| cchCln | cchOpn | cchRd | cchRew | cchUnch | cchWt |
| int | cchCln( int cHndl ) |
| int | cchOpn( char* fileName ) |
| int | cchRd( int cHndl, char* data, int* len ) |
| int | cchRew( int cHndl ) |
| int | cchUnch( int cHndl, long id ) |
| int | cchWt( int cHndl, char* dataP, int len, long id ) |