fixed wxBitmap<->wxImage conversion to not exchange red and blue components

[wxWidgets.git] / src / motif / scrolbar.cpp

diff --git a/src/motif/scrolbar.cpp b/src/motif/scrolbar.cpp
index 5b19681cf389a3c095d49a802c4162fb09984cef..6cbdf29c23e300da9c6e4353ab4ca48a424a44a3 100644 (file)
--- a/src/motif/scrolbar.cpp
+++ b/src/motif/scrolbar.cpp
@@ -125,6 +125,8 @@ static void wxScrollBarCallback(Widget widget, XtPointer clientData,
                                 XmScaleCallbackStruct *cbs)
 {
     wxScrollBar *scrollBar = (wxScrollBar*)wxGetWindowFromTable(widget);
+    wxCHECK_RET( scrollBar, _T("invalid widget in scrollbar callback") );
+
     wxOrientation orientation = (wxOrientation)wxPtrToUInt(clientData);
     wxEventType eventType = wxEVT_NULL;