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QWidget(c++)嵌入window环境的exe

news 2025/7/14 20:53:37

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_NAMESPACEclass Visual : public QWidget
{Q_OBJECTpublic: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