| 
| 
const  | Qore::TCSADRAIN = TCSADRAIN | 
|   | drain output, then change 
  | 
|   | 
| 
const  | Qore::TCSAFLUSH = TCSAFLUSH | 
|   | drain output, flush input 
  | 
|   | 
| 
const  | Qore::TCSANOW = TCSANOW | 
|   | make change immediate 
  | 
|   | 
| 
const  | Qore::TCSASOFT = TCSASOFT | 
|   | flag - don't alter hardware state 
  | 
|   | 
If any of the constants in this group is not defined on the host system, then it will be assigned to 0 in Qore.