In Pinta-1.4-preview-20120908 on Windows XP testing bug 988278 and I have found another problem:
1. Open text editor and type in some text like: test
2. Save file in text editor, but name it: test.png
Note: I know this is text file, just want to test what happens if I open text file in Pinta.
3. File | Open and mark fake test.png file and click Open.
4. It opens an error message "Could not open file..."
5. Now switch to text editor (or any other program) and switch back to Pinta. The error message disappeared (actually hidden behind other windows) and it is impossible to continue to work in Pinta until all of the programs are minimized, to get "error message" window. This is classical "escaping window" problem. In my humble opinion, no window should escape main Pinta program. This is not a big problem for geeks, but for non-geeks this looks like Pinta has frozen, because it is not responding to clicks.
I've pushed a fix for this: https:/
This fixes issues with being able to close the Open File dialog while the error dialog was still open. However, I've never been able to reproduce the escaping window issue, so let me know if you need me to make a Windows build available to test this.