changing user's resolution

i dunno if i can do this with an api but i need to change the resolution of the users screen while he /she is running the program (when the program starts the users computer will revert to 640by480 resolution) how can i do this .. THANX

-RC

I have found some example how to change resolution on this address: http://www.mentalis.org/tips/tip67.shtml

I hope it will be usefull for you