_value_set_object ()

void
g_value_set_object (GValue *value,
                    gpointer v_object);

Set the contents of a G_TYPE_OBJECT derived GValue to v_object .

g_value_set_object() increases the reference count of v_object (the GValue holds a reference to v_object ). If you do not wish to increase the reference count of the object (i.e. you wish to pass your current reference to the GValue because you no longer need it), use g_value_take_object() instead.

It is important that your GValue holds a reference to v_object (either its own, or one it has taken) to ensure that the object won't be destroyed while the GValue still exists).

Parameters

value

a valid GValue of G_TYPE_OBJECT derived type

 

v_object

object value to be set.

[type GObject.Object][allow-none]

g_value_take_object ()

void
g_value_take_object (GValue *value,
                     gpointer v_object);

Sets the contents of a G_TYPE_OBJECT derived GValue to v_object and takes over the ownership of the callers reference to v_object ; the caller doesn't have to unref it any more (i.e. the reference count of the object is not increased).

If you want the GValue to hold its own reference to v_object , use g_value_set_object() instead.

[skip]

Parameters

value

a valid GValue of G_TYPE_OBJECT derived type

 

v_object

object value to be set.

[allow-none]

Since: 2.4


g_value_set_object_take_ownership ()

void
g_value_set_object_take_ownership (GValue *value,
                                   gpointer v_object);

g_value_set_object_take_ownership has been deprecated since version 2.4 and should not be used in newly-written code.

Use g_value_take_object() instead.

This is an internal function introduced mainly for C marshallers.

[skip]

Parameters

value

a valid GValue of G_TYPE_OBJECT derived type

 

v_object

object value to be set.

[allow-none]

g_value_get_object ()

gpointer
g_value_get_object (const GValue *value);

Get the contents of a G_TYPE_OBJECT derived GValue.

Parameters

value

a valid GValue of G_TYPE_OBJECT derived type

 

Returns

object contents of value .

[type GObject.Object][transfer none]


g_value_dup_object ()

gpointer
g_value_dup_object (const GValue *value);

Get the contents of a G_TYPE_OBJECT derived GValue, increasing its reference count. If the contents of the GValue are NULL, then NULL will be returned.

Parameters

value

a valid GValue whose type is derived from G_TYPE_OBJECT

 

Returns

object content of value , should be unreferenced when no longer needed.

[type GObject.Object][transfer full]


G_IS_PARAM_SPEC_UNICHAR()

#define G_IS_PARAM_SPEC_UNICHAR(pspec)     (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_UNICHAR))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_UNICHAR.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_UNICHAR()

#define G_PARAM_SPEC_UNICHAR(pspec)        (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_UNICHAR, GParamSpecUnichar))

Cast a GParamSpec instance into a GParamSpecUnichar.

Parameters

pspec

a valid GParamSpec instance

 

g_param_spec_unichar ()

GParamSpec *
g_param_spec_unichar (const gchar *name,
                      const gchar *nick,
                      const gchar *blurb,
                      gunichar default_value,
                      GParamFlags flags);

Creates a new GParamSpecUnichar instance specifying a G_TYPE_UINT property. GValue structures for this property can be accessed with g_value_set_uint() and g_value_get_uint().

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

default_value

default value for the property specified

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]


G_IS_PARAM_SPEC_VALUE_ARRAY()

#define G_IS_PARAM_SPEC_VALUE_ARRAY(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_VALUE_ARRAY))

G_IS_PARAM_SPEC_VALUE_ARRAY has been deprecated since version 2.32 and should not be used in newly-written code.

Use GArray instead of GValueArray

Checks whether the given GParamSpec is of type G_TYPE_PARAM_VALUE_ARRAY.

Parameters

pspec

a valid GParamSpec instance

 

Returns

TRUE on success.


G_PARAM_SPEC_VALUE_ARRAY()

#define G_PARAM_SPEC_VALUE_ARRAY(pspec)    (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_VALUE_ARRAY, GParamSpecValueArray))

G_PARAM_SPEC_VALUE_ARRAY has been deprecated since version 2.32 and should not be used in newly-written code.

