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robelkin/gist:4260555

Created December 11, 2012 17:44
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gistfile1.m
UIPinchGestureRecognizer *pinchRecogniser = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchHappened:)];
[pinchRecogniser setDelegate:self];
[self.graphScrollView addGestureRecognizer:pinchRecogniser];
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