Invert mouse wheel response over a slider

[gorangrooves]

I am trying to invert the response of a mouse wheel so that when the mouse wheel is pushed up, the values of a knob/slider decrease.
Is it possible to do this, and if so, how?

[ally]

Do you want this behavior only for the mouse wheel? So clicking and dragging moves the slider values normally?

[gorangrooves]

@ally Actually, all of it could be reversed, click+drag, and scroll wheel.

[ally]

@gorangrooves You could do it a few different ways depending on what exactly you're looking for/what your setup is... If you're using a sprite sheet, you could export it in reverse order, then in the slider's custom callback, set whatever it controls to the max possible value minus the current value (i.e. for a 0 to 100 knob, "100-value").
You could also put an invisible control on top of it (a slider with an empty png as its image, or a script panel if you prefer), then in the invisible slider's custom callback, set the visible slider's value to max - current value. Like this:

const var visibleSlider = Content.getComponent("visibleSlider");
const var invisibleSlider = Content.getComponent("invisibleSlider");

visibleSlider.set("min", 0.0);
visibleSlider.set("max", 100.0);
invisibleSlider.set("min", 0.0);
invisibleSlider.set("max", 100.0);

inline function oninvisibleSliderControl(component, value) {
	if (value) {
		visibleSlider.setValue(100-value);
	}
};
Content.getComponent("invisibleSlider").setControlCallback(oninvisibleSliderControl);

[gorangrooves]

@ally Thanks so much for this! I'll be playing around with this and report how it goes.

[gorangrooves]

@ally The script worked great, and I managed to hook it up to a controller as well. Thanks a lot for your help!

[ally]

@gorangrooves Awesome! No problem :)