gps.cpp

使用com开发的一个GPRS组件

// GPS.cpp : Implementation of CGPS

#include "stdafx.h"
#include "CXGPS.h"
#include "GPS.h"

/////////////////////////////////////////////////////////////////////////////
// CGPS
#define IPADDRESS L"127.0.0.1"

_ATL_FUNC_INFO OnGPSDataInfo={CC_STDCALL, VT_EMPTY, 2, {VT_I4, VT_I4} };
_ATL_FUNC_INFO OnGPSErrorInfo={CC_STDCALL, VT_EMPTY, 1, {VT_BSTR} };


STDMETHODIMP CGPS::get_config(VARIANT *pVal)
{
	VariantCopy( pVal,&m_config);

	return S_OK;
}

STDMETHODIMP CGPS::put_config(VARIANT newVal)
{
	m_config=newVal;

	return S_OK;
}

STDMETHODIMP CGPS::get_Run(BOOL *pVal)
{
    *pVal = m_bRun;
	return S_OK;
}

STDMETHODIMP CGPS::put_Run(BOOL newVal)
{
	if(m_pDevicePoint.GetInterfacePtr() == NULL)
	{
		try{
			m_pDevicePoint.CreateInstance(__uuidof(CX803));
			if(m_pDevicePoint.GetInterfacePtr())
				DispEventAdvise(m_pDevicePoint);
		}
		catch(_com_error&)
		{
			if(m_pDevicePoint.GetInterfacePtr()) m_pDevicePoint.Release();
			ATLTRACE(_T("川新设备创建不成功\n"));
			return S_FALSE;
		}
		if(m_pDevicePoint.GetInterfacePtr() == NULL)
			return S_FALSE;
	}

	if(newVal)
	{
		VARIANT_BOOL succ;
		succ=m_pDevicePoint->StartGPS(IPADDRESS);

		if(succ==VARIANT_FALSE)
		{
			OnGPSError(L"发送GPS命令错误");
			m_bRun=FALSE;
			return S_OK;
		}
	}
	else
	{
		VARIANT_BOOL succ;
		succ=m_pDevicePoint->StopGPS();
		if(succ==VARIANT_FALSE)
		{
			OnGPSError(L"发送GPS命令错误");
			m_bRun=FALSE;
			return S_OK;
		}

	}

	m_bRun=newVal;
	return S_OK;
}

STDMETHODIMP CGPS::get_dfLong(double *pVal)
{
//	*pVal = dataLongLat.dfLong;
	
	return S_OK;
}

STDMETHODIMP CGPS::get_dfLat(double *pVal)
{
	return S_OK;
}

STDMETHODIMP CGPS::ShowConfigDlg()
{
	return S_OK;
}

STDMETHODIMP CGPS::get_clsid(GUID *pVal)
{
	memcpy(pVal,&CLSID_GPS,sizeof(GUID));

	return S_OK;
}

STDMETHODIMP CGPS::get_Name(BSTR *pVal)
{
	*pVal=SysAllocString(L"川新GPS");

	return S_OK;
}

STDMETHODIMP CGPS::get_ServerClsid(GUID *pVal)
{
	memcpy(pVal,&CLSID_GPS,sizeof(GUID));	

	return S_OK;
}