MFC在对话框中绘制图像

在OnPaint函数的基础上接着写如下绘制代码

	//初始化画笔类对象
	HDC hdc = ::GetDC(m_hWnd);
	HPEN hp;
	HBRUSH hbr;
	HFONT hf;
	TEXTMETRIC tm;
	CString x;
	
	hp = CreatePen(PS_SOLID, 2, RGB(255, 0, 0)); //用于绘制红色边框
	hbr = CreateSolidBrush(RGB(012, 123, 234)); //用于构建画刷
	hf=CreateFont(26,0,0,0,FW_NORMAL,FALSE,FALSE,0,ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, _T("system"));

	//开始绘制
	//SelectObject函数用于指定画笔（即HPEN类型、HBRUSH类型等）；
	//在下一次绘制的时候使用当前指定的画笔
	SelectObject(hdc, hp);
	SelectObject(hdc, hf);
	GetTextMetrics(hdc, &tm);//获取当前字体的信息,用于初始化tm对象
	hbr = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
	SelectObject(hdc, hbr);
	//绘制一个矩形，
	Rectangle(hdc, 100, 20, 130, 276); 

	//绘制空白区域的画笔
	hbr = (HBRUSH)GetStockObject(WHITE_BRUSH);
	//用不同线条绘制区域的画笔
	hbr = CreateHatchBrush(HS_BDIAGONAL, RGB(0, 0, 0)); 
	
	//绘制
	SelectObject(hdc, hbr);
	Rectangle(hdc, 20, 20, 40, 40);
	//绘制文字
	x.Format(_T("%d"), 0);
	TextOut(hdc, 110, 110, x, x.GetLength());