diff --git a/Tinhtong2so/SimpleDlg/SimpleDlgView.cpp b/Tinhtong2so/SimpleDlg/SimpleDlgView.cpp
index 31dedbb..7b1cfdc 100644
--- a/Tinhtong2so/SimpleDlg/SimpleDlgView.cpp
+++ b/Tinhtong2so/SimpleDlg/SimpleDlgView.cpp
@@ -1,4 +1,3 @@
-
 // SimpleDlgView.cpp : implementation of the CSimpleDlgView class
 //
 
@@ -26,13 +25,14 @@
 
 IMPLEMENT_DYNCREATE(CSimpleDlgView, CView)
 
-BEGIN_MESSAGE_MAP(CSimpleDlgView, CView)
+BEGIN_MESSAGE_MAP(CSimpleDlgView, CView, CEdit)
 	ON_WM_CONTEXTMENU()
 	ON_WM_RBUTTONUP()
 	ON_COMMAND(ID_TOOLS_OPTIONS, &CSimpleDlgView::OnToolsOptions)
 	ON_WM_MOUSEMOVE()
 	ON_WM_CREATE()
 	ON_BN_CLICKED(IDC_BUTTON10, OnButton10Clicked)
+	ON_WM_LBUTTONDBLCLK(IDC_EDITBOX10, &MessageManage::OnItemDoubleClick)
 END_MESSAGE_MAP()
 
 // CSimpleDlgView construction/destruction
@@ -59,17 +59,17 @@ BOOL CSimpleDlgView::PreCreateWindow(CREATESTRUCT& cs)
 
 //2 ham tinhj tien vector do thi
 int CSimpleDlgView::ConvertX(int x, int m_head, int m_distance) {
-	return (50*x)/m_distance + 250 - (50*m_head)/m_distance;
-}                               
+	return (50 * x) / m_distance + 250 - (50 * m_head) / m_distance;
+}
 int CSimpleDlgView::ConvertY(int y, int m_head, int m_distance) {
-	return 900 +(50*m_head)/m_distance - (50*y)/m_distance;
+	return 900 + (50 * m_head) / m_distance - (50 * y) / m_distance;
 }
 
 void CSimpleDlgView::DrawGraph(CDC* pDC) {
 	pDC->TextOutW(0, 0, m_text);
-	
+
 	CBrush brush(RGB(230, 230, 230));
-	CBrush *pBrush = pDC->SelectObject(&brush);
+	CBrush* pBrush = pDC->SelectObject(&brush);
 	pDC->Rectangle(250, 0, 2000, 900);
 	pDC->SelectObject(pBrush);
 
@@ -99,7 +99,7 @@ void CSimpleDlgView::DrawUnit(CDC* pDC, int m_head, int m_distance) {
 	endX.Format(_T("%6.3f"), last_x);
 	pDC->TextOutW(2000 - 16, 920, endX);
 
-	float last_y = m_head +  18* m_distance;
+	float last_y = m_head + 18 * m_distance;
 	CString endY;
 	endY.Format(_T("%6.3f"), last_y);
 	pDC->TextOutW(195, 0, endY);
@@ -125,7 +125,7 @@ void CSimpleDlgView::DrawUnit(CDC* pDC, int m_head, int m_distance) {
 
 void CSimpleDlgView::OnDraw(CDC* pDC)
 {
-	
+
 
 	CSimpleDlgDoc* pDoc = GetDocument();
 	ASSERT_VALID(pDoc);
@@ -146,18 +146,18 @@ void CSimpleDlgView::OnDraw(CDC* pDC)
 
 	//Ve khung do thi
 	DrawGraph(pDC);
-	
+
 	//Ve duong do thi y= ax+b
 	//pDC->TextOutW(250, 50, pDoc->GetText());
 	int a1 = pDoc->GetA1();
 	int b1 = pDoc->GetB1();
-	if (a1 != 0 && b1 != 0 && a1!= -842150451 && b1!= -842150451) {
-		pDC->MoveTo(ConvertX(m_head,m_head,m_distance), ConvertY(m_head*a1 + b1, m_head, m_distance)); //Diem dau la m_head
+	if (a1 != 0 && b1 != 0 && a1 != -842150451 && b1 != -842150451) {
+		pDC->MoveTo(ConvertX(m_head, m_head, m_distance), ConvertY(m_head * a1 + b1, m_head, m_distance)); //Diem dau la m_head
 		CPen pen;
 		pen.CreatePen(PS_DOT, 4, RGB(54, 54, 200));
 		pDC->SelectObject(&pen);
 		for (int i = m_distance; i < m_head + 33 * m_distance; i += 1) {
-			pDC->LineTo(ConvertX(i, m_head, m_distance), ConvertY(i*a1 + b1, m_head, m_distance));
+			pDC->LineTo(ConvertX(i, m_head, m_distance), ConvertY(i * a1 + b1, m_head, m_distance));
 		}
 	}
 
