aaa.cpp

wince u盘模式和activesync模式之间的切换

// USBFunctionSwitch.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "resource.h"
#include "svsutil.hxx"
#include "usbfnioctl.h"

HANDLE GetUfnController()
{
	int		iErr;
	HANDLE	hUfn = NULL;
	HANDLE	hf;
	BYTE	bGuidBuffer[sizeof(GUID) + 4];
	LPGUID	pGuidBus;
	LPCTSTR	pszBusGuid = _T("E2BDC372-598F-4619-BC50-54B3F7848D35");
	

	DEVMGR_DEVICE_INFORMATION	devInfo;

	// Parse the GUID
	pGuidBus = (LPGUID)bGuidBuffer;
	iErr = _stscanf(pszBusGuid, SVSUTIL_GUID_FORMAT, SVSUTIL_PGUID_ELEMENTS(&pGuidBus));
	if (iErr == 0 || iErr == EOF)
	{
		return INVALID_HANDLE_VALUE;
	}

	// Get a handle to the bus driver
	memset(&devInfo, 0, sizeof(devInfo));
	devInfo.dwSize = sizeof(devInfo);
	hf = FindFirstDevice(DeviceSearchByGuid, pGuidBus, &devInfo);
	if (hf != INVALID_HANDLE_VALUE)
	{
		hUfn = CreateFile(devInfo.szBusName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
		CloseHandle(hf);
	}
	
	return hUfn;
}

BOOL ChangeClient(HANDLE hUfn, LPCTSTR pszNewClient)
{
	BOOL	bSuccess = FALSE;
	UFN_CLIENT_NAME	uClientName;

	_tcscpy(uClientName.szName, pszNewClient);
	bSuccess = DeviceIoControl(hUfn, IOCTL_UFN_CHANGE_CURRENT_CLIENT, &uClientName, sizeof(uClientName), NULL, 0, NULL, NULL);

	return bSuccess;
}