Merge pull request #28 from nut-tree/feature/27/xgetmaindisplay

(#27) Modified XGetMainDisplay to default to $DISPLAY instead of ':0.0'

Author: s1hofmann

src/linux/xdisplay.c

@@ -5,7 +5,7 @@
 
 static Display *mainDisplay = NULL;
 static int registered = 0;
-static char *displayName = ":0.0";
+static char *displayName = NULL;
 static int hasDisplayNameChanged = 0;
 
 Display *XGetMainDisplay(void)
@@ -20,11 +20,6 @@ Display *XGetMainDisplay(void)
 		/* First try the user set displayName */
 		mainDisplay = XOpenDisplay(displayName);
 
-		/* Then try using environment variable DISPLAY */
-		if (mainDisplay == NULL) {
-			mainDisplay = XOpenDisplay(NULL);
-		}
-
 		if (mainDisplay == NULL) {
 			fputs("Could not open main display\n", stderr);
 		} else if (!registered) {