Transparent Frame Background?

[Raylax]

How do I make the background of my frame transparent? Using 'Grab Desktop at Start' doesn't work how I want it to, if I move another window behind it the effect is lost (it looks like the window has been cut off at the edge of the app)

[stuckboy]

You can use the window shape to set the shape of a window to the shape of a specific active object... but thats about as close as you can get to what you're trying to do I think.