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  1. Qt
  2. QTBUG-33520

REG: Minimizing/restoring widget when flag FramelessWindowHint and attr. AA_NativeWindows is set does not restore widget.

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.3.0
    • 5.1.0 , 5.1.1
    • Widgets: Main Window
    • None
    • Windows 7
    • Set mapped for obscured 829b1d13b225e87b8a385397e2b53c7a9f8cda9e 28.10.2013), Reverted due to iOS breakge: 773610cc451bb2b4319da6567b21510022d08014 (release, 21.11.2013), fix backing store: 5adba7cba739a4befca86dca026753ea69605c31 (dev, 12.2.2014, 5.3)

    Description

      Worked in Qt5.0.1 but not anymore in Qt5.1.1. Tested also with latest stable from git (117880499754b14bbada9646b85feef066d7b959).

      Run the following program. Minimize the app from taskbar. Then restore it from taskbar -> app is not restored correctly, only a little white box can bee seen.

      #include "mainwindow.h"
#include <QApplication>
#include <QPushButton>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QMainWindow w;

    qApp->setAttribute(Qt::AA_NativeWindows);
    w.setWindowFlags(
        Qt::FramelessWindowHint
        |Qt::WindowMinimizeButtonHint
        |Qt::WindowMaximizeButtonHint   );


    QWidget *centralWidget = new QWidget(&w);
    w.setCentralWidget(centralWidget);

    QPushButton* b = new QPushButton(centralWidget);

    w.show();
    return a.exec();
}

      Attachments

        1. qtbug33520_diag.patch
          13 kB
        2. qtbug33520_linux.log
          29 kB
        3. qtbug33520_mac.log
          18 kB
        4. qtbug33520_windows.log
          18 kB
        5. qtbug33520.zip
          3 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36230 So much window flags are not accepted / working on Win32 / Windows 7

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-39220 Windows: Rendering issues in fullscreen when QGLWidget/native widget used inside QTabWidget and QMainWindow

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          replaces

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-37855 showFullscreen() renders any widgets transparent if QGLWidget is used

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-38033 Frameless window doesn't work (invisible) with Opengl Widget

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36396 Windows: Menu bar not visible (does not repaint) in QMainWindow fullscreen mode when QGLWidget is set as central widget

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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            People

              kleint Friedemann Kleint
              qtcomsupport Qt Support
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              Dates

                Created:
                Updated:
                Resolved:

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