77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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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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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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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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/** An interface to allow an AudioProcessor to send and receive VST specific calls from
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the host.
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@tags{Audio}
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*/
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struct VSTCallbackHandler
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{
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virtual ~VSTCallbackHandler() = default;
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/** This is called by the VST plug-in wrapper when it receives unhandled
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plug-in "can do" calls from the host.
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*/
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virtual pointer_sized_int handleVstPluginCanDo (int32 index,
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pointer_sized_int value,
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void* ptr,
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float opt)
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{
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ignoreUnused (index, value, ptr, opt);
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return 0;
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}
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/** This is called by the VST plug-in wrapper when it receives unhandled
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vendor specific calls from the host.
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*/
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virtual pointer_sized_int handleVstManufacturerSpecific (int32 index,
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pointer_sized_int value,
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void* ptr,
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float opt) = 0;
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// Note: VS2013 prevents a "using" declaration here
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/** The host callback function type. */
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typedef pointer_sized_int (VstHostCallbackType) (int32 opcode,
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int32 index,
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pointer_sized_int value,
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void* ptr,
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float opt);
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/** This is called once by the VST plug-in wrapper after its constructor.
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You can use the supplied function to query the VST host.
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*/
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virtual void handleVstHostCallbackAvailable (std::function<VstHostCallbackType>&& callback)
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{
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ignoreUnused (callback);
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}
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};
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} // namespace juce
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