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							240 lines
						
					
					
						
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							240 lines
						
					
					
						
							7.9 KiB
						
					
					
				// Loader4.cpp
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// (c) 2005 National Control Systems, Inc.
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// Portions (c) 2004 Drew Technologies, Inc.
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// Dynamic J2534 v04.04 dll loader for VB
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to:
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// the Free Software Foundation, Inc.
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// 51 Franklin Street, Fifth Floor
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// Boston, MA  02110-1301, USA
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// National Control Systems, Inc.
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// 10737 Hamburg Rd
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// Hamburg, MI 48139
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// 810-231-2901
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// Drew Technologies, Inc.
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// 7012  E.M -36, Suite 3B
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// Whitmore Lake, MI 48189
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// 810-231-3171
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#define STRICT
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#include "stdafx.h"
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#include <windows.h>
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#include "Loader4.h"
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PTOPEN LocalOpen;
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PTCLOSE LocalClose;
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PTCONNECT LocalConnect;
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PTDISCONNECT LocalDisconnect;
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PTREADMSGS LocalReadMsgs;
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PTWRITEMSGS LocalWriteMsgs;
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PTSTARTPERIODICMSG LocalStartPeriodicMsg;
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PTSTOPPERIODICMSG LocalStopPeriodicMsg;
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PTSTARTMSGFILTER LocalStartMsgFilter;
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PTSTOPMSGFILTER LocalStopMsgFilter;
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PTSETPROGRAMMINGVOLTAGE LocalSetProgrammingVoltage;
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PTREADVERSION LocalReadVersion;
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PTGETLASTERROR LocalGetLastError;
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PTIOCTL LocalIoctl;
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HINSTANCE hDLL = NULL;
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//BOOL bIsCorrectVersion = FALSE;
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BOOL WINAPI DllMain(HINSTANCE hInstA, DWORD dwReason, LPVOID lpvReserved)
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{
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	switch (dwReason) {
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	case DLL_PROCESS_ATTACH:
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		// The DLL is being mapped into the process's address space
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	case DLL_THREAD_ATTACH:
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		// A thread is being created
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	    break;
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	case DLL_THREAD_DETACH:
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		// A thread is exiting cleanly
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	    break;
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	case DLL_PROCESS_DETACH:
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		// The DLL is being unmapped from the process's address space
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	    break;
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	}
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	return TRUE;
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}
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long WINAPI LoadJ2534Dll(char *sLib)
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{
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	long lFuncList = 0;
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	if (hDLL != NULL) UnloadJ2534Dll();
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	hDLL = LoadLibraryA (sLib);
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	if (hDLL == NULL) return ERR_NO_DLL;
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	LocalOpen = (PTOPEN)(GetProcAddress(hDLL, "PassThruOpen"));
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	if (LocalOpen == NULL) lFuncList = lFuncList | ERR_NO_PTOPEN;
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	LocalClose = (PTCLOSE)(GetProcAddress(hDLL, "PassThruClose"));
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	if (LocalClose == NULL) lFuncList = lFuncList | ERR_NO_PTCLOSE;
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	LocalConnect = (PTCONNECT)(GetProcAddress(hDLL,"PassThruConnect"));
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	if (LocalConnect == NULL) lFuncList = lFuncList | ERR_NO_PTCONNECT;
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	LocalDisconnect = (PTDISCONNECT)(GetProcAddress(hDLL,"PassThruDisconnect"));
