creating app buttons

[uzziah0]

I want to add a button to my app, I am thinking, a function call to create an area that when clicked would jump to some callback function. I could use this to change the image in the area just clicked, and perform what ever action I want due to the button press. I think I need to use CreateWindow() to do this, but I'm not figuring much else about this. I have not been able to find an example that is simple and straightforward for C on a WM5 device. If anyone knows of an example or simple explanation that would help, I'd appreciate it.