Images

Images

Types and Values

Includes

#include <gdk/gdk.h>

Description

Functions

gdk_image_new ()

GdkImage *
gdk_image_new (GdkImageType type,
               GdkVisual *visual,
               gint width,
               gint height);

gdk_image_new is deprecated and should not be used in newly-written code.


gdk_image_new_bitmap ()

GdkImage *
gdk_image_new_bitmap (GdkVisual *visual,
                      gpointer data,
                      gint width,
                      gint height);

gdk_image_new_bitmap is deprecated and should not be used in newly-written code.

Creates a new GdkImage with a depth of 1 from the given data.

THIS FUNCTION IS INCREDIBLY BROKEN. The passed-in data must be allocated by malloc() (NOT g_malloc()) and will be freed when the image is freed.

Parameters

visual

the GdkVisual to use for the image.

 

data

the pixel data.

 

width

the width of the image in pixels.

 

height

the height of the image in pixels.

 

Returns

a new GdkImage.


gdk_image_get ()

GdkImage *
gdk_image_get (GdkDrawable *drawable,
               gint x,
               gint y,
               gint width,
               gint height);

gdk_image_get is deprecated and should not be used in newly-written code.

This is a deprecated wrapper for gdk_drawable_get_image(); gdk_drawable_get_image() should be used instead. Or even better: in most cases gdk_pixbuf_get_from_drawable() is the most convenient choice.

Parameters

drawable

a GdkDrawable

 

x

x coordinate in window

 

y

y coordinate in window

 

width

width of area in window

 

height

height of area in window

 

Returns

a new GdkImage or NULL


gdk_image_ref ()

GdkImage *
gdk_image_ref (GdkImage *image);

gdk_image_ref has been deprecated since version 2.0 and should not be used in newly-written code.

Use g_object_ref() instead.

Deprecated function; use g_object_ref() instead.

Parameters

image

a GdkImage

 

Returns

the image


gdk_image_unref ()

void
gdk_image_unref (GdkImage *image);

gdk_image_unref has been deprecated since version 2.0 and should not be used in newly-written code.

Use g_object_unref() instead.

Deprecated function; use g_object_unref() instead.

Parameters

image

a GdkImage

 

gdk_image_get_colormap ()

GdkColormap *
gdk_image_get_colormap (GdkImage *image);

gdk_image_get_colormap has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Retrieves the colormap for a given image, if it exists. An image will have a colormap if the drawable from which it was created has a colormap, or if a colormap was set explicitely with gdk_image_set_colormap().

Parameters

image

a GdkImage

 

Returns

colormap for the image


gdk_image_set_colormap ()

void
gdk_image_set_colormap (GdkImage *image,
                        GdkColormap *colormap);

gdk_image_set_colormap has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Sets the colormap for the image to the given colormap. Normally there's no need to use this function, images are created with the correct colormap if you get the image from a drawable. If you create the image from scratch, use the colormap of the drawable you intend to render the image to.

Parameters

image

a GdkImage

 

colormap

a GdkColormap

 

gdk_image_get_bits_per_pixel ()

guint16
gdk_image_get_bits_per_pixel (GdkImage *image);

gdk_image_get_bits_per_pixel has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the number of bits per pixel of the image.

Parameters

image

a GdkImage

 

Returns

the bits per pixel

Since: 2.22


gdk_image_get_bytes_per_pixel ()

guint16
gdk_image_get_bytes_per_pixel (GdkImage *image);

gdk_image_get_bytes_per_pixel has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the number of bytes per pixel of the image.

Parameters

image

a GdkImage

 

Returns

the bytes per pixel

Since: 2.22


gdk_image_get_bytes_per_line ()

guint16
gdk_image_get_bytes_per_line (GdkImage *image);

gdk_image_get_bytes_per_line has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the number of bytes per line of the image.

Parameters

image

a GdkImage

 

Returns

the bytes per line

Since: 2.22


gdk_image_get_byte_order ()

GdkByteOrder
gdk_image_get_byte_order (GdkImage *image);

gdk_image_get_byte_order has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the byte order of the image.

Parameters

image

a GdkImage

 

Returns

a GdkVisual

Since: 2.22


gdk_image_get_depth ()

guint16
gdk_image_get_depth (GdkImage *image);

gdk_image_get_depth has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the depth of the image.

Parameters

image

a GdkImage

 

Returns

the depth

Since: 2.22


gdk_image_get_height ()

gint
gdk_image_get_height (GdkImage *image);

gdk_image_get_height has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the height of the image.

Parameters

image

a GdkImage

 

Returns

the height

Since: 2.22


gdk_image_get_image_type ()

GdkImageType
gdk_image_get_image_type (GdkImage *image);

gdk_image_get_image_type has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the type of a given image.

Parameters

image

a GdkImage

 

Returns

the GdkImageType of the image

Since: 2.22


gdk_image_get_visual ()

GdkVisual *
gdk_image_get_visual (GdkImage *image);

gdk_image_get_visual has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the visual that was used to create the image.

Parameters

image

a GdkImage

 

Returns

a GdkVisual

Since: 2.22


gdk_image_get_width ()

gint
gdk_image_get_width (GdkImage *image);

gdk_image_get_width has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Determines the width of the image.

Parameters

image

a GdkImage

 

Returns

the width

Since: 2.22


gdk_image_get_pixels ()

gpointer
gdk_image_get_pixels (GdkImage *image);

gdk_image_get_pixels has been deprecated since version 2.22 and should not be used in newly-written code.

GdkImage should not be used anymore.

Returns a pointer to the pixel data of the image.

Parameters

image

a GdkImage

 

Returns

the pixel data of the image

Since: 2.22


gdk_image_put_pixel ()

void
gdk_image_put_pixel (GdkImage *image,
                     gint x,
                     gint y,
                     guint32 pixel);

gdk_image_put_pixel is deprecated and should not be used in newly-written code.


gdk_image_get_pixel ()

guint32
gdk_image_get_pixel (GdkImage *image,
                     gint x,
                     gint y);

gdk_image_get_pixel is deprecated and should not be used in newly-written code.

Types and Values

GdkImage

typedef struct {
  GObject parent_instance;

  
  GdkImageType GSEAL (type); /* read only. */
  GdkVisual    *GSEAL (visual);	    /* read only. visual used to create the image */
  GdkByteOrder GSEAL (byte_order); /* read only. */
  gint		GSEAL (width);  /* read only. */
  gint		GSEAL (height); /* read only. */
  guint16 GSEAL (depth);  /* read only. */
  guint16 GSEAL (bpp);    /* read only. bytes per pixel */
  guint16 GSEAL (bpl);    /* read only. bytes per line */
  guint16       GSEAL (bits_per_pixel); /* read only. bits per pixel */
  gpointer GSEAL (mem);

  GdkColormap  *GSEAL (colormap); /* read only. */
} GdkImage;

enum GdkImageType

Members

GDK_IMAGE_NORMAL

   

GDK_IMAGE_SHARED

   

GDK_IMAGE_FASTEST

   

gdk_image_destroy

#define gdk_image_destroy              g_object_unref

gdk_image_destroy is deprecated and should not be used in newly-written code.