Coding a delegate in C#

Question

I use a third party dll which returns information to my code in VB by way of a function in my code which I provide the dll with the address :
            result = wLib.Initialize(Key, AddressOf ApiGuiCallback)
wLib is the third party dll, ApiGuiCallback is my function to receive the data from the dll.

  My ApiGuiCallback Function is coded as such:
Private Function ApiGuiCallback(ByVal state As UInteger, _
ByVal msg As GuiMessage, ByVal buff As ImageInfo) As Integer

   How do I code this in C# so that the dll will execute my ApiGuiCallback function upon it's completion?

Denny

Baimey Rajesh · Answer

An example VB --- Sub TestFunc( ByVal x As Integer, ByRef y As Integer, ByRef z As Integer) C#--- void TestFunc(int x, ref int y, out int z) When Accept variable number of arguments... C#----int Sum( params int[] nums) int total = Sum(4, 3, 2, 1); VB---- Function Sum(ByVal ParamArray nums As Integer()) As Integer Dim total As Integer = Sum(4, 3, 2, 1) VB---- AddHandler MsgArrivedEvent, AddressOf My_MsgArrivedCallback ' Won't throw an exception if obj is Nothing RaiseEvent MsgArrivedEvent("Test message") RemoveHandler MsgArrivedEvent, AddressOf My_MsgArrivedCallback C#----MsgArrivedEvent += new MsgArrivedEventHandler(My_MsgArrivedEventCallback); MsgArrivedEvent("Test message"); // Throws exception if obj is null MsgArrivedEvent -= new MsgArrivedEventHandler(My_MsgArrivedEventCallback); Please post back if this is not wat you want else mark if it helps

Coding a delegate in C#

Answers (1)