comtest.h

在linux下的QT中使用串口的编程方法

#include<QThread>
#include<QTextEdit>
#include<QMutex>
#include<QObject>
#include <QtGui/QLabel>
#include "win_qextserialport.h"
class comtest:public QThread
{
    Q_OBJECT
	public:
	QMutex *m;
	Win_QextSerialPort *port;
        comtest(Win_QextSerialPort *port)
	{
          		this->port=port;
          		m=new QMutex;
        }
          void run()
	        {
	                   char buff[1024];
                           int numBytes;
                           qDebug("thread2 is running!\n");
	              while(1)
	              {

                           this->msleep(100);
                           numBytes = port->bytesAvailable();
                            if(numBytes >0 )
                            {
                               m->lock();
                               emit readsignal();
                               m->unlock();
                             }
                       }
                  }
    signals:
                void readsignal();


};