Use GArray instead of GValueArray

Cast a GParamSpec instance into a GParamSpecValueArray.

Parameters

pspec

a valid GParamSpec instance

 

g_param_spec_value_array ()

GParamSpec *
g_param_spec_value_array (const gchar *name,
                          const gchar *nick,
                          const gchar *blurb,
                          GParamSpec *element_spec,
                          GParamFlags flags);

Creates a new GParamSpecValueArray instance specifying a G_TYPE_VALUE_ARRAY property. G_TYPE_VALUE_ARRAY is a G_TYPE_BOXED type, as such, GValue structures for this property can be accessed with g_value_set_boxed() and g_value_get_boxed().

See g_param_spec_internal() for details on property names.

[skip]

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

element_spec

a GParamSpec describing the elements contained in arrays of this property, may be NULL

 

flags

flags for the property specified

 

Returns

a newly created parameter specification


G_IS_PARAM_SPEC_OVERRIDE()

#define G_IS_PARAM_SPEC_OVERRIDE(pspec)    (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_OVERRIDE))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_OVERRIDE.

Parameters

pspec

a GParamSpec

 

Returns

TRUE on success.

Since: 2.4


G_PARAM_SPEC_OVERRIDE()

#define G_PARAM_SPEC_OVERRIDE(pspec)       (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_OVERRIDE, GParamSpecOverride))

Casts a GParamSpec into a GParamSpecOverride.

Parameters

pspec

a GParamSpec

 

Since: 2.4


g_param_spec_override ()

GParamSpec *
g_param_spec_override (const gchar *name,
                       GParamSpec *overridden);

Creates a new property of type GParamSpecOverride. This is used to direct operations to another paramspec, and will not be directly useful unless you are implementing a new base type similar to GObject.

[skip]

Parameters

name

the name of the property.

 

overridden

The property that is being overridden

 

Returns

the newly created GParamSpec

Since: 2.4


G_IS_PARAM_SPEC_GTYPE()

#define G_IS_PARAM_SPEC_GTYPE(pspec)       (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_GTYPE))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_GTYPE.

Parameters

pspec

a GParamSpec

 

Returns

TRUE on success.

Since: 2.10


G_PARAM_SPEC_GTYPE()

#define G_PARAM_SPEC_GTYPE(pspec)          (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_GTYPE, GParamSpecGType))

Casts a GParamSpec into a GParamSpecGType.

Parameters

pspec

a GParamSpec

 

Since: 2.10


G_VALUE_HOLDS_GTYPE()

#define G_VALUE_HOLDS_GTYPE(value)	 (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_GTYPE))

Checks whether the given GValue can hold values of type G_TYPE_GTYPE.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.

Since: 2.12


g_param_spec_gtype ()

GParamSpec *
g_param_spec_gtype (const gchar *name,
                    const gchar *nick,
                    const gchar *blurb,
                    GType is_a_type,
                    GParamFlags flags);

Creates a new GParamSpecGType instance specifying a G_TYPE_GTYPE property.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

is_a_type

a GType whose subtypes are allowed as values of the property (use G_TYPE_NONE for any type)

 

flags

flags for the property specified

 

Returns

a newly created parameter specification.

[transfer full]

Since: 2.10


g_value_get_gtype ()

GType
g_value_get_gtype (const GValue *value);

Get the contents of a G_TYPE_GTYPE GValue.

Parameters

value

a valid GValue of type G_TYPE_GTYPE

 

Returns

the GType stored in value

Since: 2.12


g_value_set_gtype ()

void
g_value_set_gtype (GValue *value,
                   GType v_gtype);

Set the contents of a G_TYPE_GTYPE GValue to v_gtype .

Parameters

value

a valid GValue of type G_TYPE_GTYPE

 

v_gtype

GType to be set

 

Since: 2.12


G_IS_PARAM_SPEC_VARIANT()

#define G_IS_PARAM_SPEC_VARIANT(pspec)      (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM_VARIANT))

Checks whether the given GParamSpec is of type G_TYPE_PARAM_VARIANT.

