Add back lost treatment of HWND_TOPMOST.

diff --git a/windows/message.c b/windows/message.c
index 9059185..ed19b36 100644
--- a/windows/message.c
+++ b/windows/message.c
@@ -1563,7 +1563,7 @@
 
     *pRes = 0;
 
-    if (hwnd == HWND_BROADCAST)
+    if (hwnd == HWND_BROADCAST|| hwnd == HWND_TOPMOST)
     {
         *pRes = 1;