init

2021-02-05 01:39:51 +00:00
parent 666067a36c
commit 45a9eb9cd2
73 changed files with 2669 additions and 0 deletions
@@ -0,0 +1,47 @@
+using Microsoft.Windows.Sdk;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public static class SystemInformationHelper
+    {
+        private const int SM_CXSCREEN = 0;
+
+        private const int SM_CYSCREEN = 1;
+
+        private const int SPI_GETWORKAREA = 48;
+
+        public static Rect VirtualScreen => GetVirtualScreen();
+
+        public static Rect WorkingArea => GetWorkingArea();
+
+        public static int GetCurrentDpi()
+        {
+            return (int)typeof(SystemParameters).GetProperty("Dpi", BindingFlags.Static | BindingFlags.NonPublic).GetValue(null, null);
+        }
+
+        public static double GetCurrentDpiScaleFactor()
+        {
+            return (double)GetCurrentDpi() / 96;
+        }
+
+        private static Rect GetVirtualScreen()
+        {
+            var size = new Size(PInvoke.GetSystemMetrics(SM_CXSCREEN), PInvoke.GetSystemMetrics(SM_CYSCREEN));
+            return new Rect(0, 0, size.Width, size.Height);
+        }
+
+        private static Rect GetWorkingArea()
+        {
+            var rect = new RECT();
+
+            SystemParametersInfo(SPI_GETWORKAREA, 0, ref rect, 0);
+            return new Rect(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
+        }
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        private static extern bool SystemParametersInfo(int nAction, int nParam, ref RECT rc, int nUpdate);
+    }
+}