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MESSAGE

Route a method call to another Method
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 Syntax

        MESSAGE <MessageName>   METHOD <MethodName>( [<params,...>] )  
        MESSAGE <MessageName>() METHOD <MethodName>( [<params,...>] )  

 Arguments

        <MessageName>    The pseudo-method name to define      

        <MethodName>     The method to create and call when 
                  <MessageName> is invoked.

        <params,...>     Optional parameter list for the method    

 Description

      The MESSAGE command is a seldom-used feature that lets you re-route
      a call to a method with a different name. This can be necessary if
      a method name conflicts with a public function that needs to be
      called from within the class methods.

      For example, your app may have a public function called BeginPaint()
      that is used in painting windows. It would also be natural to have
      a  Window class method called :BeginPaint() that the application can
      call. But within the class method you would not be able to call the
      public function because internally methods are based on static
      functions (which hide public functions of the same name).

      The MESSAGE command lets you create the true method with a different
      name (::xBeginPaint()), yet still allow the ::BeginPaint() syntax
      to call ::xBeginPaint().  This is then free to call the public
      function BeginPaint().

 Examples

  
      CLASS TWindow
         DATA   hWnd, nOldProc
         METHOD New( ) CONSTRUCTOR
         MESSAGE BeginPaint METHOD xBeginPaint()
      ENDCLASS
  

Status

      Ready

 Compliance

      MESSAGE is a Harbour extension.

 Platforms

      All



See Also: METHOD DATA CLASS Object Oriented Programming

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