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Editorial Team
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Asked: 2026-05-26T05:38:43+00:00

I hope to access all gui components on a window using tag. But I

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I hope to access all gui components on a window using tag.
But I found that some components are in the subview of the window, so 

NSButton *aButton=(NSButton*)[self.window.contentView viewWithTag:tag];

will return 0x0, I have to change super view of the button from ‘self.window.contentView’ to the subview that includes the NSButton

Is there general way to access all gui objects on a window using tag, it will recognize and set the correct super view of each gui component when I use 

NSObject *a=(NSObject*)[recognizedSuperView viewWithTag:tag];

to access them?

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1 Answer

  1. Editorial Team

    viewWithTag: only returns direct subviews that have a tag set. If you want to navigate the view hierarchy, then you should implement a recursive method to do so, but be aware that you could find the same tag value in many possible locations in the tree.

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