33 lines
538 B
C++
33 lines
538 B
C++
// Copyright (c) 1997-1999 Microsoft Corporation
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//
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// Generic callback mechanism
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//
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// 8-14-97 sburns
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#ifndef CALLBACK_HXX_INCLUDED
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#define CALLBACK_HXX_INCLUDED
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// abstract base class representing a callback function. To create
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// your own callback, subclass this class.
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class Callback
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{
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public:
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// returns a status code that may have meaning to the invoker.
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//
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// param - a user-defined value.
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virtual
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int
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Execute(void* param) = 0;
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};
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#endif // CALLBACK_HXX_INCLUDED
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