QT获取句柄

HWND appwnd;

appwnd = (HWND)this->winId();

QString ClassName("Qt5QWindowIcon");

QString AppName = QStringLiteral("GG");

LPCWSTR app = reinterpret_cast<LPCWSTR>(ClassName.data());

LPCWSTR appCaption = reinterpret_cast<LPCWSTR>(AppName.data());

appwnd = ::FindWindow(app, appCaption);

HWND hwnd;

hwnd=(HWND)myWidget->winId();

qDebug() << "----------创建预览窗口-------------"<<hwnd;

qDebug() << "----------创建预览窗口-------------"<<(unsigned long)hwnd;

qDebug() << "----------创建预览窗口-------------"<<myWidget->winId();

qDebug() << "----------创建预览窗口-------------"<<this->winId();