hhctrl.ocx - null pointer bug

[Juan Lang]

Hi Jaroslav,

-    if (!*caption) caption = info->pCHMInfo->defTitle;
+    if (!caption) caption = info->pCHMInfo->defTitle;

I suspect a better fix would be:
+    if (!caption || !*caption) caption = info->pCHMInfo->defTitle;

That is, either a NULL caption or an empty one results in
info->pCHMInfo->defTitle getting used.
--Juan