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char * WideCharToChar( char* pcstr,const wchar_t* pWstr,size_t nLen ){	int nLength = wcslen( pWstr );	int nBytes = WideCharToMultiByte( 0,0,pWstr,nLength,NULL,0,NULL,NULL );	if ( nBytes > nLen )	{		nBytes = nLen;	}	WideCharToMultiByte( 0,0,pWstr,nLength,pcstr,nBytes,NULL,NULL );	return pcstr;}

wchar_t* CharToWideChar( char * pchar,wchar_t* pWChar,size_t nLen ){	size_t size = MultiByteToWideChar( CP_ACP,0,pchar,-1,NULL,0 );	if ( size > nLen )	{		size = nLen;	}	if ( !MultiByteToWideChar( CP_ACP,0,pchar,-1,pWChar,size ))	{		return pWChar;	}	return NULL;}

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