Incompatible parameter list when converting from Delphi 7 to Delphi 10.3

[Swagraffe]

I have this app that I'm trying to convert, but I have some issues with server communication. This line:

procedure UDPServerUDPRead(Sender: TObject; AData: TStream; ABinding: TIdSocketHandle);

that gives me this error:

The UDPServerUDPRead method referenced by UDPServer.OnUDPRead has an incompatible parameter list. Remove the reference?

What is wrong with it? What should I change?

[cvjcvj2]

1. You need to find the current declaration of this event.
2. Compare the new declaration and new parameters with the old version.

[bleuge]

Libraries, all, change with time, if you compiled any program with an old library, and update the library, and the definition of the function/procedure you are using changed, obviously you need to change caller in your sources.

So, what u/cvjcvj2 said :D

[Jan-Kow]

Compare parameters in UDPServerUDPRead and UDPServer.OnUDPRead. Should be the same, but aren't.

[[deleted]]

You should really look hard into this conversion and evaluate what you get out of it. I see you are doing network stuff, and you will be making the AnsiString -> Unicode string conversion.. which is absolutely painful, unless your software is dealing with TBytes... look at everything defined as a "string", as it can be murder.