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dpi_utils.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "Windows.h"
6
7 #ifndef FLUTTER_SHELL_PLATFORM_WINDOWS_DPI_UTILS_H_
8 #define FLUTTER_SHELL_PLATFORM_WINDOWS_DPI_UTILS_H_
9
10 namespace flutter {
11
12 constexpr UINT kDefaultDpi = 96;
13
14 /// Returns the DPI for |hwnd|. Supports all DPI awareness modes, and is
15 /// backward compatible down to Windows Vista. If |hwnd| is nullptr, returns the
16 /// DPI for the primary monitor. If Per-Monitor DPI awareness is not available,
17 /// returns the system's DPI.
18 UINT GetDpiForHWND(HWND hwnd);
19
20 /// Returns the DPI of a given monitor. Defaults to 96 if the API is not
21 /// available.
22 UINT GetDpiForMonitor(HMONITOR monitor);
23
24 } // namespace flutter
25
26 #endif // FLUTTER_SHELL_PLATFORM_WINDOWS_DPI_UTILS_H_
flutter
Definition: accessibility_bridge_windows.cc:11
flutter::GetDpiForHWND
UINT GetDpiForHWND(HWND hwnd)
Definition: dpi_utils.cc:128
flutter::GetDpiForMonitor
UINT GetDpiForMonitor(HMONITOR monitor)
Definition: dpi_utils.cc:132
flutter::kDefaultDpi
constexpr UINT kDefaultDpi
Definition: dpi_utils.h:12