Delphi dynamically calling different functions

  TNodeFunction = function(AInput: String): String;


function Func1(AInput: String): String;
   result := AInput;

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Then I can do this:
  SomeFunc,: TNodeFunction;
     SomeFunc = Func1;
So far it is good.

But my problem is that a certain place I need to detect in my program that I gave value to SomeFunc or not.

I tried this :
If SomeFunc<> nil Then <- but I get this error [dcc32 Error]  E2008 Incompatible types

Thank you very much for your help!
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ste5anSenior DeveloperCommented:
You need to use If Assigned(SomeFunc).

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