QML program doesn't minimize

[Lucijan]

Hello, I have a small fullscreen program which doesn't minimize properly. I can get the program to minimize in Qt 5.0.2 but not in 5.1.0. Everything is fine in Qt Creator, yet when I deploy 5.0.2 works, but 5.1.0 doesn’t.

I have noticed that 5.0.2 requires d3dcompiler_43.dll but 5.1.0 doesn’t, and the 5.1.0\mingw48_32\bin folder doesn’t contain that file at all, and it’s also missing libEGL.dll and GLESv2.dll which were present in 5.0.2. I found them in the Tools\QtCreator\bin folder.

I have a small program which shows what happens, but you will have to deploy it first:

import QtQuick 2.0
 
Rectangle {
    width: 360
    height: 360
    Text {
        id: minText
        text: qsTr("Minimize")
        anchors.centerIn: parent
        MouseArea {
            anchors.fill: parent
            onClicked: {
                QtQuick2ApplicationViewer.showMinimized();
            }
        }
    }
 
 
    Text {
        id: quitText
        text: qsTr("Quit")
        anchors.left: minText.right
        anchors.leftMargin: 10
        anchors.verticalCenter: minText.verticalCenter
        MouseArea {
            anchors.fill: parent
            onClicked: {
                Qt.quit();
            }
        }
    }
 
}

import QtQuick 2.0
 
Rectangle {
    width: 360
    height: 360
    Text {
        id: minText
        text: qsTr("Minimize")
        anchors.centerIn: parent
        MouseArea {
            anchors.fill: parent
            onClicked: {
                QtQuick2ApplicationViewer.showMinimized();
            }
        }
    }
 
 
    Text {
        id: quitText
        text: qsTr("Quit")
        anchors.left: minText.right
        anchors.leftMargin: 10
        anchors.verticalCenter: minText.verticalCenter
        MouseArea {
            anchors.fill: parent
            onClicked: {
                Qt.quit();
            }
        }
    }
 
}

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Here’s the main.cpp file:

#include <QtGui/QGuiApplication>
#include "qtquick2applicationviewer.h"
 
#include <QQmlContext>
 
int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
 
    QtQuick2ApplicationViewer viewer;
    viewer.rootContext()->setContextProperty("QtQuick2ApplicationViewer", &viewer);
    viewer.setMainQmlFile(QStringLiteral("qml/MinimizeTest/main.qml"));
    viewer.showFullScreen();
 
    return app.exec();
}

#include <QtGui/QGuiApplication>
#include "qtquick2applicationviewer.h"
 
#include <QQmlContext>
 
int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
 
    QtQuick2ApplicationViewer viewer;
    viewer.rootContext()->setContextProperty("QtQuick2ApplicationViewer", &viewer);
    viewer.setMainQmlFile(QStringLiteral("qml/MinimizeTest/main.qml"));
    viewer.showFullScreen();
 
    return app.exec();
}

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This only happens if the program is set to showFullScreen(), but doesn’t happen if showExpanded() is used.

[wysota]

Is your 5.1.0 built against ANGLE or OpenGL?

[Lucijan]

Is your 5.1.0 built against ANGLE or OpenGL?

I am using Qt 5.1 MinGW (and also 5.0.2 and 5.1.1), so OpenGL. The OS is Win7 x64.

[Lucijan]

Can anyone trying deploying the above program and test it with Qt 5.1? I'd really like to know if it's my mistake (most likely it is) or if it's a bug in Qt.