[resolved] API Calls: multiple windows

API Calls: multiple windows

I am running multiple instances of a program (a). I want to be able to have a program that I am writing (b) find each of a's handles and be able to set focus on whichever window I choose.

I can't seem to figure out how to do it. After toying around for about an hour & searching the net (no help), I decided to come here... please tell me someone knows how to do this via API.

Basically I need 2 codes.

1) find each window handle for multiple instances of a program running
2) set focus to whichever handle i desire.
*as if it were clicked on the taskbar

It would be most beneficial if the code didn't create an array, but rather threw the handles into a listbox. It would be easier for me to learn from it that way.

Hope someone knows how to do this ;\ Thanks!

-Sean