gtkmm: Gdk Namespace Reference

Namespaces

 Cairo
 

Classes

class  Bitmap
 Bitmaps are simply pixmaps with a depth of 1. More...

 
class  Color
 Gdk::Color is used to describe an allocated or unallocated color. More...

 
class  Colormap
 A Colormap is an object that contains the mapping between the color values stored in memory and the RGB values that are used to display color values. More...

 
class  Cursor
 This represents a cursor. More...

 
class  Device
 A Gdk::Device instance contains a detailed description of an extended input device. More...

 
class  Display
 Gdk::Display object's purpose is two fold: To grab/ungrab keyboard focus and mouse pointer To manage and provide information about the Gdk::Screen(s) available for this Gdk::Display. More...

 
class  DisplayManager
 The purpose of the GdkDisplayManager singleton object is to offer notification when displays appear or disappear or the default display changes. More...

 
class  DragContext
 A Gdk::DragContext holds information about a drag in progress. More...

 
class  Drawable
 Drawing Primitives. More...

 
class  Event
 
class  GC
 All drawing operations in GDK take a graphics context (GC) argument. More...

 
class  Image
 This represents an area for drawing graphics. More...

 
class  Pixbuf
 
class  PixbufAnimation
 The gdk-pixbuf library provides a simple mechanism to load and represent animations. More...

 
class  PixbufAnimationIter
 An iterator which points to a certain position in a PixbufAnimation. More...

 
class  PixbufError
 Exception class for Gdk::Pixbuf errors. More...

 
class  PixbufFormat
 
class  PixbufLoader
 
class  Pixmap
 Pixmaps are offscreen drawables. More...

 
class  Point
 This is a simple structure containing an x and y coordinate of a point. More...

 
class  Rectangle
 Gdk::Rectangle is a structure holding the position and size of a rectangle. More...

 
class  Region
 This is an opaque data type holding a set of arbitrary pixels, and is usually used for clipping graphical operations (see Gdk::GC::set_clip_region()). More...

 
class  RgbCmap
 
class  Screen
 Object representing a physical screen Gdk::Screen objects are the GDK representation of a physical screen. More...

 
class  Visual
 A Gdk::Visual describes a particular video hardware display format. More...

 
class  Window
 A Gdk::Window is a rectangular region on the screen. More...

 

Typedefs

typedef Glib::ArrayHandle< Color, ColorTraits > ArrayHandle_Color
 
typedef GdkGeometry Geometry
 
typedef GdkNativeWindow NativeWindow
 
typedef Glib::ArrayHandle< std::string, AtomStringTraits > ArrayHandle_AtomString
 
