最近几天在网上搜索一下关于QtE自定义按键的文章，看了有些收获，拿出来大家讨论讨论
公司是通过串口接的键盘，通过串口接键盘首先要有串口驱动，设置串口(波动率，数据位，停止位，数据怎样校验)
--------------------------test.h------------------------------------------------------
#ifndef TEST_H
#define TEST_H
class test :public QWidget
{
Q_OBJECT
public :
test();
int fd;
QSocketNotifier *notifier;
public slots:
void readKeyboardData();
};
#endif
------------------------------test.cpp------------------------------
#include <stdio.h> /*标准输入输出定义*/
#include <stdlib.h> /*标准函数库定义*/
#include <unistd.h> /*Unix 标准函数定义*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h> /*文件控制定义*/
#include <termios.h> /*PPSIX 终端控制定义*/
#include <errno.h> /*错误号定义*/
#include "test.h"struct termios opt;
test::test()
{
fd=-1;
fd=open("/dev/ttyS0",O_RDONLY | O_NDELAY);
// 设置串口属性
cfsetispeed(&opt, B9600);
cfsetospeed(&opt, B9600);
opt.c_cflag |=CLOCAL | CREAD;
opt.c_cflag &= ~CSIZE;
opt.c_cflag |=CS8;
opt.c_cflag &= ~PARENB;
opt.c_cflag &= ~CSTOPB;
tcsetattr(fd,TCSANOW,&opt);
if(fd>0)
{
notifier = new QSocketNotifier( fd, QSocketNotifier::Read, this );
connect( notifier, SIGNAL(activated(int)),this,SLOT(readKeyboardData()) );
}
}
void test::readKeyboardData()
{
char buf;
int codekey;
read(fd,buf,sizeof(buf));
switch(buf)
{
case '1':
codekey=Qt::Key_Left;
break;
case '2':
codekey=Qt::Key_Right;
break;
case '3':
codekey=Qt::Key_Up;
break;
case '4':
codekey=Qt::Key_Down;
break;
}
QWSServer::processKeyEvent(0,codekey,Qt::NoModifier,true,false);
}
int main(int argc,char **argv)
{
QApplication app(argc,argv);
test ts;
ts.show();
return app.exec()
}
