c#使用GDI+简单绘图

概述c#使用GDI+简单绘图

下面是内存溢出 jb51.cc 通过网络收集整理的代码片段。

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    // Create the in-memory bitmap where you will draw the image.      // This bitmap is 300 pixels wIDe and 50 pixels high.      Bitmap image = new Bitmap(300,50);            // get the graphics context      Graphics g = Graphics.FromImage(image);            // Draw a solID white rectangle.      // Start from point (1,1).      // Make it 298 pixels wIDe and 48 pixels high.      g.FillRectangle(Brushes.White,1,298,48);            // load a Font and use it to draw a string      Font Font = new Font("Impact",20,FontStyle.Regular);      g.DrawString("This is a test.",Font,Brushes.Blue,10,5);            // write the image to the output stream.      image.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Gif);            // dispose of the context and the bitmap      g.dispose();      image.dispose();  

    // Create the in-memory bitmap where you will draw the image.      // This bitmap is 450 pixels wIDe and 100 pixels high.      Bitmap image = new Bitmap(450,100);      Graphics g = Graphics.FromImage(image);            // Ensure high-quality curves.      g.SmoothingMode = SmoothingMode.AntiAlias;            // Paint the background.      g.FillRectangle(Brushes.White,450,100);            // Add an ellipse.      g.FillEllipse(Brushes.PaleGoldenrod,120,13,300,50);      g.DrawEllipse(Pens.Green,299,49);            // Draw some text using a fancy Font.      Font Font = new Font("Harrington",FontStyle.Bold);      g.DrawString("Oranges are tasty!",Brushes.DarkOrange,150,20);            // Add a graphic from a file.      System.Drawing.Image orangeImage =        System.Drawing.Image.Fromfile(Server.MapPath("oranges.gif"));      g.DrawImageUnscaled(orangeImage,0);            // Render the image to the output stream.      image.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Jpeg);            // Clean up.      g.dispose();      image.dispose();  

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总结

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