zhao：获取屏幕缩放后的大小

Common/system/PrimaryScreen.cs

@@ -137,6 +137,15 @@ namespace Common.system
                 return ScaleY;
             }
         }
+
+        /// <summary>
+        /// 缩放后的大小
+        /// </summary>
+        /// <returns></returns>
+        public static SizeF ScaleScreenSize()
+        {
+            return new SizeF(((float)DESKTOP.Width) / (DpiX / 96f), ((float)DESKTOP.Height) / (DpiY / 96f));
+        }
         #endregion
     }
 }