I want to create a hole in my GUI, and the discussion above helps me to reach near to my goal, but unfortunatly, i cannot make this running, can any one see am i calling the DLL in a right Manner.
Thanks In advance.
It's also possible (and simpler) to do this by making a specific color in the window completely transparent, which causes it to allow click-throughs.
You can see an example of how to do this here, although that was just quick and dirty code, so it needs some cleaning up. I don't even remember if the color which should be transparent is set up as an input there - http://forums.ni.com/t5/LabVIEW/Darren-s-Weekly-Nugget-04-17-2006/m-p/352929?view=by_date_ascending#...
My original desire to make a funny shaped window ended up evolving into a white paper (with example code), which you can view and download here:
The example allows the user to select a black and white bitmap, which then clips the window to match the bitmap.
It should contain everything you need.