Switchable Graphic Cards: Which Graphic card will OpenGL choose

OpenGL OpenGL: Basic Coding
1

Hi,

I am just starting OpenGL programming.I am using a Lenovo Laptop,Windows 7 32-bit,with switchable graphic card(ATI Raedon and Intel). I want to know which graphic card will OpenGL work on.If it chooses Intel… How to make it choose ATI Raedon.

Thanks,
Harsha.