Home/ Questions/Q 7090009
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-28T07:59:32+00:00

Is there any way to handle multi-touch in a class which extend NSView? currently

  • 0

Is there any way to handle multi-touch in a class which extend NSView? currently 1 touch with drag event is working now.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I know this is an old question, but if you want your NSView subclass to accept touch events (like in iOS, touchesBegan/Moved/Ended/Cancelled) and you are in OS X >= 10.6, you can put the following in your initWithFrame: method:

    [self setAcceptsTouchEvents:YES];
[self setWantsRestingTouches:YES]; // for thumb

    Then override the following methods:

    - (void)touchesBeganWithEvent:(NSEvent *)event;
- (void)touchesMovedWithEvent:(NSEvent *)event;
- (void)touchesEndedWithEvent:(NSEvent *)event;
- (void)touchesCancelledWithEvent:(NSEvent *)event;

    See the Cocoa Event Handling Guide for details

    • 0