typedef Glib::ListHandle< std::string, AtomStringTraits > ListHandle_AtomString
 

Enumerations

enum  CursorType {

  X_CURSOR = 0,

  ARROW = 2,

  BASED_ARROW_DOWN = 4,

  BASED_ARROW_UP = 6,

  BOAT = 8,

  BOGOSITY = 10,

  BOTTOM_LEFT_CORNER = 12,

  BOTTOM_RIGHT_CORNER = 14,

  BOTTOM_SIDE = 16,

  BOTTOM_TEE = 18,

  BOX_SPIRAL = 20,

  CENTER_PTR = 22,

  CIRCLE = 24,

  CLOCK = 26,

  COFFEE_MUG = 28,

  CROSS = 30,

  CROSS_REVERSE = 32,

  CROSSHAIR = 34,

  DIAMOND_CROSS = 36,

  DOT = 38,

  DOTBOX = 40,

  DOUBLE_ARROW = 42,

  DRAFT_LARGE = 44,

  DRAFT_SMALL = 46,

  DRAPED_BOX = 48,

  EXCHANGE = 50,

  FLEUR = 52,

  GOBBLER = 54,

  GUMBY = 56,

  HAND1 = 58,

  HAND2 = 60,

  HEART = 62,

  ICON = 64,

  IRON_CROSS = 66,

  LEFT_PTR = 68,

  LEFT_SIDE = 70,

  LEFT_TEE = 72,

  LEFTBUTTON = 74,

  LL_ANGLE = 76,

  LR_ANGLE = 78,

  MAN = 80,

  MIDDLEBUTTON = 82,

  MOUSE = 84,

  PENCIL = 86,

  PIRATE = 88,

  PLUS = 90,

  QUESTION_ARROW = 92,

  RIGHT_PTR = 94,

  RIGHT_SIDE = 96,

  RIGHT_TEE = 98,

  RIGHTBUTTON = 100,

  RTL_LOGO = 102,

  SAILBOAT = 104,

  SB_DOWN_ARROW = 106,

  SB_H_DOUBLE_ARROW = 108,

  SB_LEFT_ARROW = 110,

  SB_RIGHT_ARROW = 112,

  SB_UP_ARROW = 114,

  SB_V_DOUBLE_ARROW = 116,

  SHUTTLE = 118,

  SIZING = 120,

  SPIDER = 122,

  SPRAYCAN = 124,

  STAR = 126,

  TARGET = 128,

  TCROSS = 130,

  TOP_LEFT_ARROW = 132,

  TOP_LEFT_CORNER = 134,

  TOP_RIGHT_CORNER = 136,

  TOP_SIDE = 138,

  TOP_TEE = 140,

  TREK = 142,

  UL_ANGLE = 144,

  UMBRELLA = 146,

  UR_ANGLE = 148,

  WATCH = 150,

  XTERM = 152,

  LAST_CURSOR = 153,

  BLANK_CURSOR = -2,

  CURSOR_IS_PIXMAP = -1

}
 
enum  InputMode {

  MODE_DISABLED,

  MODE_SCREEN,

  MODE_WINDOW

}
 
enum  InputSource {

  SOURCE_MOUSE,

  SOURCE_PEN,

  SOURCE_ERASER,

  SOURCE_CURSOR

}
 
enum  DragAction {

  ACTION_DEFAULT = 1 << 0,

  ACTION_COPY = 1 << 1,

  ACTION_MOVE = 1 << 2,

  ACTION_LINK = 1 << 3,

  ACTION_PRIVATE = 1 << 4,

  ACTION_ASK = 1 << 5

}
 
enum  DragProtocol {

  DRAG_PROTO_MOTIF,

  DRAG_PROTO_XDND,

  DRAG_PROTO_NONE,

  DRAG_PROTO_WIN32_DROPFILES,

  DRAG_PROTO_OLE2,

  DRAG_PROTO_LOCAL

}
 
enum  RgbDither {

  RGB_DITHER_NONE,

  RGB_DITHER_NORMAL,

  RGB_DITHER_MAX

}
 
enum  EventType {

  NOTHING = -1,

  DELETE,

  DESTROY,

  EXPOSE,

  MOTION_NOTIFY,

  BUTTON_PRESS,

  DOUBLE_BUTTON_PRESS,

  TRIPLE_BUTTON_PRESS,

  BUTTON_RELEASE,

  KEY_PRESS,

  KEY_RELEASE,

  ENTER_NOTIFY,

  LEAVE_NOTIFY,

  FOCUS_CHANGE,

  CONFIGURE,

  MAP,

  UNMAP,

  PROPERTY_NOTIFY,

  SELECTION_CLEAR,

  SELECTION_REQUEST,

  SELECTION_NOTIFY,

  PROXIMITY_IN,

  PROXIMITY_OUT,

  DRAG_ENTER,

  DRAG_LEAVE,

  DRAG_MOTION,

  DRAG_STATUS,

  DROP_START,

  DROP_FINISHED,

  CLIENT_EVENT,

