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objective-ccocoamacosnsview

How to find if the mouse is over a view

I need to find if the mouse position is inside an NSView's rect.

I'd use NSPointInRect(point, rect), but I'd need to convert the rect coordinates to screen coordinates and I'm not sure how. Any help would be much appreciated!

Solution

  • Use NSView's convertPoint:fromView: method with fromView as nil to covert a point in window coordinates to a view's coordinate system.

    After converting the mouse point to the view's coordinate system, I would use NSView's mouse:inRect: method instead of NSPointInRect as the former also accounts for flipped coordinate systems.

    Alternatively, you could use a Tracking Area Object.