After Step
This will call a function before returning to MrDebug.
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This option will call a function that you specify, before returning to the
MrDebug. This ideal if you are using a graphics application. This function
may be used to set the text mode so that MrDebug will appear when your
program comes out of graphics mode.

█▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ After Step Definition ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀█
█ Expression:
█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄█


Whilst running in graphical mode you should have Force application into
80x25 window set to off.