윈도우 플밍 과제하눈데 그림판만드는거임
근데 OnPaint에 원눌렀을때 네모눌렀을떄 세모눌럿을떄 이경우 다 넣으려면어캄?................
Doc안쓰고......ㅠㅠㅠㅠㅠ 아완전 허접한질문이라 ㅈㅅ
수업을 잘 안들었음.................
일단짜보긴했는데
원누리면 제대로 그려지는데
네모 세모누르면
마지막에 그린 원이 네모세모로 바뀜.......................
오늘 열두시까진데 이것밖에 못해씀 ㅠㅠ 도와죠제발..
소스 아래 ㄱㄱ..

void CChildView::OnPaint()
{
 CPaintDC dc(this);
 CRect rect;
 dc.Ellipse(m_x1, m_y1, m_x2, m_y2);

}

void CChildView::OnColorRed()
{
 m_color = RGB(255, 0, 0);
 //Invalidate();
}

void CChildView::OnColorGreen()
{
 m_color = RGB(0, 255, 0);
 //Invalidate();
}

void CChildView::OnColorBlue()
{
 m_color = RGB(0, 0, 255);
 //Invalidate();

}

void CChildView::OnUpdateColorRed(CCmdUI* pCmdUI)
{
 pCmdUI->SetCheck(m_color == RGB(255, 0, 0));
}

void CChildView::OnUpdateColorGreen(CCmdUI* pCmdUI)
{
 pCmdUI->SetCheck(m_color == RGB(0, 255, 0));
}

void CChildView::OnUpdateColorBlue(CCmdUI* pCmdUI)
{
 pCmdUI->SetCheck(m_color == RGB(0, 0, 255));
}

void CChildView::OnContextMenu(CWnd* pWnd, CPoint point)
{
 CMenu menu;
 menu.LoadMenu(IDR_MAINFRAME);
 CMenu* pMenu = menu.GetSubMenu(4);
 pMenu->TrackPopupMenu(
  TPM_LEFTALIGN|TPM_RIGHTBUTTON,
  point.x, point.y, AfxGetMainWnd());
}

void CChildView::OnRectancle()
{

 CClientDC dc(this);

 CPen pen(PS_SOLID,1,m_color);
 CPen *pOldPen = dc.SelectObject(&pen);
   

  dc.Rectangle(m_x1, m_y1, m_x2, m_y2);
 dc.SelectObject(pOldPen);
 
 //Invalidate();
}

void CChildView::OnTriangle()
{
    CClientDC dc(this);
 CPen pen(PS_SOLID,1,m_color);
 CPen *pOldPen = dc.SelectObject(&pen);
   

   CPoint pts[4];
   pts[0].x = m_x1+(m_x2-m_x1)/2 ;
   pts[0].y = m_y1;

   pts[1].x = m_x1;
   pts[1].y = m_y2;

   pts[2].x = m_x2;
   pts[2].y = m_y2;

   dc.Polygon(pts, 3);

   dc.SelectObject(pOldPen);

}

void CChildView::OnCircle()
{
  

CClientDC dc(this);
 CPen pen(PS_SOLID,1,m_color);
 CPen *pOldPen = dc.SelectObject(&pen);
 CPaintDC dc2(this);

 dc.Ellipse(m_x1, m_y1, m_x2, m_y2);

 dc2.SelectObject(&m_color);

// Invalidate();
}

void CChildView::OnLButtonDown(UINT nFlags, CPoint point)
{
 // 그리기 모드를 시작한다.
 m_bDrawMode = TRUE;

  m_x1 = point.x;
  m_y1 = point.y;

}

void CChildView::Ona마우스ove(UINT nFlags, CPoint point)
{

 if(m_bDrawMode){
  CClientDC dc(this);
  dc.SelectStockObject(NULL_BRUSH);
 
  dc.SetROP2(R2_NOT);
 
  dc.SetROP2(R2_NOT);
  m_x2 = point.x;
  m_y2 = point.y;

 }
}

void CChildView::OnLButtonUp(UINT nFlags, CPoint point)
{

 CClientDC dc(this);
 dc.SelectStockObject(NULL_BRUSH);
 
 dc.SetROP2(R2_COPYPEN);
 m_x2 = point.x;
 m_y2 = point.y;
 
 CPen pen(PS_SOLID,1,m_color);
 CPen *pOldPen = dc.SelectObject(&pen);

dc.Ellipse(m_x1, m_y1, m_x2, m_y2);

 m_bDrawMode = FALSE;
}

void CChildView::OnUpdateLine2(CCmdUI* pCmdUI)
{
 // TODO: Add your command update UI handler code here
 
CPaintDC dc(this);
 CRect rect;
 
 GetClientRect(&rect);

 dc.MoveTo(m_x1,m_y1);
 dc.LineTo(m_x2,m_y2);

}