OPENHOST: Difference between revisions
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* Valid {{Parameter|hostHandle}} values are negative numbers. | * Valid {{Parameter|hostHandle}} values are negative numbers. | ||
* If the syntax is correct but they fail to begin/connect a {{Parameter|hostHandle}} of 0 is returned. | * If the syntax is correct but they fail to begin/connect a {{Parameter|hostHandle}} of 0 is returned. | ||
* Always check if the handle returned is 0 (failed) before continuing. | * Always check if the handle returned is 0 (failed) before continuing. | ||
* [[CLOSE]] {{Parameter|hostHandle}} closes the host. A failed handle value of 0 does not need to be closed. | * [[CLOSE]] {{Parameter|hostHandle}} closes the host. A failed handle value of 0 does not need to be closed. | ||
| Line 20: | Line 19: | ||
* [[_OPENCONNECTION]], [[_OPENCLIENT]] | * [[_OPENCONNECTION]], [[_OPENCLIENT]] | ||
* [[_CONNECTED]], [[_CONNECTIONADDRESS]] | * [[_CONNECTED]], [[_CONNECTIONADDRESS]] | ||
* [[Email Demo]], [[Inter-Program Data Sharing Demo]] | * [[Email Demo]], [[Inter-Program Data Sharing Demo]] | ||
* [[Downloading Files]] | * [[Downloading Files]] | ||
{{PageNavigation}} | {{PageNavigation}} | ||
Latest revision as of 00:51, 29 January 2023
The _OPENHOST function opens a Host which listens for new connections and returns a Host status handle.
Syntax
- hostHandle = _OPENHOST("TCP/IP:8080")
Description
- Creates an Illegal Function Call error if called with a string argument of the wrong syntax.
- The port used in the syntax example is 8080.
- Valid hostHandle values are negative numbers.
- If the syntax is correct but they fail to begin/connect a hostHandle of 0 is returned.
- Always check if the handle returned is 0 (failed) before continuing.
- CLOSE hostHandle closes the host. A failed handle value of 0 does not need to be closed.
See also
- _OPENCONNECTION, _OPENCLIENT
- _CONNECTED, _CONNECTIONADDRESS
- Email Demo, Inter-Program Data Sharing Demo
- Downloading Files