@@ -166,7 +166,7 @@ void CSimpleDlgView::OnDraw(CDC* pDC)
 	float a2 = pDoc->GetA2();
 	float b2 = pDoc->GetB2();
 	float c2 = pDoc->GetC2();
-	if (a2 != 0 && b2 != 0 && a2 != -842150451 && b2 != -842150451 ) {
+	if (a2 != 0 && b2 != 0 && a2 != -842150451 && b2 != -842150451) {
 		pDC->MoveTo(ConvertX(m_head, m_head, m_distance), ConvertY(a2 * pow(m_head, 2) + b2 * m_head + c2, m_head, m_distance)); //Diem dau la m_head
 		CPen pen;
 		pen.CreatePen(PS_DOT, 4, RGB(200, 54, 54));
@@ -184,7 +184,7 @@ void CSimpleDlgView::OnDraw(CDC* pDC)
 	CPen pen;
 	pen.CreatePen(PS_DOT, 4, RGB(54, 200, 54));
 	pDC->SelectObject(&pen);
-	//pDC->Ellipse(ConvertX(a4-R), ConvertY(b4+ R), ConvertX(a4 +R), ConvertY(b4-R)); 
+	//pDC->Ellipse(ConvertX(a4-R), ConvertY(b4+ R), ConvertX(a4 +R), ConvertY(b4-R));
 	pDC->Arc(ConvertX(a4 - R, m_head, m_distance), ConvertY(b4 + R, m_head, m_distance), ConvertX(a4 + R, m_head, m_distance), ConvertY(b4 - R, m_head, m_distance), ConvertX(a4 + R, m_head, m_distance), ConvertY(b4, m_head, m_distance), ConvertX(a4 - R, m_head, m_distance), ConvertY(b4, m_head, m_distance));
 	pDC->SetArcDirection(AD_CLOCKWISE);
 	pDC->Arc(ConvertX(a4 - R, m_head, m_distance), ConvertY(b4 + R, m_head, m_distance), ConvertX(a4 + R, m_head, m_distance), ConvertY(b4 - R, m_head, m_distance), ConvertX(a4 + R, m_head, m_distance), ConvertY(b4, m_head, m_distance), ConvertX(a4 - R, m_head, m_distance), ConvertY(b4, m_head, m_distance));
@@ -236,16 +236,16 @@ void CSimpleDlgView::OnToolsOptions()
 {
 	COptions dlgOptions;
 
-	 dlgOptions.m_text		= m_text  ;
-	 dlgOptions.m_bgColor	= m_bgColor;
-	 dlgOptions.m_head = m_head;
-	 dlgOptions.m_distance = m_distance;
+	dlgOptions.m_text = m_text;
+	dlgOptions.m_bgColor = m_bgColor;
+	dlgOptions.m_head = m_head;
+	dlgOptions.m_distance = m_distance;
 
 	if (dlgOptions.DoModal() == IDOK) { //Neu cua so Ok -> Lay cac gtri tu cua so
-		m_text		= dlgOptions.m_text;
-		m_bgColor	= dlgOptions.m_bgColor;
-		m_head		= dlgOptions.m_head;
-		m_distance	= dlgOptions.m_distance;
+		m_text = dlgOptions.m_text;
+		m_bgColor = dlgOptions.m_bgColor;
+		m_head = dlgOptions.m_head;
+		m_distance = dlgOptions.m_distance;
 	}
 	Invalidate();
 	UpdateWindow();
@@ -257,45 +257,34 @@ void CSimpleDlgView::OnMouseMove(UINT nFlags, CPoint point)
 	// TODO: Add your message handler code here and/or call default
 	CClientDC dc(this);
 	CString str1, str2;
-	str1.Format(_T("Window -> X': %04d,Y': %04d"), point.x, point.y); //%04d : so in ra co 4 chu so, neu it hon thi them 0 o dau
+	str1.Format(_T("Window -> X': %04d,Y': %04d"), (int)point.x, (int)point.y); //%04d : so in ra co 4 chu so, neu it hon thi them 0 o dau
 	dc.TextOutW(0, 420, str1);
 
 	float x, y; //Tu x',y' ve x,y
-	x = (point.x - 250 + (float)(50 * (float)m_head) / m_distance)*(float)((float)m_distance / 50);
-	y = (point.y - 900 - (float)(50 * (float)m_head) / m_distance)*(float)(-(float)m_distance / 50);
-	str2.Format(_T("Graph -> X: %6.3f,Y: %6.3f"), x, y);
+	x = (float)(point.x - 250 + (float)(50 * (float)m_head) / m_distance) * (float)((float)m_distance / 50);
+	y = (float)(point.y - 900 - (float)(50 * (float)m_head) / m_distance) * (float)(-(float)m_distance / 50);
+	str2.Format(_T("Graph -> X: %5.3f,Y: %5.3f"), x, y);
 	dc.TextOutW(0, 520, str2);
-	CView::OnMouseMove(nFlags, point);
-}
-
 
