I have seen this 'failure to comply' before. Even after quadruple checking everything. I ended up catching the right click in the control and 'manually' posting the message to the parent. Now it works fine. A little extra work to make a derived CListBox that catches the right-click, but that is what I really needed. C++/MFC/InstallShield since 1993, breathing air since 1963

Install Visual Studio Service Pack 5 - it's fixed. #include <beer.h>

I have to admit I don't really understand everything being explained in the thread, but no worries: it works now. I'll just give a short report for any interested parties too lazy to check the thread you mentioned: PROBLEM: Stop CListCtrl column headers from being resized. SOLUTION: Let your view handle the HDN_BEGINTRACK message and have it return TRUE. void CMyList::OnBegintrack(NMHDR* pNMHDR, LRESULT* pResult) { HD_NOTIFY *phdn = (HD_NOTIFY *) pNMHDR; *pResult = TRUE; } BUG: Something about the class wizard messing up and another thing about unicode and ansi, which results in your handler never being called. FIX: Edit your message map manually. First remove: ON_NOTIFY_REFLECT(HDN_BEGINTRACK,OnBeginTrack) And instead add: ON_NOTIFY(HDN_BEGINTRACKW, 0, OnBegintrack) ON_NOTIFY(HDN_BEGINTRACKA, 0, OnBegintrack) That's it. Thanks 4 the help, guys.

Thanks. This was exactly the type of solution I was looking for. Just a note though: I had to use _TrackMouseEvent instead of TrackMouseEvent. Apparently the regular TrackMouseEvent is not supported on all Windows platforms (mine is XP and the compiler threw an 'undeclared identifier'). But you can still use _TrackMouseEvent; it just calls TrackMouseEvent if it is defined and emulates it if not. Thanks again.

separate threads. That somehow seems too complicated. No, you should use threads for your problem. Because you just need a worker thread, so you can use AfxBeginThread. Ex: Declare: static UINT SaveThread(LPVOID lParam) Implement: UINT SaveThread(LPVOID lParam) Calling: AfxBeginThread(SaveThread,yourParam); Hung Son A Vietnamese student i-g.hypermart.net dlhson2001@yahoo.com

Perfect. Thanks a lot.