зеркало из https://github.com/mozilla/gecko-dev.git
38 строки
1.2 KiB
C
38 строки
1.2 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_mscom_VTableBuilder_h
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#define mozilla_mscom_VTableBuilder_h
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#include <stdint.h>
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#include <unknwn.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/**
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* This function constructs an interface with |aVtblSize| entries, where the
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* IUnknown methods are valid and redirect to |aUnk|. Other than the IUnknown
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* methods, the resulting interface is not intended to actually be called; the
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* remaining vtable entries are null pointers to enforce that.
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*
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* @param aUnk The IUnknown to which the null vtable will redirect its IUnknown
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* methods.
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* @param aVtblSize The total size of the vtable, including the IUnknown
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* entries (thus this parameter must be >= 3).
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* @return The resulting IUnknown, or nullptr on error.
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*/
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IUnknown* BuildNullVTable(IUnknown* aUnk, uint32_t aVtblSize);
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void DeleteNullVTable(IUnknown* aUnk);
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#if defined(__cplusplus)
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}
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#endif
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#endif // mozilla_mscom_VTableBuilder_h
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