NSCursor is changed when there is an overlay NSView over others

Question

chengzhu.hkc OP

Created Jan ’18

Replies 2

Boosts 0

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all:

I have added two NSViews into the window. View A is on the top, and View B is under the A. On the View B, there are textfields, buttons, and so on. The view A is overly view, there is nothing but on imageView. When I move mouse on the View A, the mouse cursor will change to hand cursor if I mouse to the position where buttons stay at(View B). It seems that the mouse cursor passthrough from View A to B, the mouse cursor is changed by View B.

Can we prevent the passthrough from A to B?

Thanks very much.

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Answer 1

Claude31 OP

Jan ’18

Yes, events are sent to next view until handled.

You could implement trackingRectangles in ViewA and a cursorUpdate func, to trap the message.

override func cursorUpdate(with event: NSEvent) {

//

}

See for details:

h ttps://developer.apple.com/library/content/documentation/Cocoa/Conceptual/EventOverview/EventObjectsTypes/EventObjectsTypes.html#//apple_ref/doc/uid/10000060i-CH4-SW4

for defining trackingRect :

h ttps://stackoverflow.com/questions/32447739/changing-nscursor-for-nsview-above-an-nstextview

0

Answer 2

Smithers OP

Mar ’21

That doesn't work. AppKit still seems to handle any mouse movement over a NSTextField even if there's another view on top.

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