Syntax Highlightning in tuiTextBox

[Der Wanderer]

Piping to a file doesnt require the filelistener.

Just

"Run >myfile.txt mytool"

But then you get the result once i is back, not while it is generated. If this is ok for your purpose, then just read the file.
You can fill the listview async, using

ntui_PostEvent{*listView,#TUILVEV_APPEND,0,*string.b}

This is threadsafe.

But if you read from file you dont need this.
You can set a notification wie dos.libary StartNotify.