I tried to set break point on USER32.PostMessage. After setting the breakpoint and continue the execution, the ollydbg hangs(1.09c). Did I do something wrong? I am Sorry if it is a foolish question.

I want to know who posts which messages in the target application. If there is anyone knows another good way, please let me know. It would be great help.

Regards.

--
Taeho Oh ( ohhara@postech.edu, ohhara@plus.or.kr ) http://ohhara.sarang.net
("http://ohhara.sarang.net
")
Postech ( Pohang University of Science and Technology ) http://www.postech.edu
("http://www.postech.edu
")
PLUS ( Postech Laboratory for Unix Security ) http://www.plus.or.kr ("http://www.plus.or.kr")

That ploblem happen if you try to set breakpoint on main module,
try on user32.dll module ,on PostMessage right click and choose Togle breakpoint .
Conditional breakpoint work well if want to know which code call api.