  VISIBILITY_NOTIFY,

  NO_EXPOSE,

  SCROLL,

  WINDOW_STATE,

  SETTING,

  OWNER_CHANGE,

  GRAB_BROKEN,

  DAMAGE,

  EVENT_LAST

}
 
enum  ExtensionMode {

  EXTENSION_EVENTS_NONE,

  EXTENSION_EVENTS_ALL,

  EXTENSION_EVENTS_CURSOR

}
 
enum  AxisUse {

  AXIS_IGNORE,

  AXIS_X,

  AXIS_Y,

  AXIS_PRESSURE,

  AXIS_XTILT,

  AXIS_YTILT,

  AXIS_WHEEL,

  AXIS_LAST

}
 
enum  LineStyle {

  LINE_SOLID,

  LINE_ON_OFF_DASH,

  LINE_DOUBLE_DASH

}
 
enum  CapStyle {

  CAP_NOT_LAST,

  CAP_BUTT,

  CAP_ROUND,

  CAP_PROJECTING

}
 
enum  JoinStyle {

  JOIN_MITER,

  JOIN_ROUND,

  JOIN_BEVEL

}
 
enum  Fill {

  SOLID,

  TILED,

  STIPPLED,

  OPAQUE_STIPPLED

}
 
enum  Function {

  COPY,

  INVERT,

  XOR,

  CLEAR,

  AND,

  AND_REVERSE,

  AND_INVERT,

  NOOP,

  OR,

  EQUIV,

  OR_REVERSE,

  COPY_INVERT,

  OR_INVERT,

  NAND,

  NOR,

  SET

}
 
enum  SubwindowMode {

  CLIP_BY_CHILDREN,

  INCLUDE_INFERIORS

}
 
enum  GCValuesMask {

  GC_FOREGROUND = 1 << 0,

  GC_BACKGROUND = 1 << 1,

  GC_FONT = 1 << 2,

  GC_FUNCTION = 1 << 3,

  GC_FILL = 1 << 4,

  GC_TILE = 1 << 5,

  GC_STIPPLE = 1 << 6,

  GC_CLIP_MASK = 1 << 7,

  GC_SUBWINDOW = 1 << 8,

  GC_TS_X_ORIGIN = 1 << 9,

  GC_TS_Y_ORIGIN = 1 << 10,

  GC_CLIP_X_ORIGIN = 1 << 11,

  GC_CLIP_Y_ORIGIN = 1 << 12,

  GC_EXPOSURES = 1 << 13,

  GC_LINE_WIDTH = 1 << 14,

  GC_LINE_STYLE = 1 << 15,

  GC_CAP_STYLE = 1 << 16,

  GC_JOIN_STYLE = 1 << 17

}
 
enum  ImageType {

  IMAGE_NORMAL,

  IMAGE_SHARED,

  IMAGE_FASTEST

}
 
enum  Colorspace { COLORSPACE_RGB }
 
enum  InterpType {

  INTERP_NEAREST,

  INTERP_TILES,

  INTERP_BILINEAR,

  INTERP_HYPER

}
 
enum  PixbufAlphaMode {

  PIXBUF_ALPHA_BILEVEL,

  PIXBUF_ALPHA_FULL

}
 
enum  PixbufRotation {

  PIXBUF_ROTATE_NONE = 0,

  PIXBUF_ROTATE_COUNTERCLOCKWISE = 90,

  PIXBUF_ROTATE_UPSIDEDOWN = 180,

  PIXBUF_ROTATE_CLOCKWISE = 270

}
 
enum  FillRule {

  EVEN_ODD_RULE,

  WINDING_RULE

}
 
enum  OverlapType {

  OVERLAP_RECTANGLE_IN,

  OVERLAP_RECTANGLE_OUT,

  OVERLAP_RECTANGLE_PART

}
 
enum  ByteOrder {

  LSB_FIRST,

  MSB_FIRST

}
 
enum  ModifierType {

  SHIFT_MASK = 1 << 0,

  LOCK_MASK = 1 << 1,

  CONTROL_MASK = 1 << 2,

  MOD1_MASK = 1 << 3,

  MOD2_MASK = 1 << 4,

  MOD3_MASK = 1 << 5,

  MOD4_MASK = 1 << 6,

  MOD5_MASK = 1 << 7,

  BUTTON1_MASK = 1 << 8,

  BUTTON2_MASK = 1 << 9,

  BUTTON3_MASK = 1 << 10,

  BUTTON4_MASK = 1 << 11,

  BUTTON5_MASK = 1 << 12,

  SUPER_MASK = 1 << 26,

  HYPER_MASK = 1 << 27,

  META_MASK = 1 << 28,

  RELEASE_MASK = 1 << 30,

  MODIFIER_MASK = 0x5c001fff

}
 
enum  Status {

  OK = 0,

  ERROR = -1,

  ERROR_PARAM = -2,

  ERROR_FILE = -3,

  ERROR_MEM = -4

}
 
enum  InputCondition {

  INPUT_READ = 1 << 0,

  INPUT_WRITE = 1 << 1,

  INPUT_EXCEPTION = 1 << 2

