CF_DSPTEXT

If CF_DSPTEXT is specified for cfFormat then aFIELD must be an atom that represents the string, FIELD. The PS position must be specified in a previous call to the Set Presentation Space Service Condition function. This version will return information only about the field which contains that position. The information will be returned in a WM_DDE_DATA(hData, aFIELD) message where:
hData
Represents
typedef struct tagFINDFIELD
{
  unsigned char
  data[sizeof(DDEDATA)-1];
  unsigned short uFieldStart;   //Field start position
  unsigned short uFieldLength;  //Field Length
  unsigned char  cAttribute;    //Attribute character value
  unsigned char  ubReserved;    //reserved, no information for client
} FINDFIELD;

typedef union tagDDE_FINDFIELD
{
  DDEDATA   DDEdata;
  FINDFIELD DDEfield;
} DDE_FINDFIELD, *lpDDE_FINDFIELD;