VC笔记aaaakahfkkga.doc

VC笔记： 1. 两组单选框： ，1,2一组，3,4一组： 画图： void CMy12View::OnDraw(CDC* pDC) { CMy12Doc* pDoc = GetDocument(); ASSERT_VALID(pDoc); CRect rectClient; GetClientRect(rectClient); pDC-SetMapMode(MM_ANISOTROPIC); pDC-SetWindowExt(1000,1000); pDC-SetViewportExt(rectClient.right,-rectClient.bottom); pDC-SetViewportOrg(rectClient.right/2,rectClient.bottom/2); pDC-Ellipse(CRect(-500,-500,500,500)); CPen penBlack; penBlack.CreatePen(PS_SOLID,2,RGB(0,0,0)); CPen*pOldPen=pDC-SelectObject(penBlack); pDC-MoveTo(2,4); pDC-LineTo(111,100); pDC-SelectObject(pOldPen); } 单文档界面上画图： 上添加： // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); UpdateWindow(); CDC*pDC=GetDC(); CRect rcClient; GetClientRect(rcClient); CRect rcDraw; rcDraw.SetRect (10,10,rcClient.right-120,rcClient.bottom-10); CPen penBlack(PS_SOLID,2,RGB(0,0,0)); CPen*pOldPen=pDC-SelectObject(penBlack); pDC-MoveTo (2,2); pDC-LineTo (10,10); pDC-LineTo (10,20); } 子窗口绘图： 1.在子窗口中添加 } void a1::OnPaint() { CPaintDC dc(this); // device context for painting UpdateWindow(); CDC*pDC=GetDC(); CRect rcClient; GetClientRect(rcClient); CRect rcDraw; rcDraw.SetRect (10,10,rcClient.right-120,rcClient.bottom-10); CPen penBlack(PS_SOLID,2,RGB(0,0,0)); CPen*pOldPen=pDC-SelectObject(penBlack); pDC-MoveTo (2,2); pDC-LineTo (10,10); pDC-LineTo (10,20); // TODO: Add your message handler code here // Do not call CDialog::OnPaint() for painting messages }即可