DefaultGCOfScreen(3)

NAME

       BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen, DefaultCol-
       ormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen, DefaultVisu-
       alOfScreen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreen-
       NumberOfScreen, EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen,
       MaxCmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen,
       WidthOfScreen, WidthMMOfScreen - screen information functions and
       macros

SYNTAX

       unsigned long BlackPixelOfScreen(Screen *screen);

       unsigned long WhitePixelOfScreen(Screen *screen);

       int CellsOfScreen(Screen *screen);

       Colormap DefaultColormapOfScreen(Screen *screen);

       int DefaultDepthOfScreen(Screen *screen);

       GC DefaultGCOfScreen(Screen *screen);

       Visual *DefaultVisualOfScreen(Screen *screen);

       int DoesBackingStore(Screen *screen);

       Bool DoesSaveUnders(Screen *screen);

       Display *DisplayOfScreen(Screen *screen);

       int XScreenNumberOfScreen(Screen *screen);

       long EventMaskOfScreen(Screen *screen);

       int HeightOfScreen(Screen *screen);

       int HeightMMOfScreen(Screen *screen);

       int MaxCmapsOfScreen(Screen *screen);

       int MinCmapsOfScreen(Screen *screen);

       int PlanesOfScreen(Screen *screen);

       Window RootWindowOfScreen(Screen *screen);

       int WidthOfScreen(Screen *screen);

       int WidthMMOfScreen(Screen *screen);

ARGUMENTS

       screen    Specifies the appropriate Screen structure.

DESCRIPTION

       The BlackPixelOfScreen macro returns the black pixel value of the spec-
       ified screen.

       The WhitePixelOfScreen macro returns the white pixel value of the spec-
       ified screen.

       The CellsOfScreen macro returns the number of colormap cells in the
       default colormap of the specified screen.

       The DefaultColormapOfScreen macro returns the default colormap of the
       specified screen.

       The DefaultDepthOfScreen macro returns the default depth of the root
       window of the specified screen.

       The DefaultGCOfScreen macro returns the default GC of the specified
       screen, which has the same depth as the root window of the screen.

       The DefaultVisualOfScreen macro returns the default visual of the spec-
       ified screen.

       The DoesBackingStore macro returns WhenMapped, NotUseful, or Always,
       which indicate whether the screen supports backing stores.

       The DoesSaveUnders macro returns a Boolean value indicating whether the
       screen supports save unders.

       The DisplayOfScreen macro returns the display of the specified screen.

       The XScreenNumberOfScreen function returns the screen index number of
       the specified screen.

       The EventMaskOfScreen macro returns the root event mask of the root
       window for the specified screen at connection setup.

       The HeightOfScreen macro returns the height of the specified screen.

       The HeightMMOfScreen macro returns the height of the specified screen
       in millimeters.

       The MaxCmapsOfScreen macro returns the maximum number of installed col-
       ormaps supported by the specified screen.

       The MinCmapsOfScreen macro returns the minimum number of installed col-
       ormaps supported by the specified screen.

       The PlanesOfScreen macro returns the number of planes in the root win-
       dow of the specified screen.

       The RootWindowOfScreen macro returns the root window of the specified
       screen.

       The WidthOfScreen macro returns the width of the specified screen.

       The WidthMMOfScreen macro returns the width of the specified screen in
       millimeters.

SEE ALSO

       AllPlanes(3X11), ImageByteOrder(3X11), IsCursorKey(3X11)
       Xlib - C Language X Interface

X Version 11                     libX11 1.1.1            BlackPixelOfScreen(3)