AddressOf Operator

AddressOf Operator

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Syntax

     AddressOf procedureName 

procedureName (required)

The name of a procedure or method to be referenced as a delegate

Description

The AddressOf operator returns a procedure delegate instance that references a specific procedure. Common uses of this operator include the following:

• To bind event handlers to events through the AddHandler statement:

       AddHandler Form1.Click, AddressOf Me.Form1_Click 

  
  

• To create delegate objects, as in:

       Dim holdDelegate As Delegate = _        New Delegate(AddressOf someClass.SomeMethod) 

  
  

• To pass the address of a callback function to a Win32 API function:

       Call TypicalAPI(1, AddressOf MyCallbackRoutine) 

  
  

Version Differences

In VB 6, the procedure must reside in a standard code module, a restriction no longer enforced with .NET.