MC-Basic:ISOPEN

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Returns the status of port , defined by (<DeviceHandle>) .
<DeviceHandle>: A handle to a specified port.

Syntax

?ISOPEN(<DeviceHandle>)

Availability

from 0.4.0.22

Type

<DeviceHandle>: Long
<return value>: Long

Range

<DeviceHandle>: 1 to 255
<return value>:     0 – closed

1- open

Scope

Configuration, Task or Terminal

Limitations

Read only

Examples

-->Open COM2 BaudRate=9600 Parity=0 DataBits=8 StopBit=1  As #2

-->?isOpen(2)

1

-->close #2

-->?isOpen(2)

0

-->Open "File1.PRG" Mode="w" as #1

-->?isOpen(1)

1

See Also