Gets the full path of the current directory for the requesting process on the specified drive.

#define INCL_DOSFILEMGR
#include <os2.h>

ULONG     disknum;  /*  The drive number. */
PBYTE     pBuf;     /*  Address of the full path of the current directory. */
PULONG    pcbBuf;   /*  Address of the length, in bytes, of the pBuf buffer. */
APIRET    ulrc;     /*  Return Code. */

ulrc = DosQueryCurrentDir(disknum, pBuf, pcbBuf);