Can I create a verb to pass multiple files to a program?

[jiangzhenjerry]

I'm not sure if the title is clear enough, so I will try my best to explain it with an example. Let's say I created a context menu item to play .mp4 files with MPV player:

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Filter1=*.mp4
Filter1_MPV=mpv.exe "%1"

Now if I multi-select two files - "1.mp4" and "2.mp4" - from the file list, right click on the selection, and choose "MPV (Internal)", the following commands are executed:

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mpv.exe "1.mp4"
mpv.exe "2.mp4"

and therefore two MPV windows will pop up simultaneously, one playing "1.mp4" and the other playing "2.mp4".

My question hence is: is it possible to write a verb such that it would execute:

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mpv.exe "1.mp4" "2.mp4"

This way, only one MPV window will pop up, with the two files added to its playlist. This is not unique to MPV, but many other media players and applications too.

Thank you and excuse me if I'm daydreaming It may as well be a limitation of Windows File Explorer.

[petermad]

2jiangzhenjerry
Try and change:

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Filter1_MPV=mpv.exe "%1"

to:

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Filter1_MPV=mpv.exe "%2"

or:

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Filter1_MPV=mpv.exe %2

Open
Program used for the 'open' action. This is always the default verb (used when pressing ENTER) for internal associations. You need to put %1 or "%1" (or %2) behind the program name so the file is passed as a parameter. The difference between %1 and %2 only appears when right clicking on multiple files. Choosing an internal command with %1 will open all selected files in separate editors, while %2 will pass them all to the same program. This will of course only work when that editor can accept multiple files as parameters

[jiangzhenjerry]

@petermad

You save my life Thank you so much for your help! I should have read the Help file more carefully....