[SOLVED] Why OnKeyDown eventhandler show something strange at F12?

[egsuh]

I assigned just OnKeyDown event handler (doing nothing) to process a few function keys. Other function keys are OK, but when I press F12, the screen of attached file shows up. I just close the window, then program goes on. Isn't this a problem?

[egsuh]

I think this might have happened because I ran the application within IDE (flip between editor and form). When I ran compiled .exe file, no such thing occurred.

[Pascal]

When debugging F12 also pauses the program (At least on Windows with GDB).
The window you see is the position where the program stopped (Assembler). Press F9 and you are done.

[egsuh]

Oh I see. It stopped the debugging. Learning many things. Heartful thanks to you.

[pik33]

Can I switch this off?

This is very annoying while debugging fullscreen SDL application.
After f12 the applicatin stops responding while still covering all the screen and you cannot display any window over it, even the task manager The only solution is then logging out after ctrl-alt-del

[Cyrax]

See https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc786263(v=ws.10)

I don't know if changing UserDebuggerHotKey to different key than F12 works in Windows 10.

Can I switch this off?

This is very annoying while debugging fullscreen SDL application.
After f12 the applicatin stops responding while still covering all the screen and you cannot display any window over it, even the task manager The only solution is then logging out after ctrl-alt-del

Change the default value (0) of UserDebuggerHotKey to 0xFF to disable this feature.

[pik33]

Thank you, it works. (Win10x64)

[pik33]

After a big Win10 update I had to use regedit again as the value was reset to 00