BlackPixelOfScreen(3X11)

     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
          BlackPixelOfScreen(screen)

          WhitePixelOfScreen(screen)

          CellsOfScreen(screen)

          DefaultColormapOfScreen(screen)

          DefaultDepthOfScreen(screen)

          DefaultGCOfScreen(screen)

          DefaultVisualOfScreen(screen)

          DoesBackingStore(screen)

          DoesSaveUnders(screen)

          DisplayOfScreen(screen)

          int XScreenNumberOfScreen(screen)
                Screen *screen;

          EventMaskOfScreen(screen)

          HeightOfScreen(screen)

          HeightMMOfScreen(screen)

          MaxCmapsOfScreen(screen)

          MinCmapsOfScreen(screen)

          PlanesOfScreen(screen)

          RootWindowOfScreen(screen)

          WidthOfScreen(screen)

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