}
 
enum  VisualType {

  VISUAL_STATIC_GRAY,

  VISUAL_GRAYSCALE,

  VISUAL_STATIC_COLOR,

  VISUAL_PSEUDO_COLOR,

  VISUAL_TRUE_COLOR,

  VISUAL_DIRECT_COLOR

}
 
enum  EventMask {

  EXPOSURE_MASK = 1 << 1,

  POINTER_MOTION_MASK = 1 << 2,

  POINTER_MOTION_HINT_MASK = 1 << 3,

  BUTTON_MOTION_MASK = 1 << 4,

  BUTTON1_MOTION_MASK = 1 << 5,

  BUTTON2_MOTION_MASK = 1 << 6,

  BUTTON3_MOTION_MASK = 1 << 7,

  BUTTON_PRESS_MASK = 1 << 8,

  BUTTON_RELEASE_MASK = 1 << 9,

  KEY_PRESS_MASK = 1 << 10,

  KEY_RELEASE_MASK = 1 << 11,

  ENTER_NOTIFY_MASK = 1 << 12,

  LEAVE_NOTIFY_MASK = 1 << 13,

  FOCUS_CHANGE_MASK = 1 << 14,

  STRUCTURE_MASK = 1 << 15,

  PROPERTY_CHANGE_MASK = 1 << 16,

  VISIBILITY_NOTIFY_MASK = 1 << 17,

  PROXIMITY_IN_MASK = 1 << 18,

  PROXIMITY_OUT_MASK = 1 << 19,

  SUBSTRUCTURE_MASK = 1 << 20,

  SCROLL_MASK = 1 << 21,

  ALL_EVENTS_MASK = 0x3FFFFE

}
 
enum  WindowState {

  WINDOW_STATE_WITHDRAWN = 1 << 0,

  WINDOW_STATE_ICONIFIED = 1 << 1,

  WINDOW_STATE_MAXIMIZED = 1 << 2,

  WINDOW_STATE_STICKY = 1 << 3,

  WINDOW_STATE_FULLSCREEN = 1 << 4,

  WINDOW_STATE_ABOVE = 1 << 5,

  WINDOW_STATE_BELOW = 1 << 6

}
 
enum  WindowType {

  WINDOW_ROOT,

  WINDOW_TOPLEVEL,

  WINDOW_CHILD,

  WINDOW_DIALOG,

  WINDOW_TEMP,

  WINDOW_FOREIGN,

  WINDOW_OFFSCREEN

}
 
enum  WindowAttributesType {

  WA_TITLE = 1 << 1,

  WA_X = 1 << 2,

  WA_Y = 1 << 3,

  WA_CURSOR = 1 << 4,

  WA_COLORMAP = 1 << 5,

  WA_VISUAL = 1 << 6,

  WA_WMCLASS = 1 << 7,

  WA_NOREDIR = 1 << 8,

  WA_TYPE_HINT = 1 << 9

}
 
enum  WindowHints {

  HINT_POS = 1 << 0,

  HINT_MIN_SIZE = 1 << 1,

  HINT_MAX_SIZE = 1 << 2,

  HINT_BASE_SIZE = 1 << 3,

  HINT_ASPECT = 1 << 4,

  HINT_RESIZE_INC = 1 << 5,

  HINT_WIN_GRAVITY = 1 << 6,

  HINT_USER_POS = 1 << 7,

  HINT_USER_SIZE = 1 << 8

}
 
enum  WindowTypeHint {

  WINDOW_TYPE_HINT_NORMAL,

  WINDOW_TYPE_HINT_DIALOG,

  WINDOW_TYPE_HINT_MENU,

  WINDOW_TYPE_HINT_TOOLBAR,

  WINDOW_TYPE_HINT_SPLASHSCREEN,

  WINDOW_TYPE_HINT_UTILITY,

  WINDOW_TYPE_HINT_DOCK,

  WINDOW_TYPE_HINT_DESKTOP,

  WINDOW_TYPE_HINT_DROPDOWN_MENU,

  WINDOW_TYPE_HINT_POPUP_MENU,

  WINDOW_TYPE_HINT_TOOLTIP,

  WINDOW_TYPE_HINT_NOTIFICATION,

  WINDOW_TYPE_HINT_COMBO,

  WINDOW_TYPE_HINT_DND

}
 
enum  WMDecoration {

  DECOR_ALL = 1 << 0,

  DECOR_BORDER = 1 << 1,

  DECOR_RESIZEH = 1 << 2,

  DECOR_TITLE = 1 << 3,

  DECOR_MENU = 1 << 4,

  DECOR_MINIMIZE = 1 << 5,

  DECOR_MAXIMIZE = 1 << 6

}
 
enum  WMFunction {

  FUNC_ALL = 1 << 0,

  FUNC_RESIZE = 1 << 1,

  FUNC_MOVE = 1 << 2,

  FUNC_MINIMIZE = 1 << 3,

  FUNC_MAXIMIZE = 1 << 4,

  FUNC_CLOSE = 1 << 5

}
 
enum  WindowEdge {

  WINDOW_EDGE_NORTH_WEST,

  WINDOW_EDGE_NORTH,

  WINDOW_EDGE_NORTH_EAST,

  WINDOW_EDGE_WEST,

  WINDOW_EDGE_EAST,

