This function defines a hypertext inform link, which sends an HM_INFORM message to the application with a res= attribute. It also corresponds to the link tag with reftype=inform.

#define INCL_DDF
#include <os2.h>

HDDF     hddf;             /*  Handle to DDF returned by DdfInitialize. */
PCSZ     pszText;          /*  Hypertext phrase. */
ULONG    resInformNumber;  /*  Res number associated with this hypertext field. */
BOOL     rc;               /*  Success indicator. */

rc = DdfInform(hddf, pszText, resInformNumber);