Window shape

Hi everyone can someone please help me on how to mask a form to a bitmap .

Thanx in advance.

Here's a nice tutorial: Win32 Window Skinning

gg

Thanx, I've tried it but not everything work in C++Borland wich I'm working in. I've even downloaded the full sample coding and tried to work it into C++ Builder but like I said not everything is working. If I can get help on how to do it in Borland C++ Builder it will be much appreciated.