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	if (LocalDisconnect == NULL) lFuncList = lFuncList | ERR_NO_PTDISCONNECT;
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	LocalReadMsgs = (PTREADMSGS)(GetProcAddress(hDLL,"PassThruReadMsgs"));
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	if (LocalReadMsgs == NULL) lFuncList = lFuncList | ERR_NO_PTREADMSGS;
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	LocalWriteMsgs = (PTWRITEMSGS)(GetProcAddress(hDLL,"PassThruWriteMsgs"));
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	if (LocalWriteMsgs == NULL) lFuncList = lFuncList | ERR_NO_PTWRITEMSGS;
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	LocalStartPeriodicMsg = (PTSTARTPERIODICMSG)(GetProcAddress(hDLL,"PassThruStartPeriodicMsg"));
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	if (LocalStartPeriodicMsg == NULL) lFuncList = lFuncList | ERR_NO_PTSTARTPERIODICMSG;
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	LocalStopPeriodicMsg = (PTSTOPPERIODICMSG)(GetProcAddress(hDLL,"PassThruStopPeriodicMsg"));
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	if (LocalStopPeriodicMsg == NULL) lFuncList = lFuncList | ERR_NO_PTSTOPPERIODICMSG;
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	LocalStartMsgFilter = (PTSTARTMSGFILTER)(GetProcAddress(hDLL,"PassThruStartMsgFilter"));
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	if (LocalStartPeriodicMsg == NULL) lFuncList = lFuncList | ERR_NO_PTSTARTMSGFILTER;
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	LocalStopMsgFilter = (PTSTOPMSGFILTER)(GetProcAddress(hDLL,"PassThruStopMsgFilter"));
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	if (LocalStopMsgFilter == NULL) lFuncList = lFuncList | ERR_NO_PTSTOPMSGFILTER;
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	LocalSetProgrammingVoltage = (PTSETPROGRAMMINGVOLTAGE)(GetProcAddress(hDLL,"PassThruSetProgrammingVoltage"));
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	if (LocalSetProgrammingVoltage == NULL) lFuncList = lFuncList | ERR_NO_PTSETPROGRAMMINGVOLTAGE;
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	LocalReadVersion = (PTREADVERSION)(GetProcAddress(hDLL,"PassThruReadVersion"));
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	if (LocalReadVersion == NULL) lFuncList = lFuncList | ERR_NO_PTREADVERSION;
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	LocalGetLastError = (PTGETLASTERROR)(GetProcAddress(hDLL,"PassThruGetLastError"));
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	if (LocalGetLastError == NULL) lFuncList = lFuncList | ERR_NO_PTGETLASTERROR;
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	LocalIoctl = (PTIOCTL)(GetProcAddress(hDLL,"PassThruIoctl"));
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	if (LocalIoctl == NULL) lFuncList = lFuncList | ERR_NO_PTIOCTL;
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	if (lFuncList == ERR_NO_FUNCTIONS) return ERR_WRONG_DLL_VER;
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	return lFuncList;
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}
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long WINAPI UnloadJ2534Dll()
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{
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	if (FreeLibrary(hDLL))
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	{
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		hDLL = NULL;
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		LocalOpen = NULL;
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		LocalClose = NULL;
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		LocalConnect = NULL;
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		LocalDisconnect = NULL;
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		LocalReadMsgs = NULL;
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		LocalWriteMsgs = NULL;
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		LocalStartPeriodicMsg = NULL;
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		LocalStopPeriodicMsg = NULL;
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		LocalStartMsgFilter = NULL;
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		LocalStopMsgFilter = NULL;
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		LocalSetProgrammingVoltage = NULL;
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		LocalReadVersion = NULL;
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		LocalGetLastError = NULL;
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		LocalIoctl = NULL;
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		return 0;
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	}
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	return ERR_NO_DLL;
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}
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long WINAPI PassThruOpen(void *pName, unsigned long *pDeviceID)
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{
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	if (LocalOpen == NULL) return ERR_FUNC_MISSING;
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	return LocalOpen(pName, pDeviceID);
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}
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long WINAPI PassThruClose(unsigned long DeviceID)
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{
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	if (LocalOpen == NULL) return ERR_FUNC_MISSING;
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	return LocalClose(DeviceID);
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}
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long WINAPI PassThruConnect(unsigned long DeviceID, unsigned long ProtocolID, unsigned long Flags, unsigned long Baudrate, unsigned long *pChannelID)
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{
