nfxReceiveFax

typedef struct 
{
 DWORD size;   
 DWORD modemtype;      /* NFX_MODEM_TYPE_V27 or NFX_MODEM_TYPE_V29.           */
 DWORD minrate;     /* NFX_BIT_RATE_2400, NFX_BIT_RATE_4800,            */
      /* NFX_BIT_RATE_7200, or NFX_BIT_RATE_9600           */
 DWORD resolution;     /* NFX_RESOLUTION_HIGH, NFX_RESOLUTION_LOW,         */
      /* NFX_RESOLUTION_SUPER_HIGH           */
 DWORD encoding;     /* NFX_ENCODE_1D, NFX_ENCODE_2D, or           */
      /* NFX_ENCODE_MMR           */
 DWORD pollingenabled;/* NFX_YES or NFX_NO                */
 DWORD badlineaction; /* NFX_BAD_LINE_ACTION_NONE,                */
      /* NFX_BAD_LINE_ACTION_DROP,            */
      /* NFX_BAD_LINE_ACTION_REPT, or            */
      /* NFX_BAD_LINE_ACTION_TICK            */
 DWORD pagewidth;     /* NFX_PAGE_WIDTH_A4. NFX_PAGE_WIDTH__B4, or */
      /* NFX_PAGE_WIDTH_A3           */
 DWORD OTFmode;     /* NFX_OTF_NEVER, NFX_OTF_ALWAYS, or           */
      /* NFX_OTF_ONLY_IF_FAIL           */
 DWORD useECM;     /* NFX_YES or NFX_NO            */
 DWORD lineerrors;     /* % line errors before retrain negative           */
 INT32 level;     /* tx level in tenths of dBm(-150 to -60)           */
 INT32 threshold;     /* lowest level for receive, tenths of dBm           */
 DWORD NSFlength;     /* Length of NSF field or 0 if none           */
 char SID[NFX_MAX_SID]; /* Subscriber ID string               */
 BYTE NSF[NFX_MAX_NSF]; /* default NSF for session               */
} NFX_RECEIVE_PARMS;

Note: You must continue processing events during an active fax session. Make sure that file I/O intensive operations do not interfere with the handling of events and cause the fax session to time out. Events should be processed within three seconds.