cocoa - Odd NSView display performance -

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i adding custom nsview nswindow's content view. whenever go interact subviews of new nsview (some nstextfields, nsmatrix, nspopupbutton , nsbutton), specific part of view seems disappear , show subview.

the parts of view go missing never return. know causing this?

thanks in advance.

looks common problem. ended having add view child window of application's window.

this link useful: http://blog.stuntaz.org/cocoa/2009/11/03/nswindow-overlay.html


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