Disable Windows critical error handler #5828
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In particular, this suppresses the "execution cannot proceed because X.dll was not found" dialog, instead returning an exit code. Calling this at program startup is already recommended best practice for Windows applications.
kit-ty-kate
approved these changes
Feb 12, 2024
rjbou
approved these changes
Feb 12, 2024
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Let's get it merged before that screenshot of the dialog grows any further! |
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When the WIndows loader cannot find DLLs, the default, very very legacy behaviour is to display a dialog such as this:
This dialog is problematic, as it's part of the loader, so the application itself is not able to handle this itself. It's doubly problematic for us, as it's blocking.
The convention is that calling applications are expected to disable this error handler. New processes inherit this setting, which causes the loader to suppress the dialog box and instead return an exit code. This is documented best practice (see the notes for
SEM_FAILCRITICALERRORSin SetErrorMode on MSDN).