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Alex Rivera
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When reading documentation on functions from external libraries of different kinds I have always seen the documentation state that a variable has to be [IN/OUT]. Could someone give me a detailed understanding on how [IN/OUT] relates to parameters of a function being passed by reference or by value. Here is an example of a function I have come across that tells me it needs an [IN/OUT] parameter: Prototype: ULONG GetActivationState( ULONG * pActivationState ); Parameters Type: ULONG* Variable : pActivationState Mode : IN/OUT
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