Prevented case where no window was set when waiting for events.

[freeglut] / progs / demos / CallbackMaker / CallbackMaker.c

diff --git a/progs/demos/CallbackMaker/CallbackMaker.c b/progs/demos/CallbackMaker/CallbackMaker.c
index e280148..52044e3 100644 (file)
--- a/progs/demos/CallbackMaker/CallbackMaker.c
+++ b/progs/demos/CallbackMaker/CallbackMaker.c
@@ -663,6 +663,8 @@ main(int argc, char *argv[])
   glutAddMenuEntry( "Sub menu A2 (02)", 12 );
   glutAddMenuEntry( "Sub menu A3 (03)", 13 );
   glutMenuDestroyFunc ( MenuDestroy );  /* callback specific to this menu */
+  /* Change font for this menu */
+  glutSetMenuFont(subMenuA, GLUT_BITMAP_HELVETICA_12);
 
   subMenuB = glutCreateMenu( MenuCallback );
   glutAddMenuEntry( "Sub menu B1 (04)", 14 );
@@ -670,6 +672,7 @@ main(int argc, char *argv[])
   glutAddMenuEntry( "Sub menu B3 (06)", 16 );
   glutAddSubMenu( "Going to sub menu A", subMenuA );
   glutMenuDestroyFunc ( MenuDestroy );  /* callback specific to this menu */
+  glutSetMenuFont(subMenuB, GLUT_BITMAP_9_BY_15);
 
   menuID = glutCreateMenu( MenuCallback );
   glutAddMenuEntry( "Entry one",   21 );