X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d935b42145c01cb82a0b74a5f9b1c34f40e0d711..35bb3cb155917b4287fb2a3841bea22919a3d499:/src/msw/window.cpp?ds=inline

diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index 3fd01af496..8cea552169 100644
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -4506,6 +4506,10 @@ bool wxWindowMSW::HandlePaint()
     eventNc.SetEventObject(this);
     GetEventHandler()->ProcessEvent(eventNc);
 
+    // don't keep an HRGN we don't need any longer (GetUpdateRegion() can only
+    // be called from inside the event handlers called above)
+    m_updateRegion.Clear();
+
     return processed;
 }