[C++] SpeedHacking Using Timer API

I googled a bit, but I can only find out that the speed hack uses the timer API call in order to speed of the application. If anyone could fill me in a bit, I would love it.

For what do u need a speedhack ? I mean what game ?
Because i wont know how to do it in WarRock, but i do know it for CSS/CS1.6
Because ...
Css and Cs1.6 has SDK, so its easyer to do engine hooking

Dont even know if u can create a speedhack in D3D, for me, D3D is the bad side of life and C++/ASM the good side :P

=/ I mean to make a speed hacking using the timer API call.

Well how do you think Dark Byte made cheat engine a speed hack for all games? Do you think that he went and got every single game and then made an engine hook that will always work for every single one?

QueryPerformanceCounter Hook