[Overview][Constants][Types][Procedures and functions][Variables][Index] | Reference for unit 'oldlinux' (#rtl)

# TCFlush

Terminal control: Discard data buffer

## Declaration

Source position: oldlinux.pp line 1505

`function TCFlush(`
`fd: LongInt;`
`qsel: LongInt`
`):Boolean;`

## Description

TCFlush discards all data sent or received to/from file descriptor fd. QSel indicates which queue should be discard. It can be one of the following pre-defined values :

TCIFLUSH
  input buffer
TCOFLUSH
  output buffer
TCIOFLUSH
  both input and output buffers

The function returns True if the call was succesfull, False otherwise.

## Errors

Errors are reported in LinuxError.

## See also

TCDrain |  | Terminal control: Wait till all data was transmitted
TCFlow |  | Terminal control: Suspend transmission of data
TCGetAttr |  | Terminal Control: Get terminal attributes
TCGetPGrp |  | Terminal control: Get process group
TCSendBreak |  | Terminal control: Send break
TCSetAttr |  | Terminal control: Set attributes
TCSetPGrp |  | Terminal control: Set process group
TTYName |  | Terminal control: Get terminal name
IsATTY |  | Check if filehandle is a TTY (terminal)

Documentation generated on: Feb 26 2014