blob: 5a362a97c914efec054198f4685fdad2e40d1482 [file] [log] [blame]
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "rtc_base/win/hstring.h"
#include <libloaderapi.h>
#include <winstring.h>
namespace {
FARPROC LoadComBaseFunction(const char* function_name) {
static HMODULE const handle =
::LoadLibraryExW(L"combase.dll", nullptr, LOAD_LIBRARY_SEARCH_SYSTEM32);
return handle ? ::GetProcAddress(handle, function_name) : nullptr;
decltype(&::WindowsCreateString) GetWindowsCreateString() {
static decltype(&::WindowsCreateString) const function =
return function;
decltype(&::WindowsDeleteString) GetWindowsDeleteString() {
static decltype(&::WindowsDeleteString) const function =
return function;
} // namespace
namespace webrtc {
bool ResolveCoreWinRTStringDelayload() {
return GetWindowsDeleteString() && GetWindowsCreateString();
HRESULT CreateHstring(const wchar_t* src, uint32_t len, HSTRING* out_hstr) {
decltype(&::WindowsCreateString) create_string_func =
if (!create_string_func)
return E_FAIL;
return create_string_func(src, len, out_hstr);
HRESULT DeleteHstring(HSTRING hstr) {
decltype(&::WindowsDeleteString) delete_string_func =
if (!delete_string_func)
return E_FAIL;
return delete_string_func(hstr);
} // namespace webrtc