Visible to Intel only — GUID: GUID-91D8702F-ED39-4B0C-9F91-4BBC41DE3B64
Visible to Intel only — GUID: GUID-91D8702F-ED39-4B0C-9F91-4BBC41DE3B64
SPORT_SET_STATE
Serial Port I/O Function: Sets the baud rate, parity, data bits setting, and stop bits setting of the communications port. This routine is only available for Windows.
Module
USE IFPORT
result = SPORT_SET_STATE (port [,baud] [,parity] [,dbits] [,sbits])
port |
(Input) Integer. The port number. |
baud |
(Input; optional) Integer. The baud rate of the port. |
parity |
(Input; optional) Integer. The parity setting of the port (0-4 = no, odd, even, mark, space). |
dbits |
(Input; optional) Integer. The data bits for the port. |
sbits |
(Input; optional) Integer. The stop bits for the port (0, 1, 2 = 1, 1.5, 2). |
Results
The result type is INTEGER(4). The result is zero if successful; otherwise, a Windows* error value.
The following restrictions apply:
The number of data bits must be 5 to 8 bits.
The use of 5 data bits with 2 stop bits is an invalid combination, as is 6, 7, or 8 data bits with 1.5 stop bits.
This routine must not be used when any I/O is pending. Since a read operation is always pending after any I/O has been started, you must first call SPORT_CANCEL_IO before port parameters can be changed.
Example
USE IFPORT
INTEGER(4) iresult
iresult = SPORT_SET_STATE( 2, 9600, 0, 7, 0 )
END
See Also
Communications, Communications Functions, and SetCommState in the Microsoft* Platform SDK