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DPP-master/docpages/example_programs/misc/collect_reactions.md

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+\page collecting-reactions Collecting Reactions
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+D++ comes with many useful helper classes, but amongst these is something called dpp::collector. Collector is a template which can be specialised to automatically collect objects of a predetermined type from events for a specific interval of time. Once this time period is up, or the class is otherwise signalled, a method is called with the complete set of collected objects.
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+In the example below, we will use it to collect all reactions on a message.
+
+\include{cpp} collect_reactions.cpp
+