Thank you very much.tonyw wrote:Added BZ for filecompare: #9248.
After reviewing the advice by other users I did some testing with a simple Reaction program. As long as WINDOW_AppPort is set to a valid message port in the window object, the program gets WMHI_ICONIFY messages when the window iconify gadget is selected and when Workbench is about to close. Since FileCompare is iconifying when you click the iconify gadget, it should also be iconifying when Workbench is about to close but it's not. I can't explain why but something is going wrong.