X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6afafc42fcf42ce84c9e1c0a7c00d3a0376d1aef..56bd6aaca9d758663e202816e1861ee8674526e7:/src/msw/app.cpp

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 399e734e84..36dedf8627 100644
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -1280,12 +1280,22 @@ void wxExit()
 }
 
 // Yield to incoming messages
+
+static bool gs_inYield = FALSE;
+
 bool wxYield()
 {
     // disable log flushing from here because a call to wxYield() shouldn't
     // normally result in message boxes popping up &c
     wxLog::Suspend();
 
+#ifdef __WXDEBUG__    
+    if (gs_inYield)
+        wxFAIL_MSG( wxT("wxYield called recursively" ) );
+#endif
+    
+    gs_inYield = TRUE;
+
     // we don't want to process WM_QUIT from here - it should be processed in
     // the main event loop in order to stop it
     MSG msg;
@@ -1307,9 +1317,20 @@ bool wxYield()
     // let the logs be flashed again
     wxLog::Resume();
 
+    gs_inYield = FALSE;
+
     return TRUE;
 }
 
+// Yield to incoming messages; but fail silently if recursion is detected.
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;
+        
+    return wxYield();
+}
+
 bool wxHandleFatalExceptions(bool doit)
 {
 #if wxUSE_ON_FATAL_EXCEPTION