Question

How can I get a specific message on a specific method?

I’ve seen some examples and people use ‘ref’ ,but I dont understand it.

In delphi,for example,my function(method) must be declared in the Main Form class and next to the declaration I have to put the message

type   TForm1 = class(TForm)     ...   protected     procedure MessageHandler(var Msg:Tmessage);Message WM_WINSOCK_ASYNC_MSG; end; 

I need this in C# so I can use WSAAsyncSelect in my application

Check >my other Question< with bounty 550 reputation to understand what I mean

Answer 1

In .NET winforms, all messages go to WndProc, so you can override that:

    protected override void WndProc(ref Message m)     {         if (m.Msg == WM_WINSOCK_ASYNC_MSG)         {             // invoke your method         }         else         {             base.WndProc(ref m);         }     } 

If I have misunderstood, please say – but I think you would do well to avoid this low-level approach, and describe what you want to achieve – i.e. it might be that .Invoke/.BeginInvoke are more appropriate.