.portset Method

Function:	Sets the I/O port specified by the num argument to the state specified by the state argument.
Syntax:	io.portset(num as pl_io_port_num, state as byte)
Returns:	---
See Also:	Line/Port Manipulation Without Preselection, io.portget

Part	Description
num	See the list of pl_io_port_num constants in the platform specifications.
state	0-255. Each bit of this value corresponds to one member I/O line of the 8-bit port.

Details

No line preselection with the io.portnum property is required and the value of io.portnum will not be changed.

There are a few situations in which an exception may be thrown when invoking this method. For more information, see Handling Exceptions.

Exception	Root Cause(s)
std::invalid_argument	The selected port number is invalid. An I/O line number of the selected port number is invalid.
std::system_error	There was an error reading the value of the selected port.