MFC和GDI+一起使用

 1 void CGDALDesktopView::OnDraw(CDC* pDC)
 2 {
 3     CGDALDesktopDoc* pDoc = GetDocument();
 4     ASSERT_VALID(pDoc);
 5     if (!pDoc)
 6         return;
 7     
 8     //Graphics graphics(*pDC);
 9         Graphics g( pDC->GetSafeHdc() );
10     //建立画笔
11      Pen pen_black(Color::Black);
12      Pen pen_white(Color::White);
13     //使用画笔绘制图形
14     pen_black.SetWidth(6); //设置画笔宽度
15     pen_black.SetStartCap(LineCapRoundAnchor); //设置开始笔帽
16     pen_black.SetEndCap(LineCapArrowAnchor); //设置结束笔帽 
17     g.DrawLine(&pen_black, 10, 10, 100, 10);
18     Rect rect1(0,0, 150, 80);
19     Rect rect2(10 + 170, 200, 150, 80);
20     Rect rect3(10 + 170*2, 200, 150, 80);
21     Rect rect4(10 + 170*3, 200, 150, 80);
22     g.DrawRectangle(&pen_black, rect1);
23      g.DrawRectangle(&pen_black, rect2);
24      g.DrawRectangle(&pen_black, rect3);
25      g.DrawRectangle(&pen_black, rect4);
26     //建立画刷
27      //实色画刷
28     SolidBrush brush_black(Color::Black);
29      SolidBrush brush_white(Color::White);
30      SolidBrush brush_blue(Color::Blue);
31      g.FillRectangle(&brush_blue, rect1);
32      //网格画刷
33      HatchBrush brush_hatch( HatchStyleDiagonalBrick, Color(255, 255, 0, 0), Color(30, 0, 255, 0)); 
34     g.FillRectangle(&brush_hatch, rect2);
35      //贴图画刷
36      Image image(L"res\\qq.gif"); 
37      TextureBrush brush_texture(&image); 
38      g.FillRectangle(&brush_texture, rect3);
39      //渐变画刷(线形渐变)
40      LinearGradientBrush brush_gradient_line( Point(0, 0), Point(10, 10),Color(255, 255, 0, 0), Color(255, 0, 0, 255));
41      g.FillRectangle(&brush_gradient_line, rect4);
42      //渐变画刷(路径渐变)
43      //PathGradientBrush......................
44     //贴图画笔
45      Pen pen_texture(&brush_texture, 30);
46     g.DrawEllipse(&pen_texture, 600, 10, 150 ,150);
47     //启动抗锯齿功能
48      pen_black.SetWidth(1);
49      g.SetSmoothingMode(SmoothingModeAntiAlias);
50      g.DrawLine(&pen_black, 150, 5, 350 , 20); 
51     //绘制图像
52     // 不进行缩放
53      g.DrawImage(&image, 10,50);
54      // 使用低质量的插补算法
55      g.SetInterpolationMode(InterpolationModeNearestNeighbor);
56      g.DrawImage( &image, Rect(100,50, 100, 100));
57      // 使用中等质量的插补算法
58      g.SetInterpolationMode(InterpolationModeHighQualityBilinear);
59      g.DrawImage( &image, Rect(250,50, 100, 100));
60      // 使用高质量的插补算法
61      g.SetInterpolationMode(InterpolationModeHighQualityBicubic);
62      g.DrawImage( &image, Rect(400,50, 100, 100)); 
63     //路径
64     GraphicsPath path1;
65     path1.AddLine(300, 350, 500 ,350);
66     path1.AddArc(300, 300, 200, 100, 0, -180);
67     g.DrawPath(&pen_black, &path1);
68     g.FillPath(&brush_black, &path1);
69     //区域
70     GraphicsPath pathOuter;
71     pathOuter.AddRectangle(Rect(100, 320, 150 ,150));
72     GraphicsPath pathInner;
73      pathInner.AddEllipse(Rect(150, 360, 90 ,80));
74      Region rgn(&pathOuter);
75      rgn.Exclude(&pathInner);
76     g.FillRegion(&brush_blue, &rgn);
77     // TODO: 在此处为本机数据添加绘制代码
78 }