# HG changeset patch
# User bsmith@81767d24-ef19-dc11-ae90-00e081727c95
# Date 1324982858 0
# Node ID 9b26000344739e57f9d75406884143587cfff963
# Parent  fbe9028af34199635e4ef7456e52cc97f4b404b1
Safety check in _lookup_icon() on Windows to make sure we don't try to add an invalid icon handle to the image list.

diff -r fbe9028af341 -r 9b2600034473 win/dw.c
--- a/win/dw.c	Tue Dec 27 00:15:51 2011 +0000
+++ b/win/dw.c	Tue Dec 27 10:47:38 2011 +0000
@@ -8305,6 +8305,10 @@
    int z;
    static HWND lasthwnd = NULL;
 
+   /* We can't add an invalid handle */
+   if(!hicon)
+      return -1;
+      
    if(!hSmall || !hLarge)
    {
       hSmall = ImageList_Create(16, 16, ILC_COLOR16 | ILC_MASK, ICON_INDEX_LIMIT, 0);