window height keeps increasing every time #1
Description
Open PlayOnLinux, close it, open it, close it, open it, ..., the window height keeps increasing every time.
This is a simple bug. The developer should not rely on any fixed number to subtract or add. It should get the window size immediately after [setting window size and creating the window], and then compare the retrieved window size with set windows size to derive the OS/UI window size biase.
For example, you set window size to be {width:100, height:100} and create the window, then you get window size {width:100, height:128}, so you know there is an offset of 128-100=28, then you subtract 28 from window height when saving window size before exitting.