NAME

XScreenCount, XScreenNumberOfScreen, XScreenOfDisplay, ScreenCount, ScreenNumberOfScreen, ScreenOfDisplay — get screen information. 

SYNOPSIS

int XScreenCount(display)
      Display ∗display; int XScreenNumberOfScreen(screen)
      Screen ∗screen; Screen ∗XScreenOfDisplay(display, screen_number)
      Display ∗display;
      int screen_number;

ARGUMENTS

displaySpecifies a connection to an X server; returned from XOpenDisplay(). 

screenSpecifies the appropriate Screen structure. 

screen_number
Specifies the appropriate screen number on the host server.

RETURNS

The number of screens, a screen number, or a Screen structure. 

DESCRIPTION

XScreenCount() returns the number of screens on the specified display.  XScreenNumberOfScreen() returns a screen number given a pointer to a Screen structure.  XScreenOfDisplay() returns pointer to a Screen structure given the screen number.  XScreenNumberOfScreen() and XScreenOfDisplay() are opposites. 

The C language macros ScreenCount(), ScreenNumberOfScreen(), and ScreenOfDisplay() are equivalent and slightly more efficient. 

SEE ALSO

XDefaultScreenOfDisplay(), XDefaultScreen∗(). 

Xlib Reference Manual