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