我正在尝试使用“QextSerialPort”打开我的Huwawei USB dongle。
我的PORT详情如下
Port Name:
Product ID:
Physical Name: \Device\000000ca
Vendor Id:
Friend Name: SB
Port Name:
Product ID:?
Physical Name: \Device\USBPDO-10
Vendor Id: ?
Friend Name: TH
Port Name: COM3
Product ID:
Physical Name: \Device\BthModem0
Vendor Id:
Friend Name: Standard Serial over Bluetooth link (COM3)
Port Name: COM4
Product ID:
Physical Name: \Device\BthModem2
Vendor Id:
Friend Name: Standard Serial over Bluetooth link (COM4)
Port Name: COM5
Product ID:
Physical Name: \Device\BthModem1
Vendor Id:
Friend Name: Standard Modem over Bluetooth link
Port Name: COM6
Product ID:?
Physical Name: \Device\000000e2
Vendor Id: ?
Friend Name: HUAWEI Mobile Connect - 3G Application Interface (COM6)
Port Name: COM7
Product ID:?
Physical Name: \Device\000000e0
Vendor Id: ?
Friend Name: HUAWEI Mobile Connect - 3G Modem
Port Name: COM8
Product ID:?
Physical Name: \Device\000000e3
Vendor Id: ?
Friend Name: HUAWEI Mobile Connect - 3G PC UI Interface (COM8)
我正在尝试打开我的 USB 加密狗,这样我就可以发送短信了。以下是我的打开代码
#include "MyClass.h"
#include <qstring.h>
#include <qdebug.h>
int main()
{
QextSerialPort *port = new QextSerialPort("COM7");
port->open(QIODevice::ReadWrite);
cout << port->isOpen();
system("pause");
return 0;
}
当我运行这段代码时,我得到的是
QWinEventNotifier: Can only be used with threads started with QThread
1
这显示了端口号 Open,但是那条消息呢?这是否意味着我无法继续使用其他代码?在编写其他代码之前,我想知道这一点。
最佳答案
最有可能的是,您需要创建一个QApplication
,没有它,很多事情比如事件和信号/槽将无法工作:
int main()
{
QApplication app;
QextSerialPort *port = new QextSerialPort("COM7");
port->open(QIODevice::ReadWrite);
cout << port->isOpen();
system("pause");
return app.exec();
}
关于c++ - QWinEventNotifier : Can only be used with threads started with QThread,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16394948/