Question

I would like to disable (in a VS2010 C program) the crash dialog window which pops up on screen when a GPF occurred (You know the xxx.exe as stopped working)

I tried on win2008 and win7:

 - SetErrorMode(SetErrorMode(SEM_NOGPFAULTERRORBOX)|SEM_FAILCRITICALERRORS);
 - try/catch (with SEH, but some parts of the code aren't wrapped in)
 - SetUnhandledExceptionFilter()

Nothing works… still with this damned window

Do I forget something ?

The only thing which is working is to modify the “DontShowUI” key in register base
(HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Windows Error Reporting)
but it’s just not clean, and I would prefer a “coding” solution (and I cannot change the register into my code !)

Do you have an idea ? (except fixing the program itself to avoid the GPF of course 🙂

Thanks…

note : Interesting, under Cygwin the crash dialog doesn’t appear !

Answer 1

The best way to disable the crash box is to remove whatever code is causing your program to crash. This box will never appear for a correct program.

Edit: As for what’s actually wrong with your call to SetErrorMode, it should be:

SetErrorMode(SetErrorMode(SEM_NOGPFAULTERRORBOX)
    |SEM_FAILCRITICALERRORS|SEM_NOGPFAULTERRORBOX);

or similar. I think you misread the blog article you cited in the comments.