| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "stdafx.h" |
| |
| #include <windows.h> |
| #include <wrl\implements.h> |
| #include <wrl\wrappers\corewrappers.h> |
| #include <windows.foundation.h> |
| #include <windows.graphics.display.h> |
| #include "base/win/scoped_com_initializer.h" |
| #include "winrt_utils.h" |
| |
| #pragma comment(lib, "runtimeobject.lib") |
| |
| extern "C" { |
| |
| __declspec(dllexport) float GetModernUIScale() { |
| base::win::ScopedCOMInitializer com_init; |
| Microsoft::WRL::ComPtr< |
| ABI::Windows::Graphics::Display::IDisplayPropertiesStatics> |
| display_properties; |
| if (SUCCEEDED(winrt_utils::CreateActivationFactory( |
| RuntimeClass_Windows_Graphics_Display_DisplayProperties, |
| display_properties.GetAddressOf()))) { |
| ABI::Windows::Graphics::Display::ResolutionScale resolution_scale; |
| if (SUCCEEDED(display_properties->get_ResolutionScale(&resolution_scale))) |
| return static_cast<float>(resolution_scale) / 100.0f; |
| } |
| return 1.0f; |
| } |
| |
| } |
