关于CreateFile不解的问题

见习学术士 2011-03-15 02:26:35

NT驱动，使用服务安装动态安装后，问题：
1，不知为何在 CreateService 后，驱动那边收到了 IRP_MJ_CLOSE 消息。。
2，启动成功后，使用CreateFile 打开错误，返回错误代码2，文件不存在。驱动文件是和测试程序在同一个目录的。而且用WINOBJ工具都看到了我的驱动，使用CreateFile 打开居然失败，不解呀。

调用：



CDriver Driver;

	HANDLE hHandle;

	if( !Driver.OpenDevice("QQKeyBoard", &hHandle) )

	{

		CString strError;

		strError.Format("open dirver failed!, error code:%u", GetLastError());

		MessageBox(strError);

		return;

	}





BOOL CDriver::OpenDevice( IN LPCTSTR DriverName, HANDLE * lphDevice )

{

	TCHAR    completeDeviceName[64];

	HANDLE   hDevice;



	//

	// Create a \\.\XXX device name that CreateFile can use

	//

	 //NOTE: We're making an assumption here that the driver

	 //      has created a symbolic link using it's own name

	 //      (i.e. if the driver has the name "XXX" we assume

	 //      that it used IoCreateSymbolicLink to create a

	 //      symbolic link "\DosDevices\XXX". Usually, there

	 //      is this understanding between related apps/drivers.

	

	 //      An application might also peruse the DEVICEMAP

	 //      section of the registry, or use the QueryDosDevice

	 //      API to enumerate the existing symbolic links in the

	 //      system.

	//



	if( (GetVersion() & 0xFF) >= 5 ) {



		//

		// We reference the global name so that the application can

		// be executed in Terminal Services sessions on Win2K

		//

		wsprintf( completeDeviceName, TEXT("\\\\.\\Global\\%s"), DriverName );



	} else {



		wsprintf( completeDeviceName, TEXT("\\\\.\\%s"), DriverName );

	}



	hDevice = CreateFile( completeDeviceName,	

		GENERIC_READ | GENERIC_WRITE,

		0,

		NULL,

		OPEN_EXISTING,

		FILE_ATTRIBUTE_NORMAL,		

		NULL

		);

	if ( hDevice == ((HANDLE)-1) )

		return FALSE;



	// If user wants handle, give it to them.  Otherwise, just close it.

	if ( lphDevice )

		*lphDevice = hDevice;

	else

		CloseHandle( hDevice );



	return TRUE;

}