Searches an environment segment for an environment variable.
#define INCL_DOSFILEMGR #define INCL_DOSMISC #include <os2.h> PSZ pszName; /* Address of the name of the environment variable. */ PSZ *ppszValue; /* A pointer to the PSZ in which a pointer to the environment string is returned by the system. */ APIRET ulrc; /* Return Code. */ ulrc = DosScanEnv(pszName, ppszValue);