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Diffstat (limited to '')
| -rw-r--r-- | mozglue/misc/WindowsDpiAwareness.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/mozglue/misc/WindowsDpiAwareness.h b/mozglue/misc/WindowsDpiAwareness.h new file mode 100644 index 0000000000..104b135536 --- /dev/null +++ b/mozglue/misc/WindowsDpiAwareness.h @@ -0,0 +1,41 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ + +#ifndef WindowsDpiAwareness_h_ +#define WindowsDpiAwareness_h_ + +#include <windows.h> + +#if !defined(DPI_AWARENESS_CONTEXT_DECLARED) && \ + !defined(DPI_AWARENESS_CONTEXT_UNAWARE) + +DECLARE_HANDLE(DPI_AWARENESS_CONTEXT); + +typedef enum DPI_AWARENESS { + DPI_AWARENESS_INVALID = -1, + DPI_AWARENESS_UNAWARE = 0, + DPI_AWARENESS_SYSTEM_AWARE = 1, + DPI_AWARENESS_PER_MONITOR_AWARE = 2 +} DPI_AWARENESS; + +# define DPI_AWARENESS_CONTEXT_UNAWARE ((DPI_AWARENESS_CONTEXT)-1) +# define DPI_AWARENESS_CONTEXT_SYSTEM_AWARE ((DPI_AWARENESS_CONTEXT)-2) +# define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE ((DPI_AWARENESS_CONTEXT)-3) + +# define DPI_AWARENESS_CONTEXT_DECLARED +#endif // (DPI_AWARENESS_CONTEXT_DECLARED) + +#if WINVER < 0x0605 +WINUSERAPI DPI_AWARENESS_CONTEXT WINAPI GetThreadDpiAwarenessContext(); +WINUSERAPI BOOL WINAPI AreDpiAwarenessContextsEqual(DPI_AWARENESS_CONTEXT, + DPI_AWARENESS_CONTEXT); +#endif /* WINVER < 0x0605 */ +typedef DPI_AWARENESS_CONTEXT(WINAPI* SetThreadDpiAwarenessContextProc)( + DPI_AWARENESS_CONTEXT); +typedef BOOL(WINAPI* EnableNonClientDpiScalingProc)(HWND); +typedef int(WINAPI* GetSystemMetricsForDpiProc)(int, UINT); + +#endif |