当前位置：首页 > article >正文

QWidget(c++)嵌入window环境的exe

article 2024/12/26 9:40:02

QWidget(c++)嵌入window环境的exe

我用的msvc2017 64bit编译器会报这个错误

visual.obj:-1: error: LNK2019: __imp_FindWindowW "public: __cdecl Visual::Visual(class QWidget *)" (??0Visual@@QEAA@PEAVQWidget@@@Z)

然后改成minGw 64bit 就不会报错

#ifndef VISUAL_H
#define VISUAL_H

#include <QWidget>
#include <QProcess>
#include<Windows.h>
#include<QWindow>

#include <Windows.h>
#include <iostream>
#include <WinUser.h>

QT_BEGIN_NAMESPACE
namespace Ui { class Visual; }
QT_END_NAMESPACE

class Visual : public QWidget
{
    Q_OBJECT

public:
    Visual(QWidget *parent = nullptr);
    ~Visual();


private:
    Ui::Visual *ui;
    QProcess *process;
    QWindow * m_window;
};
#endif // VISUAL_H

#include "visual.h"
#include "ui_visual.h"

#include <Windows.h>
#include <iostream>
#include <WinUser.h>

Visual::Visual(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Visual)
{
    ui->setupUi(this);
    process = new QProcess(this);
	//必须先启动exe，才能获取到它的句柄
    QString cmd ="C:/Program Files/Tencent/WeChat/WeChat.exe";
    STARTUPINFO si = { sizeof(si) };
    PROCESS_INFORMATION pi;
    si.dwFlags = STARTF_USESHOWWINDOW;
    si.wShowWindow = true;
    bool bRet = CreateProcess(
                NULL,
                (LPWSTR)cmd.toStdWString().c_str(),
                NULL,
                NULL,
                FALSE,
                CREATE_NEW_CONSOLE,
                NULL,
                NULL, &si, &pi);

//延时是为了保证exe程序充足启动时间，才能获取句柄
    Sleep(1000);

	//窗口的类名和窗口的标题。要专门用spy工具去获取，下面有图
    QString className = "WeChatLoginWndForPC"; // 记事本窗口的类名
    QString windowName = "微信"; // 记事本窗口的标题

      // 查找窗口句柄
        WId wid = (WId)FindWindow((LPCWSTR)className.unicode(), (LPCWSTR)windowName.unicode());

//      if (wid == 0) {
//          std::cerr << "未找到窗口！" << std::endl;
//          return ;
//      }

    m_window = QWindow::fromWinId(wid);
    m_window->setFlags(m_window->flags() | Qt::CustomizeWindowHint | Qt::WindowTitleHint); //

    QWidget *m_widget;
    m_widget = QWidget::createWindowContainer(m_window, this->ui->widget);
    m_widget->setMinimumSize(800, 800);

    ui->widget->layout()->addWidget(m_widget);
}

Visual::~Visual()
{
    delete ui;
}

我这里使用vs的spy工具，获取窗口的 标题和类名
在这里插入图片描述