diff --git a/src/Basal/IFox.Basal.Shared/WindowsAPI/MouseHook.cs b/src/Basal/IFox.Basal.Shared/WindowsAPI/MouseHook.cs
index 400e4a792998e0d143e0b0dbb76e11b4695eeecb..b3143181565aee8b92f77c1764e8803be6fc0271 100644
--- a/src/Basal/IFox.Basal.Shared/WindowsAPI/MouseHook.cs
+++ b/src/Basal/IFox.Basal.Shared/WindowsAPI/MouseHook.cs
@@ -1,4 +1,4 @@
-namespace IFoxCAD.Basal;
+namespace IFoxCAD.Basal;
 
 public class MouseHook
 {
@@ -172,6 +172,16 @@ bool HookTask(int nCode, int wParam, IntPtr lParam)
             _clickCount = 1;
             _ck = true;
             break;
+            case WM.WM_MBUTTONUP:
+            _button = MouseButtons.Middle;
+            _clickCount = 1;
+            _up = true;
+            break;
+            case WM.WM_MBUTTONDBLCLK:
+            _button = MouseButtons.Middle;
+            _clickCount = 2;
+            _ck = true;
+            break;
             case WM.WM_MOUSEWHEEL:
             // 滚轮
             break;