Additional DOSBox Command-Line Parameters

It’s been suggested in Issue #359, but it would be handy if there were a field for additional command-line parameters/arguments for DOSBox games.

Often, a game requires only one or two DOSBox settings changed from the base config to work properly, and having to duplicate the entire .conf for minor tweaks can become a nightmare to manage down the line. Being able to pass something like “-set mididevice=mt32” or “-set mapperfile=JAZZ.map” to DOSBox is much simpler.

I currently get around this by creating various batch files and using those in the "Custom DOSBox Version EXE Path" field. Here’s my MT-32.bat, for example:

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@ECHO OFF
CD ..
dosbox.exe %* -set mididevice=mt32

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