Improved Mac OS implementation of Fl_Window::wait_for_expose().

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10828 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 7 insertions, 5 deletions

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 9c91a79f8..1c10d659b 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -3085,11 +3085,13 @@ void Fl_Window::size_range_() {
   }
 }
 
-void Fl_X::do_wait_for_expose()
-{ // this will make freshly created windows appear on the screen
-  [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:NO];
-  if (fl_mac_os_version >= 101100) { // this extra message seems necessary with 10.11
-    [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:NO];
+void Fl_Window::wait_for_expose()
+{
+  if (shown()) {
+    // this makes freshly created windows appear on the screen, if they are not there already
+    NSModalSession session = [NSApp beginModalSessionForWindow:i->xid];
+    [NSApp runModalSession:session];
+    [NSApp endModalSession:session];
   }
 }