qwidget嵌入到任务栏

#include <QApplication>
#include <QWidget>
#include <QDebug>
#include <windows.h>
#include <QVBoxLayout> // 包含 QVBoxLayout 头文件
#include <QLabel>
#include <QLineEdit>int main(int argc, char *argv[]) {QApplication a(argc, argv);// 获取任务栏的高度HWND taskbar = FindWindow(L"Shell_traywnd", NULL);RECT taskbarRect;GetWindowRect(taskbar, &taskbarRect);int taskbarHeight = taskbarRect.bottom - taskbarRect.top;// 创建一个简单的 QWidget 对象QWidget widget;widget.setWindowTitle("Embedded Widget");int widgetHeight = taskbarHeight;int widgetWidth = taskbarHeight * 8;widget.resize(widgetWidth, widgetHeight);// 创建一个垂直布局管理器QVBoxLayout *layout = new QVBoxLayout(&widget);layout->setContentsMargins(0, 0, 0, 0); // 设置布局边距为0// 创建一个 QLabel 控件用于显示红色文字QLabel *label = new QLabel;label->setText("<font color='red'>Red Text</font>");label->setAlignment(Qt::AlignCenter);// 将 QLabel 添加到垂直布局中layout->addWidget(label);// 设置 QWidget 的布局widget.setLayout(layout);// 隐藏标题栏并设置为不可移动widget.setWindowFlag(Qt::FramelessWindowHint);widget.setWindowFlag(Qt::WindowStaysOnTopHint);widget.show();// 寻找任务栏的句柄HWND hShell = FindWindowEx(NULL, NULL, L"Shell_TrayWnd", NULL);if (hShell == NULL) {qDebug() << "Failed to find taskbar.";return 1;}// 寻找ReBarWindow32的句柄HWND hReBar = FindWindowEx(hShell, NULL, L"ReBarWindow32", NULL);if (hReBar == NULL) {qDebug() << "Failed to find ReBarWindow32.";return 1;}// 将窗口嵌入到ReBarWindow32容器中SetParent((HWND)widget.winId(), hReBar);// 将窗口移动到指定位置RECT rcReBar;GetWindowRect(hReBar, &rcReBar);int windowX = rcReBar.right - widgetWidth; // 将窗口放置在ReBarWindow32的最右侧int windowY = (rcReBar.bottom - rcReBar.top - widgetHeight) / 2; // 竖直居中if (!MoveWindow((HWND)widget.winId(), windowX, windowY, widgetWidth, widgetHeight, TRUE)) {qDebug() << "Failed to move embedded widget.";return 1;}return a.exec();
}

qml嵌入到任务栏，原理是qml文件嵌入到QQuickWidget 中，然后用它实现上一步的qwidget嵌入，注意qml的内容，不能是window等，只能是item，Rectangle等。

QQuickWidget *qmlWidget = new QQuickWidget(QUrl("qrc:/main.qml"));qmlWidget->setWindowFlags(Qt::FramelessWindowHint);qmlWidget->show();// 获取屏幕的尺寸QScreen *screen = QApplication::primaryScreen();QRect screenGeometry = screen->geometry();// 获取任务栏的高度HWND taskbar = FindWindow(L"Shell_traywnd", NULL);RECT taskbarRect;GetWindowRect(taskbar, &taskbarRect);int taskbarHeight = taskbarRect.bottom - taskbarRect.top;int widgetHeight = taskbarHeight;int widgetWidth = taskbarHeight * 2;// 寻找任务栏的句柄HWND hShell = FindWindowEx(NULL, NULL, L"Shell_TrayWnd", NULL);if (hShell == NULL) {qDebug() << "Failed to find taskbar.";return 1;}// 寻找ReBarWindow32的句柄HWND hReBar = FindWindowEx(hShell, NULL, L"ReBarWindow32", NULL);if (hReBar == NULL) {qDebug() << "Failed to find ReBarWindow32.";return 1;}// 将窗口嵌入到ReBarWindow32容器中SetParent((HWND)qmlWidget->winId(), hReBar);// 将窗口移动到指定位置RECT rcReBar;GetWindowRect(hReBar, &rcReBar);int windowX = rcReBar.right - widgetWidth * 2; // 将窗口放置在ReBarWindow32的最右侧int windowY = (rcReBar.bottom - rcReBar.top - widgetHeight) / 2; // 竖直居中if (!MoveWindow((HWND)qmlWidget->winId(), windowX, windowY, widgetWidth, widgetHeight, TRUE)) {qDebug() << "Failed to move embedded widget.";return 1;}

qml文件

import QtQuick 2.0Rectangle {id: rootwidth: 400height: 400color: "lightblue"MouseArea {id: dragAreaanchors.fill: parentcursorShape: Qt.OpenHandCursorproperty var dragStartPosition: Qt.point()onPressed: {dragStartPosition = Qt.point(mouse.x, mouse.y)}onPositionChanged: {if (dragArea.drag.active) {qmlWidget.x += mouse.x - dragStartPosition.xqmlWidget.y += mouse.y - dragStartPosition.ydragStartPosition = Qt.point(mouse.x, mouse.y)}}}Text {text: "Hello, World!"anchors.centerIn: parentfont.pointSize: 24color: "black"}
}