diff --git a/inc/hgl/platform/InputDevice.h b/inc/hgl/platform/InputDevice.h
index 553f5842..382d256f 100644
--- a/inc/hgl/platform/InputDevice.h
+++ b/inc/hgl/platform/InputDevice.h
@@ -10,9 +10,12 @@ namespace hgl
     {
         mbMove              =0x00000001,    ///<鼠标移动了
 
-        mbLeft              =0x00000010,    ///<鼠标左键处于按下状态
-        mbMid               =0x00000100,    ///<鼠标中键处于按下状态
-        mbRight             =0x00001000,    ///<鼠标右键处于按下状态
+        mbLeft              =0x00000002,    ///<鼠标左键处于按下状态
+        mbMid               =0x00000004,    ///<鼠标中键处于按下状态
+        mbRight             =0x00000008,    ///<鼠标右键处于按下状态
+
+        mbX1                =0x00000010,
+        mbX2                =0x00000020,
 
         mbShift             =0x10000000,    ///<Shift键处于按下状态
         mbCtrl              =0x20000000,    ///<Ctrl键处于按下状态
diff --git a/src/Platform/Win/WinMessage.cpp b/src/Platform/Win/WinMessage.cpp
index 2956e232..61115ffe 100644
--- a/src/Platform/Win/WinMessage.cpp
+++ b/src/Platform/Win/WinMessage.cpp
@@ -13,7 +13,7 @@ namespace hgl
         static KeyboardButton KeyConvert[256];
         static void (*WMProc[2048])(WinWindow *,uint32,uint32);                 //消息处理队列
 
-        uint32 GetKeyFlags(uint32 wflags)
+        uint32 GetMouseKeyFlags(uint32 wflags)
         {
             uint32 flag=0;
 
@@ -21,6 +21,9 @@ namespace hgl
             if(wflags&MK_RBUTTON)flag|=mbRight;
             if(wflags&MK_MBUTTON)flag|=mbMid;
 
+            if(wflags&MK_XBUTTON1)flag|=mbX1;
+            if(wflags&MK_XBUTTON2)flag|=mbX2;
+
             if(wflags&MK_SHIFT  )flag|=mbShift;
             if(wflags&MK_CONTROL)flag|=mbCtrl;