hpux man page for xwidthofscreen

XWidth*OfScreen()														 XWidth*OfScreen()

Name
  XWidthOfScreen, XWidthMMOfScreen, WidthOfScreen, WidthMMOfScreen - get width of screen in pixels or millimeters

Synopsis
  int XWidthOfScreen(screen)
	   Screen *screen;
  int XWidthMMOfScreen(screen)
	   Screen *screen;

Arguments
  screen    Specifies the appropriate Screen structure.

Returns
  The width in pixels or millimeters.

Description
  XWidthOfScreen() returns the width of the specified screen in pixels.  XWidthMMOfScreen() returns the width of the specified screen in mil-
  limeters.

  The C language macros WidthOfScreen() and WidthMMOfScreen() are equivalent and slightly more efficient.

  These functions are equivalent to XDisplayWidth*() and XDisplayWidthMM() except that they take different arguments.

See Also
  XDisplayHeight(), XDisplayHeightMM().

Xlib - Macro Equivalents													 XWidth*OfScreen()