Returns the fully-qualified drive, path, file name, and extension associated with the referenced module handle.

#define INCL_DOSMODULEMGR
#include <os2.h>

HMODULE    hmod;    /*  The handle of the dynamic link module that is being referenced. */
ULONG      cbName;  /*  The maximum length of the buffer, in bytes, where the name will be stored. */
PCHAR      pch;     /*  The address of the buffer where the file specification of the module are returned. */
APIRET     ulrc;    /*  Return Code. */

ulrc = DosQueryModuleName(hmod, cbName, pch);