Using the capabilities of winExtras when working with QML

winextras, qt, qml, TaskbarButton, ThumbnailToolBar, JumpList

Some time ago I wrote several articles about using the QtWinExtras library, which opens access to special features that are available only for Windows. Now I want to say a few words about how to repeat, too, using QML. For this we need to create a Qt Quick project, connect the winextras module in the project

import QtWinExtras 1.0

And use 3 objects: TaskbarButton to create a progress bar and manage it, ThumbnailToolBar for work with buttons on the pop-up window of the taskbar and JumpList (for working with jumpList). Also add FileDialog for the full work of jumpList.

For TaskbarButton, you need to set the id properties (to access this object from outside), progress.visible: true. Additionally, you can set the overlay.iconSource icon.

In ThumbnailToolBar we create the ThumbnailToolButton (from one to seven) buttons, set the icons and write the click processing.

In JumpList, the recent section is visible to show the last opened files and frequent to display frequently opened files.

    JumpList {
        id: jumpList
        recent.visible: true
        frequent.visible: true

Do not forget that the file extensions that fall into the jumpList must be registered in the registry. Therefore, add the function associateFileTypes () to the main file, as shown in the previous article .

Another curious possibility is the setting of the transparency of the window. To do this, you need the DwmFeatures object. Its blurBehindEnabled property makes the window transparent if its value is true. If you set it to false, the background color becomes black. I also note that the transparency can be set using the opacity property of the Window object. It differs from blurBehindEnabled in that the latter can have only 2 states (transparent and opaque) and makes only the main part of the window transparent (without widgets placed on it), while opacity sets the degree of transparency and makes the whole window transparent with all the widgets And a frame. Another 4 leftGlassMargin, rightGlassMargin, topGlassMargin, and bottomGlassMargin properties are responsible for the size of the extra margin from the left, right, top, and bottom side of the window, respectively. Indentation values ​​are specified in pixels. The default values ​​are 0. I do not see the application application in these properties, but I wrote about them for completeness.


import QtQuick 2.6
import QtQuick.Window 2.2
import QtQuick.Controls 2.0
import QtQuick.Dialogs 1.0
import QtWinExtras 1.0

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello WinExtras")
    DwmFeatures {
        id: dwmFeatures
        blurBehindEnabled: true
        leftGlassMargin : 10
        rightGlassMargin : 10
        topGlassMargin : 10
        bottomGlassMargin : 10
        excludedFromPeek : false
        peekDisallowed : false
        flip3DPolicy: QtWin.FlipExcludeBelow

        height: 100
        text: "button"

    TaskbarButton {
        id: taskbarButton 
       //overlay.iconSource: "loading.png" 
       overlay.accessibleDescription: "Loading"
        progress.visible: true
        progress.value: 50

   ThumbnailToolBar {
        ThumbnailToolButton { iconSource: "r.png"; tooltip: "Next"; onClicked: taskbarButton.progress.value = taskbarButton.progress.value+1 } 
       ThumbnailToolButton { iconSource: "l.png"; tooltip: "Prep"; onClicked: taskbarButton.progress.value = taskbarButton.progress.value-1 }
        ThumbnailToolButton { iconSource: "pause.png"; tooltip: "Pause"; onClicked: taskbarButton.progress.setPaused(!taskbarButton.progress.paused) }
        ThumbnailToolButton { interactive: false; flat: true }
        ThumbnailToolButton { iconSource: "open.png"; tooltip: "OpenFile"; onClicked:}
        ThumbnailToolButton { iconSource: "exit.png"; tooltip: "Open"; onClicked: Qt.quit() }

    JumpList {
        id: jumpList 
       recent.visible: true 
       frequent.visible: true
        //tasks.visible: true 

    FileDialog {
          id: fileDialog
          selectFolder: true
          title: "Please choose a file"
          folder: shortcuts.home
          onAccepted: {
              console.log("You chose: " + fileDialog.fileUrls)


#include <QFileInfo>
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QDir>
#include <QSettings>

static void associateFileTypes(const QStringList &fileTypes)
    QString displayName = QGuiApplication::applicationDisplayName();
    QString filePath = QCoreApplication::applicationFilePath();
    QString fileName = QFileInfo(filePath).fileName();
    //qDebug() << displayName << filePath << fileName;
    QSettings settings("HKEY_CURRENT_USER\\Software\\Classes\\Applications\\" + fileName, QSettings::NativeFormat);
    settings.setValue("FriendlyAppName", displayName);
    foreach (const QString& fileType, fileTypes)
        settings.setValue(fileType, QString());
    settings.setValue("FriendlyAppName", displayName);
    settings.setValue(".", QChar('"') + QDir::toNativeSeparators(filePath) + QString("\" \"%1\""));
int main(int argc, char *argv[])
    QGuiApplication app(argc, argv);
    app.setApplicationDisplayName("QtWinExtras Test");
    QQmlApplicationEngine engine;
    return app.exec();

Text of the program

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June 25, 2019, 2:41 p.m.

C++ - Test 001. The first program and data types

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June 25, 2019, 9:16 a.m.

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June 24, 2019, 5:49 p.m.
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Last comments
June 24, 2019, 10:23 a.m.
Евгений Легоцкой

Хорошо, ну будут проблемы помимо того, что касается статей, то не стесняйтесь задавать вопросы на форуме.
June 24, 2019, 10:21 a.m.
Михаил Булатов

Извиняюсь, все работает(из-за невнимательности).
June 24, 2019, 9:52 a.m.
Евгений Легоцкой

Придётся делать ещё сигнал в дочернем qml и пробрасывать через коннекты и обработчики. А вообще нужно смотреть конкретный код и что вы пытаетесь сделать. Так что лучше будет, если вы зад...
June 21, 2019, 8:31 a.m.
Ruslan Polupan

Вот моя строка по которой все отлично сработало %cqtdeployer% -bin c:/CentralMposKeys/CentalMposKeys.exe -qmake c:/Qt/5.12.2/mingw73_64/bin/qmake.exe
June 21, 2019, 8:24 a.m.
Андрей Янкович

Возможно кому то пригодится сqtdeployer для windows работает точно так же как и для Linux разница лишь в команде запуска Linux: cqtdeployer Windows: %cqtdeployer...
Now discuss on the forum
June 25, 2019, 6:16 p.m.
Алексей Внуков

только через webengine, прямого апи у Яндекса нет, вроде что-то есть у гугла, сам только начал интересоваться этим вопросом
June 25, 2019, 5:05 p.m.

Само заработало. Странно.
June 25, 2019, 2:32 p.m.

Похоже глюк вебсокета. К другим вебсокетам подключаюсь.
June 25, 2019, 1:55 p.m.
Андрей Янкович

падало потому что boolStatus был на стеке метода, после завершения метода переменная убивалась, и на обращении к ней было падение.просто сделай вот так: connect(&t, &QTimer::timeou...
June 25, 2019, 10:55 a.m.

По пункту 3 попытался переписать метод setData. В итоге комбобокс перестал работать. bool MySqlTableModel::setData(const QModelIndex& index, const QVariant& value, int /* role */){...
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