App to view source and assembler files?

[TimN-MK]

What app do folk use to view source file?
I have used Brackets and Code Writer... but neither of these can be called via the "View C Code" tabs in FC.
Code Writer is a Win10 integrated app, can't seem to locate a call parameter for this....
and Brackets can be called but only displays a "New" file (these care the call parameters: $(outdir)$(target).c
and (outdir) correctly points to my sources.
Thanks

[Steve-Matrix]

I personally use TextPad, and I'm not familiar with the other tools you mention.

It seems Code Writer has some restrictions that prevent it from working. I found this from a search asking how to open a file via the command line:

I feel your frustration but it's not a restriction imposed by us. It's due to Microsoft putting all UWP apps like Code Writer in a security sandbox that prevents file access unless the user has previously opened a file via a dialog. It's really annoying for our kind of app but unfortunately is managed by the core Microsoft file APIs we call, so we are affected downstream by it.

For Brackets, this might help: https://blog.founderatwork.com/using-br ... n-windows/