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- Miscellaneous
- Transmission between two stations using different string formats (Unicode and ANSI)
- Using an external library: RXTX
- Features specific to Android and Android widget
Writes a character string to the output buffer of the specified serial port, parallel port or infrared port. The end of writing can be checked by sInExitQueue. Remarks: - The port must be opened beforehand (sOpen).
 Infrared ports are not supported.    Only serial ports are supported.  This function returns information regarding the server.
PortNum = sOpen("COM2", 2000, 2000)
IF PortNum <> 0 THEN
sMessage is string
sWrite(PortNum, sMessage)
LOOP
IF sInExitQueue(2) = 0 THEN BREAK
END
Info("End of write operation")
END
Sintaxis
Writing a buffer into the output buffer of a port Ocultar los detalles
<Result> = sWrite(<Port number> , <Buffer to write>)
<Result>: Integer - Number of characters written,
- 0 if timeout is over and if the writing was not performed.
<Port number>: Integer Identifier of the port used:- Port number:
- Serial port number: 1, 2, 3, ... 32 for COM1, COM2, COM3, ... COM32.
- Parallel port number: -1, -2, -3 or -4 for LPT1, LPT2, LPT3 or LPT4.
- Infrared port number: 1, 2, 3, ... 32 for IR1, IR2, IR3, ... IR32.
Infrared ports are not supported.
- Port identifier returned by sOpen (if this function was called with a port name).
Only this type of parameter is available.
<Buffer to write>: Buffer Buffer that must be written into the output buffer. Observaciones - sOpen has no effect if the port was not opened by sWrite.
- A 32-bit application is locked during the duration of the transfer. To avoid this lock, the timeout between two write operations must be specified in sOpen. When the timeout is over and if the writing was not performed, sWrite returns 0.
sWrite is a blocking function during the transfer even if a timeout was specified in sOpen. - The time required to transfer the string depends on the transmission speed.
- The string or the buffer is automatically transferred.
- WLanguage does not support control signals.
- The time to wait for a character to be read or written is specified with sOpen.
- If this time is set to 1s when reading 1024 bytes, the waiting time will be 1024s.
- If this time is set to "-1s" when reading 1024 bytes, the waiting time will be 1s.
This prevents lock problems when reading from or writing to the print port.
Transmission between two stations using different string formats (Unicode and ANSI) Some conversions are required to perform a transmission between two computers that use different formats of character strings (Windows (ANSI) and Windows Mobile (UNICODE) for example): | | | | | Format of character strings on the current computer | Write operation
(sWrite function) | Read operation
(sRead) | | String in ANSI format | String in UNICODE format | ANSI
(PC running Windows for example) | The character string will be in ANSI format | No conversion is required | Conversion required (UnicodeToAnsi) | | Unicode | The character string will be in Unicode format | Conversion required (AnsiToUnicode) | No conversion is required |
Clasificación Lógica de negocio / UI: Lógica de negocio
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