//?ComControl.cpp

#include?“StdAfx.h“
#include?“ComControl.h“
#include?“DlgComSet.h“

UINT?ComThreadProc（LPVOID?para）
{
	CComControl*?pCom?=?（CComControl*）para;
	DWORD?dwEventMask;
	OVERLAPPED?eov;
	memset（?&eov?0?sizeof（?OVERLAPPED?）?）?;
	eov.hEvent?=?CreateEvent（?NULL		//?no?security?attributes
							??FALSE	//?auto?reset?event
							??FALSE	//?not?signaled
							??NULL		//?no?name
							）;
	HANDLE?hWaits[2];
	DWORD?dwWait;
	hWaits[0]?=?eov.hEvent;
	hWaits[1]?=?pCom->m_hExit;
	while（true）
	{
		dwEventMask?=?0;
		WaitCommEvent（pCom->m_hCom?&dwEventMask?&eov）;
		dwWait?=?WaitForMultipleobjects（2?hWaits?false?INFINITE）;
		if（dwWait?==?WAIT_object_0+1）
			break;
		
		//EnterCriticalSection（&pCom->m_csWmThreshold）;
		pCom->ResetBytes（）;

		if（dwEventMask?&?EV_ERR）		//?線路錯誤CE_frame?CE_OVERRUN?and?CE_RXPARITY.
		{
			SendMessage（?pCom->m_hOwner?WM_COM?COM_ERR?0?）;
		}

		if（dwEventMask?&?EV_TXEMPTY）	//?輸出緩沖區空
		{
			SendMessage（?pCom->m_hOwner?WM_COM?COM_EMPTY?0?）;
		}

		if（?dwEventMask?&?EV_RXCHAR?&&?
//			pCom->m_bCanInterrupt	&&				//確認上一條消息已處理完
//			pCom->m_nThresHold		&&
			pCom->m_cbInQue?>=?pCom->m_nThresHold	//?輸入緩沖區接收到一字符
		??）?	
		{
			pCom->m_bCanInterrupt?=?false;
			SendMessage（?pCom->m_hOwner?WM_COMCOM_THRESHOLD0）;
		}
		//LeaveCriticalSection（&pCom->m_csWmThreshold）;
	}
	CloseHandle（eov.hEvent）;

	return?true;
}

CComControl::CComControl（HWND?hOwner）
{
	m_hOwner	=?hOwner;
	InitCom（）;
}

void?CComControl::InitCom（）
{
	InitializeCriticalSection（&m_csWmThreshold）;
	memset（?&m_ovRead	0?sizeof（?OVERLAPPED?）?）?;
????memset（?&m_ovWrite?0?sizeof（?OVERLAPPED?）?）?;
????m_ovRead.hEvent?=?CreateEvent（?NULL	//?no?security
???????????????????????????????????TRUE	//?explicit?reset?req；TRUE=人工重置；FASE=自動重置
???????????????????????????????????FALSE	//?initial?event?reset；TRUE=已通知狀態；FALSE=未通知狀態
???????????????????????????????????NULL		//?no?name
								??）;???????
????m_ovWrite.hEvent?=?CreateEvent（?NULL?TRUE?FALSE?NULL?）;??//?See?above
	m_nThresHold	=?0;
	m_bCanInterrupt?=?false;
	m_hExit			=?CreateEvent（NULL?false?false?NULL）;
	m_szPortName	=?“COM1“;
	m_lBaudRate		=?9600;
	m_nParity		=?NOPARITY;
	m_hCom			=?INVALID_HANDLE_VALUE;
	m_cbInQue		=?0;
	m_cbOutQue		=?0;
	m_pThread?=?AfxBeginThread（ComThreadProc?（LPVOID）thisTHREAD_PRIORITY_NORMAL?0?CREATE_SUSPENDED）;?
}

CComControl::~CComControl（）
{
	m_pThread->ResumeThread（）;
	SetEvent（m_hExit）;
	WaitForSingleobject（m_pThread->m_hThread?INFINITE）;
	m_pThread?=?NULL;	??//this?ensure?pCom->ClosePort?work?correct	
	ClosePort（）;
	CloseHandle（m_ovRead.hEvent）;
	CloseHandle（m_ovWrite.hEvent）;
	CloseHandle（m_hExit）;
	DeleteCriticalSection（&m_csWmThreshold）;
}

bool?__fastcall?CComControl::IsWindowsNT（）
{
	OSVERSIONINFO?osv;
	osv.dwOSVersionInfoSize?=?sizeof（osv）;
	GetVersionEx（&osv）;
	return?（osv.dwPlatformId?==?VER_PLATFORM_WIN32_NT）;
}

void?CComControl::ResetByte

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????17328??2004-02-08?14:52??vc?test\jkModbus\CDTCS.RC

?????文件??????10158??2004-06-01?14:55??vc?test\jkModbus\ComControl.cpp

?????文件???????1921??2004-06-01?15:26??vc?test\jkModbus\ComControl.h

?????文件???????5697??2004-06-01?15:08??vc?test\jkModbus\CRCClass.cpp

?????文件???????1544??2004-06-01?15:19??vc?test\jkModbus\CRCClass.h

?????文件??????26813??2006-02-26?12:26??vc?test\jkModbus\Debug\ComControl.obj

?????文件??????????0??2006-02-26?12:26??vc?test\jkModbus\Debug\ComControl.sbr

?????文件??????10113??2006-02-26?12:26??vc?test\jkModbus\Debug\CRCClass.obj

?????文件??????????0??2006-02-26?12:26??vc?test\jkModbus\Debug\CRCClass.sbr

?????文件??????20390??2006-02-26?12:26??vc?test\jkModbus\Debug\DlgComSet.obj

?????文件??????????0??2006-02-26?12:26??vc?test\jkModbus\Debug\DlgComSet.sbr

?????文件????3138560??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.bsc

?????文件????2121838??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.exe

?????文件????2500432??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.ilk

?????文件??????14427??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.obj

?????文件????6842740??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.pch

?????文件????3548160??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.pdb

?????文件???????4244??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.res

?????文件??????????0??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbus.sbr

?????文件??????72748??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbusDlg.obj

?????文件??????????0??2006-02-26?12:26??vc?test\jkModbus\Debug\jkModbusDlg.sbr

?????文件?????106024??2006-02-26?12:26??vc?test\jkModbus\Debug\StdAfx.obj

?????文件????1363263??2006-02-26?12:26??vc?test\jkModbus\Debug\StdAfx.sbr

?????文件?????214016??2006-09-03?15:24??vc?test\jkModbus\Debug\VC60.IDB

?????文件?????364544??2006-02-26?12:26??vc?test\jkModbus\Debug\VC60.PDB

?????目錄??????????0??2010-10-21?20:45??vc?test\jkModbus\Debug

?????文件???????2836??2004-05-28?14:24??vc?test\jkModbus\DlgComSet.cpp

?????文件???????1409??2004-02-08?16:18??vc?test\jkModbus\DlgComSet.h

?????文件??????24244??2006-09-03?15:24??vc?test\jkModbus\jkModbus.aps

?????文件???????3149??2006-09-03?15:24??vc?test\jkModbus\jkModbus.clw

............此處省略23個文件信息