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WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
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WINDEV Mobile
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Others
Stored procedures
Checks the existence of socket.
Remarks:
  • To check the connection validity, use SocketClientInfo to check the IP address of client socket and the port number.
  • The socket exists as long as the created socket was not closed by SocketClose.
  • If the communication is interrupted, SocketExist may still return a positive result even if the dialog is stopped.
Example
// Check the existence before the creation
IF SocketExist("MySocket") = False THEN
IF SocketCreate("MySocket", 8000) = False THEN
 Error("Creation error" + ErrorInfo(errMessage))
 END
ELSE
 SocketRead("MySocket", False)
END
Syntax
<Result> = SocketExist(<Socket name>)
<Result>: Boolean
  • True if the socket exists,
  • False otherwise.
<Socket name>: Character string
Name of socket to check.
For a WINDEV application, this name was defined:
WINDEV Caution: the socket name is case sensitive.
Remarks
AndroidAndroid Widget

Required permissions

The call to this function modifies the permissions required by the application.
Required permission : INTERNET
This permission allows the applications to open the network sockets.
Component: wd280com.dll
Minimum version required
  • Version 9
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