提交rbac

提交设置右键错位的bug

DH.RBAC/Utility/Other/ScreenUtils.cs

@@ -0,0 +1,113 @@
+#if NETFRAMEWORK || WINDOWS
+using System;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
+namespace DH.RBAC.Utility.Other
+{
+    public class ScreenUtils
+    {
+#region Dll引用
+        [DllImport("User32.dll", EntryPoint = "GetDC")]
+        private extern static IntPtr GetDC(IntPtr hWnd);
+
+        [DllImport("User32.dll", EntryPoint = "ReleaseDC")]
+        private extern static int ReleaseDC(IntPtr hWnd, IntPtr hDC);
+
+        [DllImport("gdi32.dll")]
+        public static extern int GetDeviceCaps(IntPtr hdc, int nIndex);
+
+        [DllImport("User32.dll")]
+        public static extern int GetSystemMetrics(int hWnd);
+
+
+        [DllImport("User32.dll")]
+        private static extern IntPtr MonitorFromPoint([In] System.Drawing.Point pt, [In] uint dwFlags);
+
+        [DllImport("Shcore.dll")]
+        private static extern IntPtr GetDpiForMonitor([In] IntPtr hmonitor, [In] DpiType dpiType, [Out] out uint dpiX, [Out] out uint dpiY);
+#endregion
+
+        const int DESKTOPVERTRES = 117;
+        const int DESKTOPHORZRES = 118;
+
+        const int SM_CXSCREEN = 0;
+        const int SM_CYSCREEN = 1;
+
+        /// <summary>
+        /// 获取DPI缩放比例
+        /// </summary>
+        /// <param name="dpiscalex"></param>
+        /// <param name="dpiscaley"></param>
+        public static void GetDPIScale(ref float dpiscalex, ref float dpiscaley)
+        {
+            int x = GetSystemMetrics(SM_CXSCREEN);
+            int y = GetSystemMetrics(SM_CYSCREEN);
+            IntPtr hdc = GetDC(IntPtr.Zero);
+            int w = GetDeviceCaps(hdc, DESKTOPHORZRES);
+            int h = GetDeviceCaps(hdc, DESKTOPVERTRES);
+            ReleaseDC(IntPtr.Zero, hdc);
+            dpiscalex = (float)w / x;
+            dpiscaley = (float)h / y;
+        }
+
+        /// <summary>
+        /// 获取分辨率
+        /// </summary>
+        /// <param name="width">宽</param>
+        /// <param name="height">高</param>
+        private static void GetResolving(ref int width, ref int height)
+        {
+            IntPtr hdc = GetDC(IntPtr.Zero);
+            width = GetDeviceCaps(hdc, DESKTOPHORZRES);
+            height = GetDeviceCaps(hdc, DESKTOPVERTRES);
+            ReleaseDC(IntPtr.Zero, hdc);
+        }
+
+        public static int ScreenCount
+        {
+            get
+            {
+                return Screen.AllScreens.Length;
+            }
+        }
+
+        public static ScreenSize GetScreenSize(int index)
+        {
+            if (index > (ScreenCount - 1))
+                throw new Exception("索引异常");
+            Screen screen = Screen.AllScreens[index];
+            uint width = 0;
+            uint height = 0;
+            GetDpi(screen, DpiType.Effective, out width, out height);
+            double scale = width / 96.0;
+            return new ScreenSize { Left = (int)(screen.Bounds.X / scale), Top = screen.Bounds.Y, Width = (int)(screen.Bounds.Width / scale), Height = (int)(screen.Bounds.Height / scale), Scale = scale };
+        }
+
+        public static void GetDpi(Screen screen, DpiType dpiType, out uint dpiX, out uint dpiY)
+        {
+            var pnt = new System.Drawing.Point(screen.Bounds.Left + 800, screen.Bounds.Top + 600);
+            var mon = MonitorFromPoint(pnt, 2);
+            GetDpiForMonitor(mon, dpiType, out dpiX, out dpiY);
+        }
+
+    }
+    public enum DpiType
+    {
+        Effective = 0,
+        Angular = 1,
+        Raw = 2,
+    }
+
+
+
+    public class ScreenSize
+    {
+        public int Left { get; set; }
+        public int Top { get; set; }
+        public int Width { get; set; }
+        public int Height { get; set; }
+        public double Scale { get; set; }
+    }
+}
+#endif