Detecting the direction of the mouse scroll.

[Raymond88]

Hi Forum Members.

I'm trying to detect the direction of the mouse scroll.

I tried to do something like this, but I don't understand how event.getScrollDelta() works.

This is something like an int variable, but in the source code I did not understand what it returns.

My code:

@SubscribeEvent
    public static void detectScroll(InputEvent.MouseScrollEvent event) {
	if (event.getScrollDelta() == DOWN) {
		// do something
		}
	else if(event.getScrollDelta() == UP) {
		// do something else	
		}
	}

 

[Luis_ST]

if the scrollDelta is positive it is scroll up, if it is negative it is scroll up
means:

if (event.getScrollDelta() > 0) {	
	// UP			
} else if (event.getScrollDelta() < 0) {
	// DOWN					
}

 

Edited December 8, 2021 by Luis_ST

[Raymond88]

1 hour ago, Luis_ST said:

if the scrollDelta is positive it is scroll up, if it is negative it is scroll up
means:

if (event.getScrollDelta() > 0) {	
	// UP			
} else if (event.getScrollDelta() < 0) {
	// DOWN					
}

 

Thanks for help, it's worked