BlackPixelOfScreen






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

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);



screen    Specifies the appropriate Screen structure.

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.











                             ‐2‐


The DoesBackingStore macro returns or 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.

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