Hi,
I have found a bug in Wine's comctl32.dll that causes crashes with
subclassed windows. There can happen a situation when DefSubclassProc
ends with all subclassings removed, in this case it cleans up the
subclassing stack stored in a window property and frees it's memory. If
DefSubclassProc was called from SubclassWndProc, there will happen crash
because the subclassing stack is no longer valid. Anyone has a solution
for this?
- Filip
--- lib/comctl32/commctrl.c 15 Apr 2004 08:29:56 -0000 1.9
+++ lib/comctl32/commctrl.c 16 Apr 2004 23:32:26 -0000
@@ -1284,9 +1284,7 @@
}
stackpos = stack->stackpos;
stack->stackpos = stack->stacknum;
- ret = DefSubclassProc(hWnd,uMsg,wParam,lParam);
- stack->stackpos = stackpos;
- return ret;
+ return DefSubclassProc(hWnd,uMsg,wParam,lParam);
}