How to create a Basic4ppc library

[Discorez]

Please, help me with events...

I created C# DLL with simple class for testing event:

using System;
using System.Collections.Generic;
using System.Text;

namespace EventHandlersTest
{
    public delegate void MyEventHandler();
        
    public class MyEvent
    {
        public event MyEventHandler SomeEvent;

        public void OnSomeEvent()
        {
            if (SomeEvent != null)
                SomeEvent();
        }

        public void Test(int X)
        {
                if (X == 10)
                    OnSomeEvent();
        }
    }
}

B4PPC code:
(ME - MyEvent.dll)

Sub App_Start
   Form1.Show
   ME.New1
End Sub

Sub Button1_Click
  ME.Test(10)
End Sub

Sub ME_OnSomeEvent
  Msgbox("SomeEvent!")
End Sub

But, if I clicked on Button1, event OnSomeEvent doesn't work.
How to correct?
:sign0085:

 

[Erel]

See how it is done in the example in the first post: http://www.b4x.com/forum/code-samples-tips/35-how-create-basic4ppc-library.html

 

[Discorez]

Erel, unfortunately, still it is not clear... In an example, event is anchored to already available event of ScrollBar, but in my case, event is required for the self class. I tried various variants, but I receive either an error, or event doesn't work in B4PPC...
I will be grateful, if somebody helps with example on a C #.

 

[agraham]

Like this I think. Compare it to the ScrollBar code.

namespace EventHandlersTest
{
         // at runtime tells Basic4ppc what event has occurred
        private object[] SomeEventEventObject;

 
        // at compile times identifies the event to Basic4ppc
        // at runtime Basic4ppc sets this to its event handler
       public event EventHandler SomeEvent; 

      
        public class MyEvent
        {
            SomeEventEventObject = new object[] { this, "SomeEvent" };
        }

        public void OnSomeEvent()
        {
            if (SomeEvent != null)
                SomeEvent();
        }

        public void Test(int X)
        {
                if (X == 10)
                    OnSomeEvent();
        }
    }
}

 

[Discorez]

agraham, Your example isn't compiled (~4 errors)
My project (VS 2008) in attach.

 

[agraham]

Sorry, I knocked it up from memory without testing it, but it's really not complicated.

    public class MyEvent
    {
        private object[] SomeEventEventObject;
        public event EventHandler SomeEvent;

       public MyEvent()
        {
             SomeEventEventObject = new object[] { this, "SomeEvent" };
        }

        public void OnSomeEvent()
        {
            if (SomeEvent != null)
                SomeEvent(SomeEventEventObject, null); 
        }

        public void Test(int X)
        {
            if (X == 10)
                OnSomeEvent();
        } 

    }

 

[Discorez]

agraham, many thanks!
All perfectly works! All problems was here -

SomeEvent(SomeEventEventObject, null);

I did a call SomeEvent() without arguments...