C# Image: How to Draw Images on .NET Graphics Within .NET Image SDK Library

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Draw .NET Graphics in C# Overview

With powerful image drawing function of .NET Imaging SDK, developers and programmers are competent to draw both text and .NET graphics within the assistance of C# demo code. This page shows the detailed guide on how to draw .NET graphics with the standard options in C# application. The main image .NET graphics writing functions include:

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Draw rectangle image on .NET graphics using RectangleDrawing method
Write line shape on .NET graphics using LineDrawing method
Add ellipse object on .NET graphics using EllipseDrawing method

In this image .NET graphics drawing tutorial article, users are supposed to learn:

Specific function features of using image .NET graphics application in C# project
Step by step guide on how to create a C# application to draw .NET graphics
Complete method and sample code to make users draw .NET graphics easily

Function Features of .NET Graphics Drawing in C#

Simple to incorporate image drawing controls within your C#.NET applications
Run .NET imaging graphics application within a few seconds in C# project
Support pre-processing options for better .NET graphics drawing
General pre-processing operations contain choosing a proper color, setting graphics width & height and deciding the font style property
Full support to draw variable image shapes on .NET graphics, like ellipse, rectangle, line, rubber stamp, etc.
Display the added image on .NET graphics at best status within C# code
Save drawn image to PNG, BMP, GIF, TIFF and JPEG image formats
Multiple storage options of image in .NET graphics including local file, database and memory

How to Draw .NET Graphics in C# Program

Before applying the function of image .NET graphics drawing, you need to create a proper Visual C# Windows project first. And this part tells users how to create such a C# application. For VB.NET developers, please go to draw .NET graphics within .NET Imaging SDK in VB.NET. Want to view image and document in WinForms or web applications, please go to draw .NET graphics in WinForms and web document image .NET graphics drawing.

Open and run Microsoft Visual Studio 2005/2008/2010 at first;
Then, you are supposed to create a C#.NET project;
Later, please copy your.NET imaging license text file to the new C# Windows project folder;
Add following image drawing and basic references to your C# project;

RasterEdge.Imaging.Drawing.dll
RasterEdge.Imaging.Basic.dll

Add following using requirements in C# project:

using System.IO;
using System.Drawing.Printing;
using RasterEdge.Imaging;
using RasterEdge.Imaging.Processing;
using RasterEdge.Imaging.Drawing.Image.Text;

C# .NET Graphics Drawing Methods

Following .NET graphics drawing methods allow programmers and end users to draw rectangle, line, and ellipse images in your C# applications.

public void RectangleDrawing(Pen mypen, Rectangle myRectangle);
public void RectangleDrawing(Pen mypen, Point pt1, Point pt2);
public void EllipseDrawing(Pen maypen, Point pt1, Point pt2, Point pt3, Point pt4);

Entire C# Code to Draw Rectangle, Line & Ellipse on .NET Graphics

From following three parts, users can have a better guidance on how to add rectangle, ellipse and line images on .NET graphics by using given C# sample codes.

C# Code to Draw Rectangle Image on .NET Graphics

Following C# demo code demonstrates how to draw a rectangle image on C#.NET Windows graphics. .NET graphics pre-editing applications includes adjusting .NET graphics background color, four edge data and choosing the image shape that will be drawn.

RasterEdgeImaging Rectangle = new RasterEdgeImaging();

{ 
Bitmap LoadImage = new Bitmap("C:\\1.jpg");
Graphic Rectangle = Graphics.FromImage(LoadImage);
Pen myPen = new Pen(System.Drawing.Color.Red, 5);
Rectangle myRectangle = new Rectangle(20, 20, 250, 200);
}
Rectangle.RectangleDrawing = (mypen, myrectangle);
Rectangle.Save();

C# Code to Draw Line Image to .NET Graphics

Like drawing rectangle image on .NET graphics, adding a line object to graphics is also easy to be achieved. Please follow the complete C# sample code below to finish this work easily.

RasterEdgeImaging Rectangle = new RasterEdgeImaging();

{ 
Bitmap LoadImage = new Bitmap("C:\\Sample.png");
Graphic Linear = Graphics.FromImage(LoadImage);
Pen myPen = new Pen(System.Drawing.Color.Red, 5);
Point pt1 = new Point (10.0F, 30.0F);
Point pt2 = new Point (50.0F, 30.0F);
}
Linear.LinearDrawing = (mypen, pt1, pt2);
Linear.Save();

C# Code to Draw Ellipse Image to .NET Graphics

Following Visual C# demo code demonstrates how to draw an ellipse object to .NET graphics. If you are interested image drawing functions in VB.NET project, please have a look at: how to draw and write image text and .NET graphics in VB.NET class.

RasterEdgeImaging Rectangle = new RasterEdgeImaging();

{ 
Bitmap LoadImage = new Bitmap("C:\\Sample.png");
Graphic Rectangle = Graphics.FromImage(LoadImage);
Pen myPen = new Pen (Color.Black, 3);
Rectangle myRectangle = new Rectangle(20, 20, 250, 200);
}
Ellipse. EllipseDrawing = (mypen, pt1, pt2, pt3, pt4);
Ellipse.Save();

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