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In C# it’s easy to open and edit images as a Bitmap object. If you have an Image or a Bitmap object and you want to save it to disc you need to do a couple of steps first. This guide will walk you through the steps required to save an Image or Bitmap to disc in the JPG format […]
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There are many ways to specify HTML color codes in C#. The .net framework has a great object for dealing with colors called Color. Here are some of the ways that you can create a Color object.
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// if you have an HTML string var lightGray = System.Drawing.ColorTranslator.FromHtml("#D3D3D3"); // if you have 3 hex numbers var lightGray = System.Drawing.Color.FromArgb(0xD3, 0xD3, 0xD3); // you can specify known color names var lightGray = Color.LightGray; // if you want to specify an alpha (transperancy) you can use FromArgb // the first int is the transperancy. 255 is solid while 0 is fully transperant var lightGray = Color.FromArgb(255, 0xD3, 0xD3, 0xD3); // you can also use integers with FromArgb var lightGray = Color.FromArgb(255, 211, 211, 211); // if you are using WPF and you want to specify an alpha in HTML style you can do this using System.Windows.Media; var lightGray = (Color)ColorConverter.ConvertFromString("#FFD3D3D3"); |
All of these methods will generate the same Color object and you can use any of them as you see fit. C# […]
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The C# Color Object is a very convenient way of storing colors in your C# projects. Once you have a Color object you can easily get the RGB and HSB values out of it. Understanding the Color object is important if you are learning to do any C# work that involves colors. Creating Color Objects If you have an HTML […]
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C# is a great language to do image processing in. It’s fast and easy to handle complex image manipulations with it. In order to process an image in C# you need to take the following steps: Load an Image File in C# Process the image (see below) Save the Image to a file as either PNG or JPG We will […]
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A lot of times you find the need to load an image in C# so that you can modify it. Perhaps you want to create an image processing program. You may need to resize or rescale an image. Maybe you need to rotate an image. Possibly you want to replace some of the colors in the image. Whatever the reason, […]
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In C# it’s easy to open and edit images as a Bitmap object. If you have an Image or a Bitmap object and you want to save it to disc you need to do a couple of steps first. This guide will walk you through the steps required to save an Image or Bitmap to disc in the JPG format […]
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C# makes it extraordinarily easy to read and write text files. There is a static object called “File” (located in System.IO) that does all the hard work for you. Look at how easy it is to read in a file, do some simple string processing on it, and then write it back out.
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// open a text file and read all contents into a var var text = File.ReadAllText(@"c:\temp\input.txt"); // use RegEx to search for dog and replace it with cat ignoring case text = Regex.Replace(text, "dog", "cat", RegexOptions.IgnoreCase); // write the result out to a file File.WriteAllText(@"c:\temp\output.txt", Text); |
C# Read Text File To read the […]
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