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55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_WIN_CORE_WINRT_UTIL_H_
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#define BASE_WIN_CORE_WINRT_UTIL_H_
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#include <hstring.h>
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#include <inspectable.h>
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#include <roapi.h>
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#include <windef.h>
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#include "base/base_export.h"
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#include "base/strings/string16.h"
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#include "base/win/scoped_hstring.h"
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namespace base {
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namespace win {
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// Provides access to Core WinRT functions which may not be available on
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// Windows 7. Loads functions dynamically at runtime to prevent library
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// dependencies.
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BASE_EXPORT bool ResolveCoreWinRTDelayload();
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// The following stubs are provided for when component build is enabled, in
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// order to avoid the propagation of delay-loading CoreWinRT to other modules.
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BASE_EXPORT HRESULT RoInitialize(RO_INIT_TYPE init_type);
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BASE_EXPORT void RoUninitialize();
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BASE_EXPORT HRESULT RoGetActivationFactory(HSTRING class_id,
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const IID& iid,
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void** out_factory);
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BASE_EXPORT HRESULT RoActivateInstance(HSTRING class_id,
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IInspectable** instance);
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// Retrieves an activation factory for the type specified.
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template <typename InterfaceType, char16 const* runtime_class_id>
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HRESULT GetActivationFactory(InterfaceType** factory) {
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ScopedHString class_id_hstring = ScopedHString::Create(runtime_class_id);
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if (!class_id_hstring.is_valid())
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return E_FAIL;
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return base::win::RoGetActivationFactory(class_id_hstring.get(),
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IID_PPV_ARGS(factory));
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}
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} // namespace win
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} // namespace base
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#endif // BASE_WIN_CORE_WINRT_UTIL_H_
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