Add debugging function for showing monitor geometry

src/server.c

@@ -364,6 +364,20 @@ next:
 	}
 }
 
+void print_monitors()
+{
+	fprintf(stderr, "Number of monitors: %d\n", server.nb_monitor);
+	int i;
+	for (i = 0; i < server.nb_monitor; i++) {
+		fprintf(stderr, "Monitor %d: x = %d, y = %d, w = %d, h = %d\n",
+				i+1,
+				server.monitor[i].x,
+				server.monitor[i].y,
+				server.monitor[i].width,
+				server.monitor[i].height);
+	}
+}
+
 int server_get_number_of_desktops()
 {
 	return get_property32(server.root_win, server.atom._NET_NUMBER_OF_DESKTOPS, XA_CARDINAL);

src/server.h

@@ -153,6 +153,7 @@ void get_root_pixmap();
 
 // detect monitors and desktops
 void get_monitors();
+void print_monitors();
 void get_desktops();
 int server_get_number_of_desktops();