Application Hooking

[Elangler]

I believe it is called hooking. I'm not actually sure. I have a trivia game I am programming. I would like to be able to have this game grab another application as the means of playing. An example would be like an IRC trivia bot. I am wanting my game to work like that, except in the chat section of a voice program, ventrilo. Is there anyone who could link me to a tutorial or give me the right direction to poke in. The only thing I can find is hookinh DirectX/OpenGL dlls for video game hacks.

Thank you.