diff --git a/Tinhtong2so/SimpleDlg/SimpleDlgView.h b/Tinhtong2so/SimpleDlg/SimpleDlgView.h
index fa70bd4..73b92b5 100644
--- a/Tinhtong2so/SimpleDlg/SimpleDlgView.h
+++ b/Tinhtong2so/SimpleDlg/SimpleDlgView.h
@@ -1,4 +1,3 @@
-
 // SimpleDlgView.h : interface of the CSimpleDlgView class
 //
 
@@ -13,24 +12,24 @@ class CSimpleDlgView : public CView
 	CSimpleDlgView() noexcept;
 	DECLARE_DYNCREATE(CSimpleDlgView)
 
-// Attributes
+	// Attributes
 public:
 	CSimpleDlgDoc* GetDocument() const;
 
-// Operations
+	// Operations
 public:
 
-// Overrides
+	// Overrides
 public:
-	void DrawGraph(CDC * pDC);
-	void DrawUnit(CDC * pDC, int m_head, int m_distance);
+	void DrawGraph(CDC* pDC);
+	void DrawUnit(CDC* pDC, int m_head, int m_distance);
 	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
 	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
 	int ConvertX(int x, int m_head, int m_distance);
 	int ConvertY(int y, int m_head, int m_distance);
 protected:
 
-// Implementation
+	// Implementation
 public:
 	virtual ~CSimpleDlgView();
 #ifdef _DEBUG
@@ -40,26 +39,27 @@ class CSimpleDlgView : public CView
 
 protected:
 
-// Generated message map functions
+	// Generated message map functions
 protected:
 	afx_msg void OnFilePrintPreview();
 	afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
 	afx_msg void OnContextMenu(CWnd* pWnd, CPoint point);
-	afx_msg void OnButton10Clicked();
+	afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
+	void OnButton10Clicked();
 	DECLARE_MESSAGE_MAP()
 public:
 	afx_msg void OnToolsOptions();
 private:
-	CString m_text{_T("Place name here")};
+	CString m_text{ _T("Place name here") };
 	int m_bgColor{ 0 };
 	//int m_x{950};
 	//int m_y{500};
 	//int m_r{100};
-	int m_head{ 0 };
+	float m_head{ 0 };
 	float m_distance{ 50 };
 	CButton m_button;
 	CEdit m_editBox;
-	CString tmp_editBox{_T("900.000")};
+	CString tmp_editBox{ _T("900.000") };
 public:
 	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
 	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
@@ -67,6 +67,7 @@ class CSimpleDlgView : public CView
 
 #ifndef _DEBUG  // debug version in SimpleDlgView.cpp
 inline CSimpleDlgDoc* CSimpleDlgView::GetDocument() const
-   { return reinterpret_cast<CSimpleDlgDoc*>(m_pDocument); }
+{
+	return reinterpret_cast<CSimpleDlgDoc*>(m_pDocument);
+}
 #endif
-