DosGetProcAddr

#define INCL_DOSMODULEMGR

USHORT  rc = DosGetProcAddr(ModuleHandle, ProcName, ProcAddress);

HMODULE          ModuleHandle;  /* Module handle */
PSZ              ProcName;      /* Module name string */
PFN FAR *        ProcAddress;   /* Procedure address (returned) */

USHORT           rc;            /* return code */