X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/edc1d330a5d8d7c2f684999516666496fc4794bb..40c08808592b90f4d321e058efb3ffcb6ec90db8:/src/gtk1/window.cpp?ds=sidebyside

diff --git a/src/gtk1/window.cpp b/src/gtk1/window.cpp
index eab8a8917f..2deaff54fe 100644
--- a/src/gtk1/window.cpp
+++ b/src/gtk1/window.cpp
@@ -3454,6 +3454,14 @@ void wxWindowGTK::GtkSendPaintEvents()
     else
     // if (!m_clearRegion.IsEmpty())   // always send an erase event
     {
+        // If the clear region is empty, and the update region isn't,
+        // then we're going to clear more than we repaint,
+        // so let's make sure the two regions are in sync.
+        if (m_clearRegion.IsEmpty() && !m_updateRegion.IsEmpty())
+        {
+            m_clearRegion = m_updateRegion ;
+        }
+        
         wxWindowDC dc( (wxWindow*)this );
         dc.SetClippingRegion( m_clearRegion );