hpux man page for xwhitepixel

XWhitePixel*()															    XWhitePixel*()

Name
  XWhitePixel, XWhitePixelOfScreen, WhitePixel, WhitePixelOfScreen - get the white pixel value.

Synopsis
  unsigned long XWhitePixel(display, screen_number)
	   Display *display;
	   int screen_number;
  unsigned long XWhitePixelOfScreen(screen)
	   Screen *screen;

Arguments
  display   Specifies a connection to an X server; returned from XOpenDisplay().

  screen_number
	    Specifies the appropriate screen number on the server, as returned by XDefaultScreen*() or the DefaultScreen() macro.

  screen    Specifies  the  appropriate  Screen  structure,  as  returned by XDefaultScreenOfDisplay() or XScreenOfDisplay(), or the Default-
	    ScreenOfDisplay() or ScreenOfDisplay() macros.

Returns
  The pixel value.

Description
  Each screen has a default colormap which has pixel values for white and white already allocated.  These functions return  the  white	pixel
  value.  Note that this pixel value only represents white in a screen's default colormap.

  XWhitePixel()  and  XWhitePixelOfScreen()  are equivalent except that they require different arguments.  One requires a pointer to a Screen
  structure, while the other requires a screen number.	 Unless  you  already  have  the  pointer  to  a  Screen  structure  in  a  variable,
  XWhitePixel*() is more convenient.

  The C language macros WhitePixel() and WhitePixelOfScreen() are equivalent and slightly more efficient.

See Also
  XBlackPixel*(), XBlackPixelOfScreen(), XDefaultColormap*().

Xlib - Macro Equivalents													    XWhitePixel*()