This message removes one, multiple, or all FIELDINFO structures from the container control.

param1
     PVOID   pFieldInfoArray   /*  Pointer to an array of pointers to FIELDINFO structures that are to be removed. */

param2
     USHORT  cNumFieldInfo     /*  Number of FIELDINFO structures to be removed. */
     USHORT  fRemoveFieldInfo  /*  Flags. */