🐛 修复缩放屏幕截图bug

Util/ScreenUtil.cs

@@ -133,6 +133,8 @@ namespace GeekDesk.Util
         /// </summary>
         /// <returns></returns>
         public static double GetScreenScalingFactor()
+        {
+            try
             {
                 var g = Graphics.FromHwnd(IntPtr.Zero);
                 IntPtr desktop = g.GetHdc();
@@ -143,6 +145,11 @@ namespace GeekDesk.Util
                 //SystemParameters.PrimaryScreenHeight;
 
                 return screenScalingFactor;
+            } catch (Exception e)
+            {
+                return 1;
+            }
+            
         }
 
     }