diff --git a/inc/hgl/math/Matrix.h b/inc/hgl/math/Matrix.h
index 4983bd04..59f59e76 100644
--- a/inc/hgl/math/Matrix.h
+++ b/inc/hgl/math/Matrix.h
@@ -16,6 +16,7 @@ namespace hgl
         Matrix4f two_dim;       //2D矩阵
 
         Matrix4f projection;
+//        Matrix4f inverse_projection;
         Matrix4f modelview;
         Matrix4f mvp;
         Matrix3f normal;
diff --git a/src/Platform/Win/WinMessage.cpp b/src/Platform/Win/WinMessage.cpp
index 61115ffe..0a2c8088 100644
--- a/src/Platform/Win/WinMessage.cpp
+++ b/src/Platform/Win/WinMessage.cpp
@@ -201,7 +201,7 @@ namespace hgl
                 const int y=HIWORD(lParam); \
                 \
                 win->OnMouseMove(x,y);  \
-                win->OnMouse##action(x,y,mb##button|GetKeyFlags(wParam));   \
+                win->OnMouse##action(x,y,mb##button|GetMouseKeyFlags(wParam));   \
             }
 
             WMEF_MOUSE(Left,Down);
diff --git a/src/SceneGraph/Camera.cpp b/src/SceneGraph/Camera.cpp
index 3fb63503..3158e237 100644
--- a/src/SceneGraph/Camera.cpp
+++ b/src/SceneGraph/Camera.cpp
@@ -30,6 +30,8 @@ namespace hgl
             else
                 matrix.projection=ortho(width,height,znear,zfar);               //这个算的不对
 
+            //matrix.inverse_projection=matrix.projection.Inverted();
+
             matrix.modelview=hgl::graph::LookAt(eye,center,up_vector);
 
             matrix.mvp=matrix.projection*matrix.modelview;