Adv Drawing

Hi, I was wondering if anyone could help.

I need to create an application that will draw over the top of a DirectX application. It could just be very simple things, like a line, or a circle, but ideally a transparent bitmap.

The idea is that the program is a bit like a trainer. It intercepts keystrokes, processes them, and then passes it on to the system and the DirectX program again.

So far, I have had no luck in painting over the DX app. Even code to get a straight line over the top of it would be useful!

BTW Dunno if this affects the code necessary but I do need the effects to be dynamic..

Please, help!

-psiclone