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NAME
- PRD_PRTCOMMAND
-
send a command to the printer
FUNCTION
This function sends a command to either the parallel or serial device. The printer device maps this command to the control code set of the current printer. The commands supported can be found with the printer.device/Write command. All printers may not support all functions.
INPUTS
IOPrtCmdReq
- io_Message
-
mn_ReplyPort set
- io_Device
-
preset by OpenDevice
- io_Unit
-
preset by OpenDevice
- io_Command
-
PRD_PRTCOMMAND
- io_PrtCommand
-
the actual command number
- io_Parm0
-
parameter for the command
- io_Parm1
-
parameter for the command
- io_Parm2
-
parameter for the command
- io_Parm3
-
parameter for the command
RESULT
Errors. If the PRD_PRTCOMMAND succeeded, then io_Error will be zero. Otherwise io_Error will be non-zero. An error of -1 indicates that the command is not supported by the current printer driver. This could be used to check if the connected printer supports a particular command (italics for example).
SEE ALSO
printer.device/Write printer.h, parallel.device, Preferences