qt 处理自定义的windows消息

#include "mainwindow.h"#include "ui_mainwindow.h"#include <qt_windows.h>#include <QDebug>bool MainWindow::nativeEvent(const QByteArray &eventType, void *message, long *result){    if (eventType == "windows_generic_MSG")    {        PMSG msg = (PMSG)message;        if (msg->message == WM_USER + 777)        {            qDebug() << "Hello World";            qDebug() << msg->wParam;   // 10            qDebug() << msg->lParam;   // 20        }    }    return false;}MainWindow::MainWindow(QWidget *parent) :    QMainWindow(parent),    ui(new Ui::MainWindow){    ui->setupUi(this);}MainWindow::~MainWindow(){    delete ui;}void MainWindow::on_pushButton_clicked(){    PostMessage((HWND)this->winId(), WM_USER + 777, 10, 20);}