Parameters

pspec

a GParamSpec

 

Returns

TRUE on success

Since: 2.26


G_PARAM_SPEC_VARIANT()

#define G_PARAM_SPEC_VARIANT(pspec)         (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM_VARIANT, GParamSpecVariant))

Casts a GParamSpec into a GParamSpecVariant.

Parameters

pspec

a GParamSpec

 

Since: 2.26


G_VALUE_HOLDS_VARIANT()

#define G_VALUE_HOLDS_VARIANT(value)     (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_VARIANT))

Checks whether the given GValue can hold values of type G_TYPE_VARIANT.

Parameters

value

a valid GValue structure

 

Returns

TRUE on success.

Since: 2.26


G_TYPE_PARAM_VARIANT

#define G_TYPE_PARAM_VARIANT                (g_param_spec_types[22])

The GType of GParamSpecVariant.

Since: 2.26


g_param_spec_variant ()

GParamSpec *
g_param_spec_variant (const gchar *name,
                      const gchar *nick,
                      const gchar *blurb,
                      const GVariantType *type,
                      GVariant *default_value,
                      GParamFlags flags);

Creates a new GParamSpecVariant instance specifying a GVariant property.

If default_value is floating, it is consumed.

See g_param_spec_internal() for details on property names.

Parameters

name

canonical name of the property specified

 

nick

nick name for the property specified

 

blurb

description of the property specified

 

type

a GVariantType

 

default_value

a GVariant of type type to use as the default value, or NULL.

[allow-none][transfer full]

flags

flags for the property specified

 

Returns

the newly created GParamSpec.

[transfer full]

Since: 2.26


g_value_get_variant ()

GVariant *
g_value_get_variant (const GValue *value);

Get the contents of a variant GValue.

Parameters

value

a valid GValue of type G_TYPE_VARIANT

 

Returns

variant contents of value

Since: 2.26


g_value_dup_variant ()

GVariant *
g_value_dup_variant (const GValue *value);

Get the contents of a variant GValue, increasing its refcount.

Parameters

value

a valid GValue of type G_TYPE_VARIANT

 

Returns

variant contents of value , should be unrefed using g_variant_unref() when no longer needed

Since: 2.26


g_value_set_variant ()

void
g_value_set_variant (GValue *value,
                     GVariant *variant);

Set the contents of a variant GValue to variant . If the variant is floating, it is consumed.

Parameters

value

a valid GValue of type G_TYPE_VARIANT

 

variant

a GVariant, or NULL.

[allow-none]

Since: 2.26


g_value_take_variant ()

void
g_value_take_variant (GValue *value,
                      GVariant *variant);

Set the contents of a variant GValue to variant , and takes over the ownership of the caller's reference to variant ; the caller doesn't have to unref it any more (i.e. the reference count of the variant is not increased).

If variant was floating then its floating reference is converted to a hard reference.

If you want the GValue to hold its own reference to variant , use g_value_set_variant() instead.

This is an internal function introduced mainly for C marshallers.

Parameters

value

a valid GValue of type G_TYPE_VARIANT

 

variant

a GVariant, or NULL.

[nullable][transfer full]

Since: 2.26

Types and Values

G_TYPE_PARAM_BOOLEAN

#define G_TYPE_PARAM_BOOLEAN		   (g_param_spec_types[2])

The GType of GParamSpecBoolean.


struct GParamSpecBoolean

struct GParamSpecBoolean {
  GParamSpec    parent_instance;
  
  gboolean      default_value;
};

A GParamSpec derived structure that contains the meta data for boolean properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gboolean default_value;

default value for the property specified

 

G_TYPE_PARAM_CHAR

#define G_TYPE_PARAM_CHAR		   (g_param_spec_types[0])

The GType of GParamSpecChar.


