Roger Stoltz wrote: Rajesh R Subramanian wrote: I said a Window (the program) can have more than one Message Queue running I think this adds to the confusion. It looks like you're saying that a window is a program and of course it's not. I took the simplest example - a dialog application, where there's just one message queue and that holds the messages posted to that very window by the outside world. Roger Stoltz wrote: I interpret the OP's question in short terms as "does the message queue belong to a thread or a window" and the correct answer for that in equally short terms can only be "the thread". Which I mentioned as well, only with added information that there could be additional message queues without windows associated to them. I reckon we both have a way with our words, and we always get into discussions only to settle on the same boat after a while; saying: Oh yeah? You meant *that*. Right! Fun thing, if you ask me. :) “Follow your bliss.” – Joseph Campbell

My case it's pretty low. :( :~ I got to change my alias. :mad: Computer programming is an extraordinarily precise activity, be precise.

what u want to validate?

OK 5 - I overlooked this one. :) [add] Probably because vcredist is the first thing I suggest, when someone says my Visual C++ program works on my machine, but not on the client's. [/add] Nobody can give you wiser advice than yourself. - Cicero .·´¯`·->Rajesh<-·´¯`·. Codeproject.com: Visual C++ MVP modified on Thursday, May 22, 2008 2:38 AM

Sharda Did you find any solution to your problem? I am struggling with exactly same problem. Regards Sachit Jain Sachit Jain

thanks Iain, Actually i tried with both the options like g_MouseHook = SetWindowsHookEx(WH_MOUSE_LL, MouseProc , NULL,0); and g_MouseHook = SetWindowsHookEx(WH_MOUSE, MouseProc , NULL,GetCurrentThreadID()); Still in both the cases MouseProc is not called.