在view中使用ComControl_com control-优快云博客

本文详细介绍了如何在视图中实现串口指针的初始化、配置串口参数、打开串口、发送数据以及接收数据的过程。通过构造函数创建COM控件，实现在打开视图时自动初始化串口，并在发送和接收数据时进行错误处理。

1.添加两个文件ComControl.cpp，ComControl.h
2.CTest8view.h里定义串口指针
public:
CComControl* m_Com;
3. 新建三个菜单项

在constructe里面创建com,没有在view的构造函数里创建，因为不起作用

void CTest8View::Onconstruct() 
{
	// TODO: Add your command handler code here
	m_Com = new CComControl(this->m_hWnd);
}

4.在open里面打开串口

void CTest8View::Onopen() 
{
	// TODO: Add your command handler code here
	m_Com->m_szPortName	= "COM7";
	m_Com->m_lBaudRate	= atol("9600");
	m_Com->m_nParity = EVENPARITY;
		m_Com->OpenPort();	
}

5.发送数据

void CTest8View::Onsend() 
{
	// TODO: Add your command handler code here
	if (!m_Com->PortOpened())
	{
		AfxMessageBox("通讯串口没有打开！");
		return;
	}
	BYTE yxdata[1024];
	BYTE* ucharYxData = yxdata;	
	yxdata[0]='h';
	yxdata[1]='e';
	int YxFrameNum=2;
	//YxFrameNum= ReadFrame(ucharYxData,yxdata);	//请求读
	m_Com->Send(ucharYxData, YxFrameNum);
}

6.接受数据，在view的windowproc函数里面接收串口消息

LRESULT CTest8View::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	// TODO: Add your specialized code here and/or call the base class
	
	if(message == WM_COM)
	{
		if(wParam != COM_THRESHOLD)
		{
			if(wParam == 5)
			{
				int m_xx=0;
				m_xx++;
			}
			return 0;
		}	
		CString m_szReceiveView;
		bool m_bRvSucced;
		BYTE buff[1024];
		DWORD dwReaded;
		m_bRvSucced = m_Com->Receive(buff, 1024, dwReaded);//接收数据的长度dwReaded
		TRACE("dwReaded:%d",dwReaded);
		m_Com->SetThreshold(1);
		return true;
	} 

	return CView::WindowProc(message, wParam, lParam);
}

http://download.youkuaiyun.com/detail/luck_good/3993210