struct GParamSpecChar

struct GParamSpecChar {
  GParamSpec    parent_instance;
  
  gint8         minimum;
  gint8         maximum;
  gint8         default_value;
};

A GParamSpec derived structure that contains the meta data for character properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gint8 minimum;

minimum value for the property specified

 

gint8 maximum;

maximum value for the property specified

 

gint8 default_value;

default value for the property specified

 

G_TYPE_PARAM_UCHAR

#define G_TYPE_PARAM_UCHAR		   (g_param_spec_types[1])

The GType of GParamSpecUChar.


struct GParamSpecUChar

struct GParamSpecUChar {
  GParamSpec    parent_instance;
  
  guint8        minimum;
  guint8        maximum;
  guint8        default_value;
};

A GParamSpec derived structure that contains the meta data for unsigned character properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

guint8 minimum;

minimum value for the property specified

 

guint8 maximum;

maximum value for the property specified

 

guint8 default_value;

default value for the property specified

 

G_TYPE_PARAM_INT

#define G_TYPE_PARAM_INT		   (g_param_spec_types[3])

The GType of GParamSpecInt.


struct GParamSpecInt

struct GParamSpecInt {
  GParamSpec    parent_instance;
  
  gint          minimum;
  gint          maximum;
  gint          default_value;
};

A GParamSpec derived structure that contains the meta data for integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gint minimum;

minimum value for the property specified

 

gint maximum;

maximum value for the property specified

 

gint default_value;

default value for the property specified

 

G_TYPE_PARAM_UINT

#define G_TYPE_PARAM_UINT		   (g_param_spec_types[4])

The GType of GParamSpecUInt.


struct GParamSpecUInt

struct GParamSpecUInt {
  GParamSpec    parent_instance;
  
  guint         minimum;
  guint         maximum;
  guint         default_value;
};

A GParamSpec derived structure that contains the meta data for unsigned integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

guint minimum;

minimum value for the property specified

 

guint maximum;

maximum value for the property specified

 

guint default_value;

default value for the property specified

 

G_TYPE_PARAM_LONG

#define G_TYPE_PARAM_LONG		   (g_param_spec_types[5])

The GType of GParamSpecLong.


struct GParamSpecLong

struct GParamSpecLong {
  GParamSpec    parent_instance;
  
  glong         minimum;
  glong         maximum;
  glong         default_value;
};

A GParamSpec derived structure that contains the meta data for long integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

glong minimum;

minimum value for the property specified

 

glong maximum;

maximum value for the property specified

 

glong default_value;

default value for the property specified

 

G_TYPE_PARAM_ULONG

#define G_TYPE_PARAM_ULONG		   (g_param_spec_types[6])

The GType of GParamSpecULong.


struct GParamSpecULong

struct GParamSpecULong {
  GParamSpec    parent_instance;
  
  gulong        minimum;
  gulong        maximum;
  gulong        default_value;
};

A GParamSpec derived structure that contains the meta data for unsigned long integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gulong minimum;

minimum value for the property specified

 

gulong maximum;

maximum value for the property specified

 

gulong default_value;

default value for the property specified

 

G_TYPE_PARAM_INT64

#define G_TYPE_PARAM_INT64		   (g_param_spec_types[7])

The GType of GParamSpecInt64.


struct GParamSpecInt64

struct GParamSpecInt64 {
  GParamSpec    parent_instance;
  
  gint64        minimum;
  gint64        maximum;
  gint64        default_value;
};

A GParamSpec derived structure that contains the meta data for 64bit integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gint64 minimum;

minimum value for the property specified

 

gint64 maximum;

maximum value for the property specified

 

gint64 default_value;

default value for the property specified

 

G_TYPE_PARAM_UINT64

#define G_TYPE_PARAM_UINT64		   (g_param_spec_types[8])

The GType of GParamSpecUInt64.


struct GParamSpecUInt64

struct GParamSpecUInt64 {
  GParamSpec    parent_instance;
  
  guint64       minimum;
  guint64       maximum;
  guint64       default_value;
};

