XnView Software

Current mouse shortcuts / hotkeys:

LMB+RMB (and RMB+LMB) / Numpad / - fit image to window, large only
LMB+MMB (and RMB+MMB) / Ctrl+Numpad / - lock zoom
LMB+wheel (and RMB+wheel) - prev./next image
Numpad * - 100% zoom
Numpad numbers - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 - no action
Numpad . - no action

Possible actions for different mouse combinations (RMB+x bug will be fixed soon(?)) and hotkeys:

RMB+LMB
RMB+MMB
RMB+wheel
LMB+RMB
LMB+MMB
LMB+wheel
Numpad /
Numpad *
Numpad numbers - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Numpad .

- fit image to window, all
- 100% zoom
- lock zoom
- other 'auto image size' options
- switchig between all/some/custom 'auto image size' options
- use/don't use high quality
- move (enlarged) image
- center (enlarged) image
...

All options could be configurable.
There could be different options for audio/video player (e.g. play/stop/mute/volume...).
Several actions for Numpad keys and mouse 'shortcuts' could be the same.

More suggestions are welcomed.

I'll move 'results' of this topic to my "hotkeys list".