Emulate sending of DirectInput messages?

Is it possible in Blitz to emulate keypresses or button presses from a connected pad?

I guess I need to send DirectInput messages the the relevant HWnd, and this would be via DLL.

Is there a DLL available to do this already (I know BlitzSys has a PostMessage() function which may be able to do it, but I`m lost at which API I need to be using to send the correct messages...

Thanks in advance...

Any ideas?

I think this one might be beyond the scope of Blitz programming. I know what you're getting at, but it sounds very much like you'd have to delve into device driver programming in C++.