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Graphics gdi(this->GetDC()->m_hDC); //构造一个GDI+对象

   	Pen red(Color(255,255,0,0),3);   	//构造一个画笔 画笔透明度是255
   	gdi.DrawLine(&red,10,10,50,10);		//画线

FontFamily m_font(L"宋体"); Font font(&m_font,24); //构造字体 SolidBrush brush(Color(255,0,0,255)); //输出字符串要构造一个画刷 CRect rect; this->GetClientRect(&rect); //得到客户区大小 PointF point(rect.right/2,rect.bottom/2);//坐标点 gdi.DrawString(L"中华",2,&font,point,&brush);//输出字符串 ———————————————— 版权声明：本文为CSDN博主「a550853006a」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/a550853006a/article/details/45769215

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public partial class Form1 : Form {

   Timer timer = new Timer();
   string[] lines = { "hellow world", "nihao", "line3", "line4", "line5", "end" };
   int currentLine = 0;

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   public Form1()
   {
       InitializeComponent();
       timer.Interval = 300;
       timer.Tick += delegate { currentLine++; this.Invalidate(); };
       timer.Start();
   }

   protected override void OnPaint(PaintEventArgs e)
   {
       for (int i = 0; i < currentLine % lines.Length; i++)
       {
           e.Graphics.DrawString(lines[i], this.Font, Brushes.Black, 10, 20 * i);
       }
   }

}

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string[] lines;//所有文字，每行都有回车

       int nextLine;  //下一行
       private void button2_Click(object sender, EventArgs e)
       {
           richTextBox1.Text =Resources.String1;
           lines=richTextBox1.Lines;
           richTextBox1.Text = "";
           timer1.Interval = 1000;
           timer1.Tick += new EventHandler(timer1_Tick);
           timer1.Start();
       }

       void timer1_Tick(object sender, EventArgs e)
       {
           StringBuilder sb = new StringBuilder(richTextBox1.Text);
           if (richTextBox1.Text != "")
           {
               sb.Append("\r\n");
           }
           sb.Append(lines[nextLine]); //添加下一行文字
           richTextBox1.Text = sb.ToString();
           richTextBox1.Select();
           richTextBox1.SelectionStart = richTextBox1.Text.Length;
           nextLine++;
           if (nextLine >= lines.Length)
           {
               timer1.Enabled = false;
           }
       }

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private void button1_Click(object sender, EventArgs e)//画图响应按钮(类似完成MFC中BitBlt或StrechBlt的功能)        {           Bitmap bitmap = new Bitmap(@"D:/工作照.jpg");           Graphics g = CreateGraphics();           //获得窗口屏幕大小           Rectangle rect = System.Windows.Forms.SystemInformation.VirtualScreen;           int width = rect.Width;           int height = rect.Height;            g.DrawImage(bitmap, rect);           button1.Visible = true;        }       private void button2_Click(object sender, EventArgs e)//动态输出文字(类似MFC中的TextOut())       {           Font myFont = new Font("Verdana", 12);           Graphics g = CreateGraphics();           //创建线渐变画刷：            LinearGradientBrush myBrush = new LinearGradientBrush(ClientRectangle, Color.FromArgb(120, 120, 250), Color.Red, LinearGradientMode.Vertical);           //  g.DrawString("GDI 显示字符串", myFont, myBrush, new RectangleF(10, 10, 500, 200));           //创建一般画刷：           SolidBrush bru1 = new SolidBrush(Color.FromArgb(250, 200, 0));           g.DrawString("GDI 显示字符串", myFont, bru1, new RectangleF(10, 10, 500, 200));           Pen newpen = new Pen(bru1);           Point[] p = new Point[] { new Point(0, 0), new Point(100, 100), new Point(50, 100), new Point(200, 100) };           g.DrawEllipse(newpen,50,50, 100, 100);        }

  ———————————————— 版权声明：本文为CSDN博主「还可以吧有点纯纯的」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/kahncc/article/details/86623525

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private void Form1_Paint(object sender, PaintEventArgs e)

       {
           Graphics g = e.Graphics;
           g.Clear(Color.White);
           g.SmoothingMode = SmoothingMode.AntiAlias;

           //定义输出字体
           Font myFont = new Font("Arial", 15, FontStyle.Regular, GraphicsUnit.Pixel);

           //定义文本输出格式
           StringFormat strFmt = new StringFormat();
           strFmt.Alignment = StringAlignment.Near;
           strFmt.LineAlignment = StringAlignment.Near;

           string tempStr = string.Empty;

           //获取系统所有已安装的字体系列
           InstalledFontCollection installedCollection = new InstalledFontCollection();
           FontFamily[] fontFamilyArray = installedCollection.Families;
           int index = 0;

           //访问 fontFamilyArray 数组中的每一个成员
           foreach (FontFamily i in fontFamilyArray)
           {
               //获取当前字体系统的名称
               tempStr += i.Name + ",";
               index++;
           }

           //绘制所有字体
           Rectangle textOutRect = new Rectangle(0, 15, Width, Height);
           g.DrawString(tempStr, myFont, Brushes.Black, textOutRect, strFmt);

           tempStr = string.Format("系统中已经安装的字体有{0}种，其名称分别为：\n", index + 1);
           g.DrawString(tempStr,myFont,Brushes.Red,new PointF(0,0));
       }

———————————————— 版权声明：本文为CSDN博主「keep_silence_」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/keep_silence_/article/details/8130005