这一章节主要讲解了 简单的绘图

主要是通过一些小的例子让我们学会了VC++的一些基本操作

void CDrawView::OnLButtonDown(UINT nFlags, CPoint point)

{

	// TODO: Add your message handler code here and/or call default

	m_ptOrigin = point;

//	MessageBox("hello");

	CView::OnLButtonDown(nFlags, point);

}

void CDrawView::OnLButtonUp(UINT nFlags, CPoint point)

{

	// TODO: Add your message handler code here and/or call default

	/*

	//获得窗口的设备描述表

	HDC hdc;

	hdc = ::GetDC(m_hWnd);

	//移动到线条起点

	MoveToEx(hdc,m_ptOrigin.x,m_ptOrigin.y,NULL);

	//画线

	LineTo(hdc,point.x,point.y);

	//释放

	::ReleaseDC(m_hWnd,hdc);

	CView::OnLButtonUp(nFlags, point);

	*/

	/*

	//获得窗口的设备描述表对象的指针

           CDC* pDC = GetDC();

	pDC->MoveTo(m_ptOrigin);

	pDC->LineTo(point);

	ReleaseDC(pDC);

	CView::OnLButtonUp(nFlags, point);

	*/

	/*

	CClientDC dc(this);

	dc.MoveTo(m_ptOrigin);

	dc.LineTo(point);

	CView::OnLButtonUp(nFlags, point);

	*/

	/*

	//CWindowDC wDC(this);

	//CWindowDC wDC(GetParent());

	CWindowDC wDC(GetDesktopWindow());

	wDC.MoveTo(m_ptOrigin);

	wDC.LineTo(point);

	CView::OnLButtonUp(nFlags, point);

	*/

	/*

	CPen pen(PS_SOLID,1,RGB(255,0,0));

	CClientDC dc(this);

	CPen* pOldPen = dc.SelectObject(&pen);

	dc.MoveTo(m_ptOrigin);

	dc.LineTo(point);

	dc.SelectObject(pOldPen);

	CView::OnLButtonUp(nFlags, point);

	*/

	/*

	//定义画刷

	CBrush brush(RGB(255,0,0));

	//获得窗口的设备描述表对象

	CClientDC dc(this);

	//画矩形

	dc.FillRect(CRect(m_ptOrigin,point),&brush);

	CView::OnLButtonUp(nFlags, point);

	*/

	//创建位图

	CBitmap bitmap;

	//加载位图资源

	bitmap.LoadBitmap(IDB_BITMAP1);

	//画刷

	CBrush brush(&bitmap);

	CClientDC dc(this);

	dc.FillRect(CRect(m_ptOrigin,point),&brush);

	CView::OnLButtonUp(nFlags, point);

}

后面还有几个小例子就没有一一去写了，基本类似，因为个人觉得实用性不大，需要看相关绘图方面的资料时再回头来看