how to make the activex control accept file drag and drop?

[cong.zhang]

hello everyone:
I develop a ActiveX control use ATL, the control will run in IE and
perform as UploadControl, I hope it can catch the WM_DROPFILES event, but I
can't do that, I have use "m_bWindowOnly = true;", but nothing changed,the
control work as I expected in activex control container, what should I do,
something is wrong or I forgot to do something?
I don't want to use ole way, I just want to capture the WM_DROPFILES
event like original WIN32 program, what should I do, or told me the way to
solve the problem.
cong zhang