www.pudn.com > NEROSDK5582.ZIP > IOCallbacks.cpp

/****************************************************************************** 
|* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF 
|* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
|* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A 
|* PARTICULAR PURPOSE. 
|*  
|* Copyright 1995-2002 Ahead Software AG. All Rights Reserved. 
|*----------------------------------------------------------------------------- 
|* NeroSDK / NeroCmd 
|* 
|* PROGRAM: IOCallbacks.cpp 
|* 
|* PURPOSE: Callbacks that do not deal with files directly 
******************************************************************************/ 
 
 
#include "stdafx.h" 
#include "BurnContext.h" 
 
 
// These are IO callbacks necessary to perform operations with NeroAPI 
// that don't deal with files directly. 
 
// We use them when dealing with the PCM format 
 
// WriteIOCallback will used when PCM data is being read from CD 
 
DWORD NERO_CALLBACK_ATTR CBurnContext::WriteIOCallback (void *pUserData, BYTE *pBuffer, DWORD dwLen) 
{ 
	// NeroAPI provides a file handle and a buffer of data, containing dwLen bytes 
 
	return fwrite (pBuffer, 1, dwLen, (FILE *)pUserData); 
} 
 
 
BOOL NERO_CALLBACK_ATTR CBurnContext::EOFCallback (void *pUserData) 
{ 
	return feof ((FILE *)pUserData); 
} 
 
 
BOOL NERO_CALLBACK_ATTR CBurnContext::ErrorCallback (void *pUserData) 
{ 
	return ferror ((FILE *)pUserData); 
} 
 
// ReadIOCallback will be used when PCM is written to CD 
 
DWORD NERO_CALLBACK_ATTR CBurnContext::ReadIOCallback (void *pUserData, BYTE *pBuffer, DWORD dwLen) 
{ 
	// Read dwLen number of bytes from the file into pBuffer 
 
	return fread (pBuffer, 1, dwLen, (FILE *)pUserData); 
}