I just tried this out (again).
Is it possible for the text tool to only grab printable characters?
For example, I use the 'my calculator' key to repeat the last filter,
and I've remapped NumLock to XF86Save and use it for saving the image.
Neither of these produce a printable character, but the text tool
prevents these from working.
Currently, combinations including Control key are the only ones not grabbed.
Gimp-developer mailing list