A GParamSpec derived structure that contains the meta data for unsigned 64bit integer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

guint64 minimum;

minimum value for the property specified

 

guint64 maximum;

maximum value for the property specified

 

guint64 default_value;

default value for the property specified

 

G_TYPE_PARAM_FLOAT

#define G_TYPE_PARAM_FLOAT		   (g_param_spec_types[12])

The GType of GParamSpecFloat.


struct GParamSpecFloat

struct GParamSpecFloat {
  GParamSpec    parent_instance;
  
  gfloat        minimum;
  gfloat        maximum;
  gfloat        default_value;
  gfloat        epsilon;
};

A GParamSpec derived structure that contains the meta data for float properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gfloat minimum;

minimum value for the property specified

 

gfloat maximum;

maximum value for the property specified

 

gfloat default_value;

default value for the property specified

 

gfloat epsilon;

values closer than epsilon will be considered identical by g_param_values_cmp(); the default value is 1e-30.

 

G_TYPE_PARAM_DOUBLE

#define G_TYPE_PARAM_DOUBLE		   (g_param_spec_types[13])

The GType of GParamSpecDouble.


struct GParamSpecDouble

struct GParamSpecDouble {
  GParamSpec    parent_instance;
  
  gdouble       minimum;
  gdouble       maximum;
  gdouble       default_value;
  gdouble       epsilon;
};

A GParamSpec derived structure that contains the meta data for double properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gdouble minimum;

minimum value for the property specified

 

gdouble maximum;

maximum value for the property specified

 

gdouble default_value;

default value for the property specified

 

gdouble epsilon;

values closer than epsilon will be considered identical by g_param_values_cmp(); the default value is 1e-90.

 

G_TYPE_PARAM_ENUM

#define G_TYPE_PARAM_ENUM		   (g_param_spec_types[10])

The GType of GParamSpecEnum.


struct GParamSpecEnum

struct GParamSpecEnum {
  GParamSpec    parent_instance;
  
  GEnumClass   *enum_class;
  gint          default_value;
};

A GParamSpec derived structure that contains the meta data for enum properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

GEnumClass *enum_class;

the GEnumClass for the enum

 

gint default_value;

default value for the property specified

 

G_TYPE_PARAM_FLAGS

#define G_TYPE_PARAM_FLAGS		   (g_param_spec_types[11])

The GType of GParamSpecFlags.


struct GParamSpecFlags

struct GParamSpecFlags {
  GParamSpec    parent_instance;
  
  GFlagsClass  *flags_class;
  guint         default_value;
};

A GParamSpec derived structure that contains the meta data for flags properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

GFlagsClass *flags_class;

the GFlagsClass for the flags

 

guint default_value;

default value for the property specified

 

G_TYPE_PARAM_STRING

#define G_TYPE_PARAM_STRING		   (g_param_spec_types[14])

The GType of GParamSpecString.


struct GParamSpecString

struct GParamSpecString {
  GParamSpec    parent_instance;
  
  gchar        *default_value;
  gchar        *cset_first;
  gchar        *cset_nth;
  gchar         substitutor;
  guint         null_fold_if_empty : 1;
  guint         ensure_non_null : 1;
};

A GParamSpec derived structure that contains the meta data for string properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gchar *default_value;

default value for the property specified

 

gchar *cset_first;

a string containing the allowed values for the first byte

 

gchar *cset_nth;

a string containing the allowed values for the subsequent bytes

 

gchar substitutor;

the replacement byte for bytes which don't match cset_first or cset_nth .

 

guint null_fold_if_empty : 1;

replace empty string by NULL

 

guint ensure_non_null : 1;

replace NULL strings by an empty string

 

gchararray

typedef gchar* gchararray;

A C representable type name for G_TYPE_STRING.


