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-rw-r--r--mozglue/misc/WindowsDpiAwareness.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/mozglue/misc/WindowsDpiAwareness.h b/mozglue/misc/WindowsDpiAwareness.h
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+++ b/mozglue/misc/WindowsDpiAwareness.h
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+/* -*- 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)
+
+typedef DPI_AWARENESS_CONTEXT(WINAPI* SetThreadDpiAwarenessContextProc)(
+ DPI_AWARENESS_CONTEXT);
+typedef BOOL(WINAPI* EnableNonClientDpiScalingProc)(HWND);
+typedef int(WINAPI* GetSystemMetricsForDpiProc)(int, UINT);
+
+#endif