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61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// 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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#include "base/win/core_winrt_util.h"
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#include <roapi.h>
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namespace {
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void* LoadComBaseFunction(const char* function_name) {
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static HMODULE const handle = ::LoadLibrary(L"combase.dll");
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return handle ? ::GetProcAddress(handle, function_name) : nullptr;
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}
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decltype(&::RoActivateInstance) GetRoActivateInstanceFunction() {
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static decltype(&::RoActivateInstance) const function =
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reinterpret_cast<decltype(&::RoActivateInstance)>(
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LoadComBaseFunction("RoActivateInstance"));
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return function;
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}
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decltype(&::RoGetActivationFactory) GetRoGetActivationFactoryFunction() {
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static decltype(&::RoGetActivationFactory) const function =
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reinterpret_cast<decltype(&::RoGetActivationFactory)>(
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LoadComBaseFunction("RoGetActivationFactory"));
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return function;
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}
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} // namespace
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namespace base {
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namespace win {
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bool ResolveCoreWinRTDelayload() {
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// TODO(finnur): Add AssertIOAllowed once crbug.com/770193 is fixed.
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return GetRoActivateInstanceFunction() && GetRoGetActivationFactoryFunction();
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}
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HRESULT RoGetActivationFactory(HSTRING class_id,
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const IID& iid,
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void** out_factory) {
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decltype(&::RoGetActivationFactory) get_factory_func =
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GetRoGetActivationFactoryFunction();
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if (!get_factory_func)
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return E_FAIL;
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return get_factory_func(class_id, iid, out_factory);
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}
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HRESULT RoActivateInstance(HSTRING class_id, IInspectable** instance) {
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decltype(&::RoActivateInstance) activate_instance_func =
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GetRoActivateInstanceFunction();
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if (!activate_instance_func)
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return E_FAIL;
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return activate_instance_func(class_id, instance);
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}
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} // namespace win
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} // namespace base
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