QT窗口程序将子窗口放到桌面图标的下面的实现

快来打我* 2022-12-28 01:30 250阅读 0赞

### 在使用msvc的编译器的时候，需要在Qt的.pro文件里添加一行： ###

LIBS  += -luser32

即：

QT       += core gui
    QT       += webenginewidgets
    
    greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
    
    CONFIG += c++11
    
    # The following define makes your compiler emit warnings if you use
    # any Qt feature that has been marked deprecated (the exact warnings
    # depend on your compiler). Please consult the documentation of the
    # deprecated API in order to know how to port your code away from it.
    DEFINES += QT_DEPRECATED_WARNINGS
    LIBS  += -luser32
    
    # You can also make your code fail to compile if it uses deprecated APIs.
    # In order to do so, uncomment the following line.
    # You can also select to disable deprecated APIs only up to a certain version of Qt.
    #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
    
    SOURCES += \
        main.cpp \
        widget.cpp
    
    HEADERS += \
        widget.h
    
    FORMS +=
    
    # Default rules for deployment.
    qnx: target.path = /tmp/$${TARGET}/bin
    else: unix:!android: target.path = /opt/$${TARGET}/bin
    !isEmpty(target.path): INSTALLS += target

**widget.cpp：**

#include "widget.h"
    
    WId wId;
    LRESULT CALLBACK HookShoot(_In_ int nCode, _In_ WPARAM wParam,LPARAM lParam){
        if(wParam == WM_MOUSEMOVE || wParam == WM_NCMOUSEMOVE){
             MOUSEHOOKSTRUCT * mshook = (MOUSEHOOKSTRUCT *)lParam;
             PostMessage((HWND)wId,WM_MOUSEMOVE,0,MAKELPARAM(mshook->pt.x,mshook->pt.y));
        };
        return CallNextHookEx(NULL, nCode, wParam, lParam);
    }
    
    HWND _WORKERW = nullptr;
    inline BOOL CALLBACK EnumWindowsProc(_In_ HWND tophandle, _In_ LPARAM topparamhandle)
    {
        HWND defview = FindWindowEx(tophandle, 0, L"SHELLDLL_DefView", nullptr);
        if (defview != nullptr)
        {
            _WORKERW = FindWindowEx(0, tophandle, L"WorkerW", 0);
        }
        return true;
    }
    
    
    
    HWND GetWorkerW(){
        int result;
        HWND windowHandle = FindWindow(L"Progman", nullptr);
        //使用 0x3e8 命令分割出两个 WorkerW
        SendMessageTimeout(windowHandle, 0x052c, 0 ,0, SMTO_NORMAL, 0x3e8,(PDWORD_PTR)&result);
        //遍历窗体获得窗口句柄
        EnumWindows(EnumWindowsProc,(LPARAM)nullptr);
        // 显示WorkerW
        ShowWindow(_WORKERW,SW_HIDE);
        return windowHandle;
    }
    
    Widget::Widget(QWidget *parent)
        : QWidget(parent)
    {
    
        QWebEngineView *view = new QWebEngineView();
        QDesktopWidget * desktopWidget = QApplication::desktop();
        view->setGeometry(desktopWidget->geometry());
        wId = view->winId();
    
        view->load(QUrl("https://ljxwtl.cn/movieResult?pageIndex=1"));
    
        //设置窗口样式
        GetWindowLongA((HWND)wId, GWL_STYLE);
         //设置壁纸窗体的父窗体
        HWND workerW = GetWorkerW();
        SetParent((HWND)wId,workerW);
        SetWindowPos((HWND)wId,HWND_TOP,0,0,0,0,WS_EX_LEFT|WS_EX_LTRREADING|WS_EX_RIGHTSCROLLBAR|WS_EX_NOACTIVATE);
        SetWindowsHookEx(WH_MOUSE_LL,HookShoot,GetModuleHandle(NULL),0);
    
        view->setWindowFlag(Qt::FramelessWindowHint);
        view->show();
        view->maximumSize();
    }
    
    Widget::~Widget()
    {
    
    }