  WINDOW_EDGE_SOUTH_WEST,

  WINDOW_EDGE_SOUTH,

  WINDOW_EDGE_SOUTH_EAST

}
 
enum  Gravity {

  GRAVITY_NORTH_WEST = 1,

  GRAVITY_NORTH,

  GRAVITY_NORTH_EAST,

  GRAVITY_WEST,

  GRAVITY_CENTER,

  GRAVITY_EAST,

  GRAVITY_SOUTH_WEST,

  GRAVITY_SOUTH,

  GRAVITY_SOUTH_EAST,

  GRAVITY_STATIC

}
 
enum  GrabStatus {

  GRAB_SUCCESS,

  GRAB_ALREADY_GRABBED,

  GRAB_INVALID_TIME,

  GRAB_NOT_VIEWABLE,

  GRAB_FROZEN

}
 

Functions

DragAction operator| (DragAction lhs, DragAction rhs)
 
DragAction operator& (DragAction lhs, DragAction rhs)
 
DragAction operator^ (DragAction lhs, DragAction rhs)
 
DragAction operator~ (DragAction flags)
 
DragActionoperator|= (DragAction& lhs, DragAction rhs)
 
DragActionoperator&= (DragAction& lhs, DragAction rhs)
 
DragActionoperator^= (DragAction& lhs, DragAction rhs)
 
GCValuesMask operator| (GCValuesMask lhs, GCValuesMask rhs)
 
GCValuesMask operator& (GCValuesMask lhs, GCValuesMask rhs)
 
GCValuesMask operator^ (GCValuesMask lhs, GCValuesMask rhs)
 
GCValuesMask operator~ (GCValuesMask flags)
 
GCValuesMaskoperator|= (GCValuesMask& lhs, GCValuesMask rhs)
 
GCValuesMaskoperator&= (GCValuesMask& lhs, GCValuesMask rhs)
 
GCValuesMaskoperator^= (GCValuesMask& lhs, GCValuesMask rhs)
 
ModifierType operator| (ModifierType lhs, ModifierType rhs)
 
ModifierType operator& (ModifierType lhs, ModifierType rhs)
 
ModifierType operator^ (ModifierType lhs, ModifierType rhs)
 
ModifierType operator~ (ModifierType flags)
 
ModifierTypeoperator|= (ModifierType& lhs, ModifierType rhs)
 
ModifierTypeoperator&= (ModifierType& lhs, ModifierType rhs)
 
ModifierTypeoperator^= (ModifierType& lhs, ModifierType rhs)
 
InputCondition operator| (InputCondition lhs, InputCondition rhs)
 
InputCondition operator& (InputCondition lhs, InputCondition rhs)
 
InputCondition operator^ (InputCondition lhs, InputCondition rhs)
 
InputCondition operator~ (InputCondition flags)
 
InputConditionoperator|= (InputCondition& lhs, InputCondition rhs)
 
InputConditionoperator&= (InputCondition& lhs, InputCondition rhs)
 
InputConditionoperator^= (InputCondition& lhs, InputCondition rhs)
 
EventMask operator| (EventMask lhs, EventMask rhs)
 
EventMask operator& (EventMask lhs, EventMask rhs)
 
EventMask operator^ (EventMask lhs, EventMask rhs)
 
EventMask operator~ (EventMask flags)
 
EventMaskoperator|= (EventMask& lhs, EventMask rhs)
 
EventMaskoperator&= (EventMask& lhs, EventMask rhs)
 
EventMaskoperator^= (EventMask& lhs, EventMask rhs)
 
WindowState operator| (WindowState lhs, WindowState rhs)
 
WindowState operator& (WindowState lhs, WindowState rhs)
 
WindowState operator^ (WindowState lhs, WindowState rhs)
 
WindowState operator~ (WindowState flags)
 
WindowStateoperator|= (WindowState& lhs, WindowState rhs)
 
