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Stored procedures
WLanguage procedure called by SocketConnect
WLanguage procedure written in browser code ("callback"), called by SocketConnect. Name of the procedure called when the connection to the server is established. This procedure is used to send a message to the server with SocketWrite.
Example
SocketConnect("client", "ws[s]://<WebSocketServerAddress>", OnSocketEvent)
 
INTERNAL PROCEDURE OnSocketEvent(nEvent, sMessage)
 
SWITCH nEvent
 
CASE SocketOpening
SocketWrite("client", "Send message from the browser.")
 
CASE SocketMessage
Info("Server message received: " + sMessage)
 
CASE SocketClosing
Info("Socket closed", sMessage)
 
CASE SocketError
Error("Socket error")
END
END
Syntax
SocketConnect_Callback(<Event> , <Message>)
<Event>: Integer constant
Corresponds to one of the following constants:
SocketClosingThe socket is closed. The <Message> parameter contains a code that indicates the reason for closing.
SocketErrorAn error occurred during the communication with the server. The <Message> parameter is always empty.
SocketMessageThe socket received a message. The <Message> parameter contains data relative to the message.
SocketOpeningThe socket is connected to the server. You have the ability to send messages.
<Message>: Character string
Response from the server according to the <Event>.
Business / UI classification: Neutral code
Component: WDJS.DLL
Minimum version required
  • Version 22
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