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[QOpenGLWidget] Output image in manwindow and separated float window

  • Hello!
    Now I use QOpenGLWidget subclass for output images in application main window, after user select region of interest I spit main window and output selected area also on QOpenGLWidget subclass.
    But user wants view selected area in separated window, I create widget based on QDialod, add my QOpenGLWidget subclass and add images on it, split main window disabled.
    Unfortunately I see only white square on float window, selected area output on main window with another images.
    Can I use QOpenGLWidget subclass on main window and separated float window at one time?
    Thank you and excuse my bad english.

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