65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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class MessageListener;
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//==============================================================================
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/** The base class for objects that can be sent to a MessageListener.
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If you want to send a message that carries some kind of custom data, just
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create a subclass of Message with some appropriate member variables to hold
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your data.
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Always create a new instance of a Message object on the heap, as it will be
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deleted automatically after the message has been delivered.
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@see MessageListener, MessageManager, ActionListener, ChangeListener
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@tags{Events}
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*/
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class JUCE_API Message : public MessageManager::MessageBase
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{
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public:
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//==============================================================================
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/** Creates an uninitialised message. */
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Message() noexcept;
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~Message() override;
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using Ptr = ReferenceCountedObjectPtr<Message>;
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//==============================================================================
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private:
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friend class MessageListener;
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WeakReference<MessageListener> recipient;
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void messageCallback() override;
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// Avoid the leak-detector because for plugins, the host can unload our DLL with undelivered
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// messages still in the system event queue. These aren't harmful, but can cause annoying assertions.
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JUCE_DECLARE_NON_COPYABLE (Message)
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};
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} // namespace juce
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