Has anyone experienced a lockup when hidden windows are used with C11?
Open app frame
Open MDI window1
Open MDI window2, hide it
now when you switch between apps and click on window1 the app will freeze, sometimes. It usually takes 2 or 3 app switches for it to freeze up. Replicated by others on Win10, and Win 7.1. Seems to lock up more frequently if the app is partially covered by the other program.
I have to ship a release next week and not sure how to get around this issue. Worked fine in C5.5. It would take a large effort to change the structure.
threader.zip (829.9 KB)
Steps to reproduce freeze:
Open threader app
click on BaseThread button (creates window1)
click on BASEFREEZER (creates window2)
now click on another app and then click on the airflow arrow gif. Usually within 2 or 3 flops back and forth the clarion program will freeze.