Hi, I am very new to Krita. The issue I'm having immediately is that I have my mouse wheel customized to output keystrokes to change brush size (ie "[ ]", the shortcut keys), which works fine in every other application I've tested, but in Krita this is completely ignored and the mouse wheel just zooms. I tried going into the settings and disabling the canvass zoom shortcut for mouse up and mouse down, and now it just does nothing.

Does Krita somehow read the hardware device input directly? The application should not be receiving mouse wheel up and down inputs at all but rather the keystrokes I've mentioned, as every other application I've tried does.

Is there perhaps some way I can circumvent this behavior? It also appears that I can't manually set these shortcuts to mouse wheel in Krita's settings.

No, the canvas input system was implemented to deal with the main system not being able to deal with events like that. We want to make the whole thing make sense, but have noone with any time at all to do the programming.

Also, if Krita is getting wheel events from the mouse, it's not because Krita reads the hardware directly or something like that. It's more likely either an issue in Qt, or an issue in the driver. We only have special code for tablet events, the rest is handled by Qt.

Thanks for taking time to respond. I'm sorry I can't help you out on the development side. From an end-user standpoint though, is there anything I might be able to do about this or do you think I'm just stuck with the behavior?