Is there a way to trigger gesture events on Mac OS X?

Question

I want to trigger multitouch gesture events on Mac OS X. Is there a way to do this? Mouse or keyboard events can be triggered with CGEventCreateMouseEvent and CGEventCreateKeyboardEvent. Is there similar low level function for multitouch events?

Rok

Your suggestion is not working. I've tried this code:

- (void)rotateWithEvent:(NSEvent *)event {
    NSLog(@"ROTATE");
}
-(IBAction)button:(id)sender {
    CGEventSourceRef eventSource = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
    CGEventRef event = CGEventCreate(eventSource);
    CGEventSetType(event, NSEventTypeRotate);
    CGEventPost(kCGHIDEventTap, event);
    NSLog(@"POST EVENT");
}

But function rotateWithEvent never gets called. Am I doing something wrong?

Has anyone found a solution for this??? I am struggling with a similar problem a couple of days already, but nothing seems to work :( — Nostradamus, Oct 16 '12 at 08:06

score 3 · Answer 1 · answered Mar 22 '10 at 01:47

You could probably use CGEventCreate to create a gesture event. The event types "officially" defined for CGEventCreate don't include gesture event types, but you could pass in the values defined in NSEvent.h:

NSEventTypeGesture
NSEventTypeMagnify
NSEventTypeSwipe
NSEventTypeRotate
NSEventTypeBeginGesture
NSEventTypeEndGesture

The values for non-gesture types seem to map directly to the kCGEvent<TYPE> values in CGEventTypes.h so it's reasonable to expect the gesture event types will work:

CGEventSourceRef eventSource = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
CGEventRef event = CGEventCreate(eventSource);
CGEventSetType(event, NSEventTypeMagnify);
//continue to set up the event

could you give more details about what data to "set up" ? – Alexey F Nov 08 '12 at 10:29 — Alexey F, Nov 08 '12 at 10:29
how to set up this event – Michał Ziobro Aug 25 '16 at 21:13 — Michał Ziobro, Aug 25 '16 at 21:13

score 0 · Answer 2 · answered Feb 25 '12 at 00:32

0

I wonder if you try posting a NSEventTypeBeginGesture before posting the rotate event?

answered Feb 25 '12 at 00:32

wheels53

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Is there a way to trigger gesture events on Mac OS X?

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