Qt MainWindow中自定义函数调用MainWindow中方法

Posted 2020-10-21 caiyingyong

MainWindow *m;//定义全局

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    m = this;
    ui->setupUi(this);
}

void MainWindow::appendLog(QString log)
{
    ui->textBrowser->append(log);
}

void onMessages(void *param2)
{
    //直接用m;  
    m->appendLog("\n" + QString((char *)param2) +"\n");
}

 mainwindow.h

public:
    void appendLog(QString log);