BlackPixelOfScreen(XS)   X Version 11 (Release 5)     BlackPixelOfScreen(XS)
                                6 January 1993


 Name

    BlackPixelOfScreen - 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 speci-
    fied screen.

    The WhitePixelOfScreen macro returns the white pixel value of the speci-
    fied 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 win-
    dow 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 speci-
    fied 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 win-
    dow 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 color-
    maps supported by the specified screen.

    The MinCmapsOfScreen macro returns the minimum number of installed color-
    maps 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(XS), ImageByteOrder(XS), IsCursorKey(XS)
    Xlib - C Language X Interface