NAME

       BlackPixelOfScreen,     WhitePixelOfScreen,     CellsOfScreen,    DefaultColormapOfScreen,
       DefaultDepthOfScreen,    DefaultGCOfScreen,    DefaultVisualOfScreen,    DoesBackingStore,
       DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen, 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 specified screen.

       The WhitePixelOfScreen macro returns the white pixel value of the specified 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 specified 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 colormaps supported  by
       the specified screen.

       The  MinCmapsOfScreen macro returns the minimum number of installed colormaps supported by
       the specified screen.

       The PlanesOfScreen macro returns the number of planes in the root window 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(3), ImageByteOrder(3), IsCursorKey(3)
       Xlib - C Language X Interface