Initial import of the CDE 2.1.30 sources from the Open Group.

cde/lib/DtSvc/DtUtil2/GetDispRes.c

@@ -0,0 +1,69 @@
+/*
+ * (c) Copyright 1993, 1994 Hewlett-Packard Company                     *
+ * (c) Copyright 1993, 1994 International Business Machines Corp.       *
+ * (c) Copyright 1993, 1994 Sun Microsystems, Inc.                      *
+ * (c) Copyright 1993, 1994 Novell, Inc.                                *
+ */
+/****************************<+>*************************************
+ **
+ **   File:     GetDispRes.c
+ **
+ **   RCS:	$XConsortium: GetDispRes.c /main/4 1995/10/26 15:22:04 rswiston $
+ **
+ **   Project:  HP DT Runtime Library
+ **
+ **   Description: Get the display resolution of a particular display
+ **                and screen.
+ **
+ **   (c) Copyright 1992 by Hewlett-Packard Company
+ **
+ ********************************************************************/
+#include <stdio.h>
+#include <X11/Xlib.h>
+#include "GetDispRes.h"
+
+/******************************<->*************************************
+ *
+ *  _DtGetDisplayResolution(DISPLAY, screen)
+ *
+ *  Description:
+ *  -----------
+ *  This function determines whether a display is HIGH, MEDIUM, or
+ *  LOW display resolution.
+ *
+ *  Inputs:
+ *  -------
+ *  Pointer to the DISPLAY and a screen number
+ *
+ *  Outputs:
+ *  -------
+ *  One of four types of resolution:  HIGH_RES_DISPLAY, 
+ *				      MED_RES_DISPLAY,
+ *				      LOW_RES_DISPLAY,
+ *				      NO_RES_DISPLAY (if below min for LOW) 
+ * 
+ *  Comments:
+ *  --------
+ *  Algorithm only uses XWidthOfScreen to make the determination.
+ * 
+ ******************************<->***********************************/
+int
+_DtGetDisplayResolution(Display *disp, int  screen)
+{
+	int screenWidth = XDisplayWidth(disp, screen);
+
+	if (screenWidth >= _DT_HIGH_RES_MIN) {
+	   return(HIGH_RES_DISPLAY);
+	}
+
+	if (screenWidth >= _DT_MED_RES_MIN) {
+	   return(MED_RES_DISPLAY);
+	}
+
+	if (screenWidth >= _DT_LOW_RES_MIN) {
+	   return(LOW_RES_DISPLAY);
+  	}
+
+	return(NO_RES_DISPLAY);
+}
+/**************         eof          ******************/