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	if (LocalConnect == NULL) return ERR_FUNC_MISSING;
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	return LocalConnect(DeviceID, ProtocolID, Flags, Baudrate, pChannelID);
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}
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long WINAPI PassThruDisconnect(unsigned long ChannelID)
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{
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	if (LocalDisconnect == NULL) return ERR_FUNC_MISSING;
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	return LocalDisconnect(ChannelID);
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}
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long WINAPI PassThruReadMsgs(unsigned long ChannelID, PASSTHRU_MSG *pMsg, unsigned long *pNumMsgs, unsigned long Timeout)
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{
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	if (LocalReadMsgs == NULL) return ERR_FUNC_MISSING;
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	return LocalReadMsgs(ChannelID, pMsg, pNumMsgs, Timeout);
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}
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long WINAPI PassThruWriteMsgs(unsigned long ChannelID, PASSTHRU_MSG *pMsg, unsigned long *pNumMsgs, unsigned long Timeout)
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{
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	if (LocalWriteMsgs == NULL) return ERR_FUNC_MISSING;
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	return LocalWriteMsgs(ChannelID, pMsg, pNumMsgs, Timeout);
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}
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long WINAPI PassThruStartPeriodicMsg(unsigned long ChannelID, PASSTHRU_MSG *pMsg, unsigned long *pMsgID, unsigned long TimeInterval)
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{
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	if (LocalStartPeriodicMsg == NULL) return ERR_FUNC_MISSING;
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	return LocalStartPeriodicMsg(ChannelID, pMsg, pMsgID, TimeInterval);
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}
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long WINAPI PassThruStopPeriodicMsg(unsigned long ChannelID, unsigned long MsgID)
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{
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	if (LocalStopPeriodicMsg == NULL) return ERR_FUNC_MISSING;
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	return LocalStopPeriodicMsg(ChannelID, MsgID);
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}
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long WINAPI PassThruStartMsgFilter(unsigned long ChannelID, unsigned long FilterType,
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	PASSTHRU_MSG *pMaskMsg, PASSTHRU_MSG *pPatternMsg, PASSTHRU_MSG *pFlowControlMsg, unsigned long *pFilterID)
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{
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	if (LocalStartMsgFilter == NULL) return ERR_FUNC_MISSING;
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	return LocalStartMsgFilter(ChannelID, FilterType, pMaskMsg, pPatternMsg, pFlowControlMsg, pFilterID);
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}
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long WINAPI PassThruStopMsgFilter(unsigned long ChannelID, unsigned long FilterID)
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{
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	if (LocalStopMsgFilter == NULL) return ERR_FUNC_MISSING;
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	return LocalStopMsgFilter(ChannelID, FilterID);
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}
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long WINAPI PassThruSetProgrammingVoltage(unsigned long DeviceID, unsigned long PinNumber, unsigned long Voltage)
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{
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	if (LocalSetProgrammingVoltage == NULL) return ERR_FUNC_MISSING;
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	return LocalSetProgrammingVoltage(DeviceID, PinNumber, Voltage);
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}
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long WINAPI PassThruReadVersion(unsigned long DeviceID, char *pFirmwareVersion, char *pDllVersion, char *pApiVersion)
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{
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	if (LocalReadVersion == NULL) return ERR_FUNC_MISSING;
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	return LocalReadVersion(DeviceID, pFirmwareVersion, pDllVersion, pApiVersion);
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}
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long WINAPI PassThruGetLastError(char *pErrorDescription)
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{
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	if (LocalGetLastError == NULL) return ERR_FUNC_MISSING;
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	return LocalGetLastError(pErrorDescription);
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}
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long WINAPI PassThruIoctl(unsigned long ChannelID, unsigned long IoctlID, void *pInput, void *pOutput)
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{
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	if (LocalIoctl == NULL) return ERR_FUNC_MISSING;
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	return LocalIoctl(ChannelID, IoctlID, pInput, pOutput);
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} |