use (new) safer GetTraitsIfExists() in wxMutexGuiEnter/Leave() to avoid crashing...

[wxWidgets.git] / src / msw / imaglist.cpp

diff --git a/src/msw/imaglist.cpp b/src/msw/imaglist.cpp
index 7548695b8c45884ebbf9feb7c7bdfb3d7a16c3cf..4fb0fbb83dae37d837ecea3bb15abe0b7c8ef98b 100644 (file)
--- a/src/msw/imaglist.cpp
+++ b/src/msw/imaglist.cpp
@@ -38,6 +38,8 @@
 #endif
 
 #include "wx/imaglist.h"
+#include "wx/dc.h"
+#include "wx/msw/dc.h"
 #include "wx/msw/private.h"
 
 // ----------------------------------------------------------------------------
@@ -241,7 +243,12 @@ bool wxImageList::Draw(int index,
                        int flags,
                        bool solidBackground)
 {
-    HDC hDC = GetHdcOf(dc);
+    wxDCImpl *impl = dc.GetImpl();
+    wxMSWDCImpl *msw_impl = wxDynamicCast( impl, wxMSWDCImpl );
+    if (!msw_impl)
+       return false;
+    
+    HDC hDC = GetHdcOf(*msw_impl);
     wxCHECK_MSG( hDC, false, _T("invalid wxDC in wxImageList::Draw") );
 
     COLORREF clr = CLR_NONE;    // transparent by default