+
+int wxGUIEventLoop::DispatchTimeout(unsigned long timeout)
+{
+ EventRef event;
+ OSStatus status = ReceiveNextEvent(0, NULL, timeout/1000, true, &event);
+ switch ( status )
+ {
+ default:
+ wxFAIL_MSG( "unexpected ReceiveNextEvent() error" );
+ // fall through
+
+ case eventLoopTimedOutErr:
+ return -1;
+
+ case eventLoopQuitErr:
+ return 0;
+
+ case noErr:
+ DispatchAndReleaseEvent(event);
+ return 1;
+ }
+}
+
+bool wxGUIEventLoop::YieldFor(long eventsToProcess)
+{
+#if wxUSE_THREADS
+ // Yielding from a non-gui thread needs to bail out, otherwise we end up
+ // possibly sending events in the thread too.
+ if ( !wxThread::IsMain() )
+ {
+ return true;
+ }
+#endif // wxUSE_THREADS
+
+ m_isInsideYield = true;
+ m_eventsToProcessInsideYield = eventsToProcess;
+
+#if wxUSE_LOG
+ // disable log flushing from here because a call to wxYield() shouldn't
+ // normally result in message boxes popping up &c
+ wxLog::Suspend();
+#endif // wxUSE_LOG
+
+ // process all pending events:
+ while ( Pending() )
+ Dispatch();
+
+ // it's necessary to call ProcessIdle() to update the frames sizes which
+ // might have been changed (it also will update other things set from
+ // OnUpdateUI() which is a nice (and desired) side effect)
+ while ( ProcessIdle() ) {}
+
+#if wxUSE_LOG
+ wxLog::Resume();
+#endif // wxUSE_LOG
+ m_isInsideYield = false;
+
+ return true;
+}