CLOSE Command¶
Material prepared from M Programming Book (Page 162) [WALTERS1997] and GT.M Programmer’s Guide
Description¶
The CLOSE command closes a connection between the M process and I/O device. If the connection does not exist, the close command is ignored. Parameters can be specified for the process to manipulate the device with as the connection is closed.
Examples¶
CLOSE "/dev/thermometer"
closes a thermometer device
CLOSE "/dev/thermometer":(READY)
closes a thermometer device and sets it as ready
CLOSE 1
closes the printer
CLOSE 5
closes the external communications port
See Devices for a list of device identifiers.