G_TYPE_PARAM_PARAM

#define G_TYPE_PARAM_PARAM		   (g_param_spec_types[15])

The GType of GParamSpecParam.


struct GParamSpecParam

struct GParamSpecParam {
  GParamSpec    parent_instance;
};

A GParamSpec derived structure that contains the meta data for G_TYPE_PARAM properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

G_TYPE_PARAM_BOXED

#define G_TYPE_PARAM_BOXED		   (g_param_spec_types[16])

The GType of GParamSpecBoxed.


struct GParamSpecBoxed

struct GParamSpecBoxed {
  GParamSpec    parent_instance;
};

A GParamSpec derived structure that contains the meta data for boxed properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

G_TYPE_PARAM_POINTER

#define G_TYPE_PARAM_POINTER		   (g_param_spec_types[17])

The GType of GParamSpecPointer.


struct GParamSpecPointer

struct GParamSpecPointer {
  GParamSpec    parent_instance;
};

A GParamSpec derived structure that contains the meta data for pointer properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

G_TYPE_PARAM_OBJECT

#define G_TYPE_PARAM_OBJECT		   (g_param_spec_types[19])

The GType of GParamSpecObject.


struct GParamSpecObject

struct GParamSpecObject {
  GParamSpec    parent_instance;
};

A GParamSpec derived structure that contains the meta data for object properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

G_TYPE_PARAM_UNICHAR

#define G_TYPE_PARAM_UNICHAR		   (g_param_spec_types[9])

The GType of GParamSpecUnichar.


struct GParamSpecUnichar

struct GParamSpecUnichar {
  GParamSpec    parent_instance;
  
  gunichar      default_value;
};

A GParamSpec derived structure that contains the meta data for unichar (unsigned integer) properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

gunichar default_value;

default value for the property specified

 

G_TYPE_PARAM_VALUE_ARRAY

#define G_TYPE_PARAM_VALUE_ARRAY	   (g_param_spec_types[18])

G_TYPE_PARAM_VALUE_ARRAY has been deprecated since version 2.32 and should not be used in newly-written code.

Use GArray instead of GValueArray

The GType of GParamSpecValueArray.


struct GParamSpecValueArray

struct GParamSpecValueArray {
  GParamSpec    parent_instance;
  GParamSpec   *element_spec;
  guint		fixed_n_elements;
};

A GParamSpec derived structure that contains the meta data for GValueArray properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

GParamSpec *element_spec;

a GParamSpec describing the elements contained in arrays of this property, may be NULL

 

guint fixed_n_elements;

if greater than 0, arrays of this property will always have this many elements

 

G_TYPE_PARAM_OVERRIDE

#define G_TYPE_PARAM_OVERRIDE		   (g_param_spec_types[20])

The GType of GParamSpecOverride.

Since: 2.4


struct GParamSpecOverride

struct GParamSpecOverride {
};

This is a type of GParamSpec type that simply redirects operations to another paramspec. All operations other than getting or setting the value are redirected, including accessing the nick and blurb, validating a value, and so forth. See g_param_spec_get_redirect_target() for retrieving the overidden property. GParamSpecOverride is used in implementing g_object_class_override_property(), and will not be directly useful unless you are implementing a new base type similar to GObject.

Since: 2.4


G_TYPE_PARAM_GTYPE

#define G_TYPE_PARAM_GTYPE		   (g_param_spec_types[21])

The GType of GParamSpecGType.

Since: 2.10


struct GParamSpecGType

struct GParamSpecGType {
  GParamSpec    parent_instance;
  GType         is_a_type;
};

A GParamSpec derived structure that contains the meta data for GType properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

GType is_a_type;

a GType whose subtypes can occur as values

 

Since: 2.10


struct GParamSpecVariant

struct GParamSpecVariant {
  GParamSpec    parent_instance;
  GVariantType *type;
  GVariant     *default_value;
};

A GParamSpec derived structure that contains the meta data for GVariant properties.

Members

GParamSpec parent_instance;

private GParamSpec portion

 

GVariantType *type;

a GVariantType, or NULL

 

GVariant *default_value;

a GVariant, or NULL

 

Since: 2.26