This function begins a definition list in the DDF buffer; it corresponds to the :dl. (definition list) tag.

#define INCL_DDF
#include <os2.h>

HDDF     hddf;        /*  Handle to DDF returned by DdfInitialize. */
ULONG    ulWidthDT;   /*  Width of the definition term. */
ULONG    fBreakType;  /*  Type of line break to use. */
ULONG    fSpacing;    /*  Spacing between definitions. */
BOOL     rc;          /*  Success indicator. */

rc = DdfBeginList(hddf, ulWidthDT, fBreakType,
       fSpacing);