topic Re: MouseWheel event not being dispatched with the new 3.1 API? in ArcGIS API for Flex Questions

MouseWheel event not being dispatched with the new 3.1 API?

RoyceSimpson — Tue, 18 Dec 2012 15:09:50 GMT

I've got an app that needs to do some stuff when a map mousewheel event is dispatched. With the 3.0 API this worked fine but with the 3.1 API, the event isn't being dispatched. The map does zoom in/out when mousewheel is used but the mousewheel event simply never gets triggered.

Can anyone verify this? Is this now by design (cringe)?
-Royce

Re: MouseWheel event not being dispatched with the new 3.1 API?

SarthakDatt — Tue, 18 Dec 2012 16:19:28 GMT

Hey Royce,

Thanks for reporting this. It is a regression bug for version 3.1.

As a workaround, you can add the event listener with useCapture = true:

myMap.addEventListener(MouseEvent.MOUSE_WHEEL, myMap_mouseWheelHandler, true);

Here's more information about the capturing phase:

http://help.adobe.com/en_US/Flex/4.0/UsingSDK/WS2db454920e96a9e51e63e3d11c0bf69084-7cdb.html#WS2db454920e96a9e51e63e3d11c0bf69084-7cde

Hope that helps.

Re: MouseWheel event not being dispatched with the new 3.1 API?

RoyceSimpson — Fri, 10 Dec 2021 21:09:11 GMT

Hey Royce,

Thanks for reporting this. It is a regression bug for version 3.1.

As a workaround, you can add the event listener with useCapture = true:
myMap.addEventListener(MouseEvent.MOUSE_WHEEL, myMap_mouseWheelHandler, true);
Here's more information about the capturing phase:

http://help.adobe.com/en_US/Flex/4.0/UsingSDK/WS2db454920e96a9e51e63e3d11c0bf69084-7cdb.html#WS2db454920e96a9e51e63e3d11c0bf69084-7cde

Hope that helps.

Great, will do, thanks.

UPDATE:
Worked. Thanks again.