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);