-int CSimpleDlgView::OnCreate(LPCREATESTRUCT lpCreateStruct)
-{
-	if (CView::OnCreate(lpCreateStruct) == -1)
-		return -1;
 
-	// TODO:  Add your specialized creation code here
-	m_button.Create(_T("OK"),BS_BOTTOM,CRect(195,21,247,41),this, IDC_BUTTON10);
-	m_button.ShowWindow(SW_SHOW);
-
-	m_editBox.Create(ES_MULTILINE | WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER, CRect(192, 0, 249, 20), this, IDC_EDITBOX10);
-	m_editBox.ShowWindow(SW_SHOW);
-	m_editBox.SetWindowTextW(tmp_editBox);
-	return 0;
+	CView::OnMouseMove(nFlags, point);
 }
 
+
 //#include <cctype>
 //
 //Cstring Validate(CString str)
 //{
-//	for (int i = 0; i < str.GetLength(); i++) {
-//		if (!std::isdigit(str[i]))
-//			return _T("string contains non numeric characters");
-//	}
-//	return _T("string only numeric characters");
+// for (int i = 0; i < str.GetLength(); i++) {
+// if (!std::isdigit(str[i]))
+// return _T("string contains non numeric characters");
+// }
+// return _T("string only numeric characters");
 //}
 
 //Enter to get value: https://stackoverflow.com/questions/15711311/edit-control-capture-enter-key
+
+
 void CSimpleDlgView::OnButton10Clicked() {
 	m_editBox.GetWindowTextW(tmp_editBox);
 	if (!tmp_editBox.IsEmpty()) {
@@ -309,14 +298,60 @@ void CSimpleDlgView::OnButton10Clicked() {
 			m_editBox.SetWindowTextW(tmp_editBox);
 			m_distance = (float)(last_y - m_head) / 18;
 		}
-	
+
 	}
 	else {
 		AfxMessageBox(L"Hi! Nhap gi do di");
 	}
-		
+
 	UpdateData(FALSE);
 	Invalidate();
 	UpdateWindow();
-	
-}
\ No newline at end of file
+
+}
+
+void CSimpleDlgView::OnLButtonDblClk(UINT nFlags, CPoint point) {
+	CClientDC dc(this);
+	CString str3;
+	float x1, y1;
+	x1 = (float)((float)point.x - 250);
+	y1 = (float)((float)point.y - 900);
+	str3.Format(_T("Graph -> X: %5.3f,Y: %5.3f"), x1, y1);
+	dc.TextOutW(0, 920, str3);
+
+	if (x1 < 10 && x1> -70 && y1 < -870) {
+		//AfxMessageBox(L"Hi");
+		m_editBox.ShowWindow(SW_SHOW);
+	}
+	else {
+		m_editBox.ShowWindow(HIDE_WINDOW);
+		m_editBox.GetWindowTextW(tmp_editBox);
+		AfxMessageBox(tmp_editBox);
+		float last_y = _ttoi(tmp_editBox);
+		tmp_editBox.Format(_T("%6.3f"), last_y);
+		m_editBox.SetWindowTextW(tmp_editBox);
+		m_distance = (float)(last_y - m_head) / 18;
+		Invalidate();
+		UpdateWindow();
+	}
+
+}
+
+int CSimpleDlgView::OnCreate(LPCREATESTRUCT lpCreateStruct)
+{
+	if (CView::OnCreate(lpCreateStruct) == -1)
+		return -1;
+
+	// TODO:  Add your specialized creation code here
+	m_button.Create(_T("OK"), BS_BOTTOM, CRect(195, 21, 247, 44), this, IDC_BUTTON10);
+	//m_button.ShowWindow(SW_SHOW);
+	//m_editBox.ShowWindow(HIDE_WINDOW);
+
+
+	m_editBox.Create(ES_MULTILINE | WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER, CRect(192, 0, 249, 20), this, IDC_EDITBOX10);
+	//m_editBox.ShowWindow(SW_SHOW);
+	m_editBox.ShowWindow(HIDE_WINDOW);
+
+	m_editBox.SetWindowTextW(tmp_editBox);
+	return 0;
+}