BlackPixelOfScreen(3X)                     BlackPixelOfScreen(3X)



NAME
     BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen,
     DefaultColormapOfScreen, DefaultDepthOfScreen,
     DefaultGCOfScreen, DefaultVisualOfScreen, DoesBackingStore,
     DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen,
     EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen,
     MaxCmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen,
     RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen -  return
     screen values

SYNOPSIS
     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)




November, 1990                                                  1

BlackPixelOfScreen(3X)                     BlackPixelOfScreen(3X)



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 color-
     map 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 win-
     dow 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 sup-
     ports backing stores.

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

     The DisplayOfScreen macro returns the display of the speci-
     fied 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 set-
     up.

     The HeightOfScreen macro returns the height of the specified
     screen.

     The HeightMMOfScreen macro returns the height of the speci-
     fied screen in millimeters.

     The MaxCmapsOfScreen macro returns the maximum number of in-
     stalled colormaps supported by the specified screen.

     The MinCmapsOfScreen macro returns the minimum number of in-
     stalled colormaps supported by the specified screen.




2                                                  November, 1990

BlackPixelOfScreen(3X)                     BlackPixelOfScreen(3X)



     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.

   Arguments
     These functions and macros accept the following arguments:

     screen  Specifies a pointer to the appropriate Screen struc-
             ture.

SEE ALSO
     AllPlanes(3X), ImageByteOrder(3X), IsCursorKey(3X)

     Xlib - C Language Interface


































November, 1990                                                  3