X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e42eaa04de3316a6ff7c7cce485cf13a829b323e..d9f9aa2d8fcb956444588b2c19ffe8d4a3f5d2bb:/src/mac/window.cpp

diff --git a/src/mac/window.cpp b/src/mac/window.cpp
index f44503d555..95e1077a9b 100644
--- a/src/mac/window.cpp
+++ b/src/mac/window.cpp
@@ -1872,7 +1872,7 @@ void wxWindow::MacRedraw( RgnHandle updatergn , long time)
 		  		RGBBackColor( &m_backgroundColour.GetPixel()) ;
 			}
             // subtract all non transparent children from updatergn
-
+            
     	    RgnHandle childarea = NewRgn() ;
         	for (wxNode *node = GetChildren().First(); node; node = node->Next())
         	{
@@ -1880,7 +1880,7 @@ void wxWindow::MacRedraw( RgnHandle updatergn , long time)
         		// eventually test for transparent windows
 		        if ( child->GetMacRootWindow() == window && child->IsShown() )
 		        {
-		            if ( !child->IsKindOf( CLASSINFO( wxControl ) ) && ((wxControl*)child)->GetMacControl() )
+		            if ( child->GetBackgroundColour() != m_backgroundColour && !child->IsKindOf( CLASSINFO( wxControl ) ) && ((wxControl*)child)->GetMacControl() )
 		            {
         		        SetRectRgn( childarea , child->m_x , child->m_y , child->m_x + child->m_width ,  child->m_y + child->m_height ) ;
         		        DiffRgn( ownUpdateRgn , childarea , ownUpdateRgn ) ;