WindowStateoperator&= (WindowState& lhs, WindowState rhs)
 
WindowStateoperator^= (WindowState& lhs, WindowState rhs)
 
WindowAttributesType operator| (WindowAttributesType lhs, WindowAttributesType rhs)
 
WindowAttributesType operator& (WindowAttributesType lhs, WindowAttributesType rhs)
 
WindowAttributesType operator^ (WindowAttributesType lhs, WindowAttributesType rhs)
 
WindowAttributesType operator~ (WindowAttributesType flags)
 
WindowAttributesTypeoperator|= (WindowAttributesType& lhs, WindowAttributesType rhs)
 
WindowAttributesTypeoperator&= (WindowAttributesType& lhs, WindowAttributesType rhs)
 
WindowAttributesTypeoperator^= (WindowAttributesType& lhs, WindowAttributesType rhs)
 
WindowHints operator| (WindowHints lhs, WindowHints rhs)
 
WindowHints operator& (WindowHints lhs, WindowHints rhs)
 
WindowHints operator^ (WindowHints lhs, WindowHints rhs)
 
WindowHints operator~ (WindowHints flags)
 
WindowHintsoperator|= (WindowHints& lhs, WindowHints rhs)
 
WindowHintsoperator&= (WindowHints& lhs, WindowHints rhs)
 
WindowHintsoperator^= (WindowHints& lhs, WindowHints rhs)
 
WMDecoration operator| (WMDecoration lhs, WMDecoration rhs)
 
WMDecoration operator& (WMDecoration lhs, WMDecoration rhs)
 
WMDecoration operator^ (WMDecoration lhs, WMDecoration rhs)
 
WMDecoration operator~ (WMDecoration flags)
 
WMDecorationoperator|= (WMDecoration& lhs, WMDecoration rhs)
 
WMDecorationoperator&= (WMDecoration& lhs, WMDecoration rhs)
 
WMDecorationoperator^= (WMDecoration& lhs, WMDecoration rhs)
 
WMFunction operator| (WMFunction lhs, WMFunction rhs)
 
WMFunction operator& (WMFunction lhs, WMFunction rhs)
 
WMFunction operator^ (WMFunction lhs, WMFunction rhs)
 
WMFunction operator~ (WMFunction flags)
 
WMFunctionoperator|= (WMFunction& lhs, WMFunction rhs)
 
WMFunctionoperator&= (WMFunction& lhs, WMFunction rhs)
 
WMFunctionoperator^= (WMFunction& lhs, WMFunction rhs)
 
int screen_width ()
 
int screen_height ()
 
int screen_width_mm ()
 
int screen_height_mm ()
 
void flush ()
 
Glib::RefPtr< Colormaprgb_get_colormap ()
 Get the preferred colormap for rendering image data. More...

 
Glib::RefPtr< Visualrgb_get_visual ()
 Gets a "preferred visual" chosen by GdkRGB for rendering image data on the default screen. More...

 
bool rgb_ditherable ()
 Determines whether the visual is ditherable. More...

 

Typedef Documentation

typedef GdkGeometry Gdk::Geometry
typedef GdkNativeWindow Gdk::NativeWindow

Function Documentation

void Gdk::flush ( )
bool Gdk::rgb_ditherable ( )

Determines whether the visual is ditherable.

This function may be useful for presenting a user interface choice to the user about which dither mode is desired; if the display is not ditherable, it may make sense to gray out or hide the corresponding UI widget. result true if the visual is ditherable.

Glib::RefPtr<Colormap> Gdk::rgb_get_colormap ( )

Get the preferred colormap for rendering image data.

Not a very useful function; historically, GDK could only render RGB image data to one colormap and visual, but in the current version it can render to any colormap and visual. So there's no need to call this function.

Returns
The preferred colormap
Glib::RefPtr<Visual> Gdk::rgb_get_visual ( )

Gets a "preferred visual" chosen by GdkRGB for rendering image data on the default screen.

In previous versions of GDK, this was the only visual GdkRGB could use for rendering. In current versions, it's simply the visual GdkRGB would have chosen as the optimal one in those previous versions. GdkRGB can now render to drawables with any visual.

Returns
The Gdk::Visual chosen by GdkRGB.
int Gdk::screen_height ( )
int Gdk::screen_height_mm ( )
int Gdk::screen_width ( )
int Gdk::screen_width_mm ( )