Thank you.
My question more directed into "how do i access the projection matrix?" because the only method i could think of before was using a shader. But i already found a better solution:
Use a material for the view with an event that modifies the matProj with the help of the functions inluded with the d3d9.h and set the material flag ENABLE_RENDER
The event will be called right after the matrices are calculated so i can change them.

[Problem solved]