Ping (Function)

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Ping (Function)

In french: Ping

Checks whether a network address can be reached by using the ICMP protocol (similar to the PING network utility).

Versions 24 and later

This function is now available for the WEBDEV sites in Windows.

New in version 24

This function is now available for the WEBDEV sites in Windows.

Example

IF Ping("www.mysite.com") = True THEN
Info("The server is available. You can see the News")
ELSE
Info("Server temporarily unavailable")
END

Syntax

<Result> = Ping(<Address> [, <Maximum duration>])

<Result>: Boolean

True if the sought address is "visible" on the network,
False otherwise.

<Address>: Character string (with quotes)

Address for which the network connection must be checked. This IP address can have the following format:
Address in XXX.XXX.XXX.XXX format (125.5.110.100 for example). This syntax is recommended.
DNS address of the computer (www.windev.com for instance).
Address returned by NetIPAddress

<Maximum duration>: Optional integer or optional Duration

Maximum duration allowed to find the address (in milliseconds). This parameter can correspond to:
an integer corresponding to the number of milliseconds,
a Duration variable,
Versions 23 and later
the direct indication of duration (1 s or 10 ms for example).
New in version 23
the direct indication of duration (1 s or 10 ms for example).
the direct indication of duration (1 s or 10 ms for example).
This duration is set to 1000 by default.

Remarks

Ping is mainly a tool for network diagnostic. It does not guarantee that:

the computer will respond on a given port (to do so, use SocketConnect).
the computer is broken. Indeed, if the ping service is stopped on the computer, this computer will stop responding while it is still operating properly.

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