Dithering an image using the Floyd‑Steinberg algorithm in C#
In my previous introductory post, I briefly described the concept of dithering an image. In this article, I will describe how to dither an image in C# using the Floyd–Steinberg algorithm.
Posts tagged with 'c#'
Quick and simple sprite sheet packer source
For some time now, I've started moving away from monolithic and complex GUI tools in favour of more streamlined command line interfaces. While Spriter is a fairly competent product in its own right, for some jobs it is just overkill and so this simple tool (with source available) was created.
Richard Moss
ColorEcho - adding colour to echoed batch text
We use batch files for... well, pretty much everything. From simple files that simple optimize modified graphics, to the tendril-like files that build our software. For some time now, I've been using `cecho.exe` from a CodeProject article so that I highlight errors and successes. Sadly this tool doesn't output anything if a console window isn't in use (for example from a CI server) and so I created a quick C# version for a direct replacement.
Richard Moss
Hosting a ColorGrid control in a ToolStrip
The `ColorGrid` control is a fairly useful control for selecting from a predefined list of colours. However, it can take up quite a bit of screen real estate depending on how many colours it contains. This article describes how you can host a `ColorGrid` in a standard `ToolStrip` control, providing access to both the `ColorGrid` and the `ColorPickerDialog`, with some custom painting to show the active colour on the button to round it off.
Richard Moss
csharp
winforms
interop
combobox
getcomboboxinfo
comboboxinfo
nativewindow
wm-lbuttonup
wm-lbuttondblclk
Adding Double Click support to the ComboBox control
I was recently using a `ComboBox` control with the `DropDownStyle` set to `Simple`, effectively turning into a combined text box and list box. However, when I wanted an action to occur on double clicking an item in the list I found that the control doesn't actually offer double click support. I suppose I should have just ripped out the combo box at that point and went with dedicated controls but instead I decided to extend `ComboBox` to support double clicks.
Richard Moss
Dragging items in a ListBox control with visual insertion guides
In my last post, I described how to [drag and drop items to reorder a `ListView` control](/blog/dragging-items-in-a-listview-control-with-visual-insertion-guides). This time I'm going to describe the exact same technique, but this time for the more humble `ListBox`.
Richard Moss
Dragging items in a ListView control with visual insertion guides
I can't remember when it was I first saw something being dragged with an insertion mark for guidance. Whenever it was, it was a long long time ago and I'm just catching up now. This article describes how to extend a `ListView` control to allow the items within it to be reordered, using insertion guides.
Richard Moss
Configuring the emulation mode of an Internet Explorer WebBrowser control
Occasionally I need to embed HTML in my applications. If it is just to display some simple layout with basic interactions, I might use a basic component that doesn't need the weight of Internet Explorer. In most cases however, I need a more complex layout, JavaScript or I might want to display real pages from the internet - in which case I'm lumbered with the `WebBrowser` control. This control annoys me in myriad ways, but it does get the job done. One of the things that occasionally frustrates me is that by default it is essentially an embedded version of Internet Explorer 7 - or enabling Compatibility Mode in a modern IE session. Not so good as more and more sites use HTML5 and other goodies. This article provides a helper class to easily set the browser emulation version from your C# applications.
Richard Moss
Batch Syntax Highlighting in the DigitalRune Text Editor Control
A brief article which describes how to create a definition ruleset to allow better Batch/Command style formatting in the DigitalRune/SharpDevelop Text Editor control.
Richard Moss
ColorPicker Controls 1.0.4.0 Update
The [ColorPicker Controls](https://github.com/cyotek/Cyotek.Windows.Forms.ColorPicker) have been updated to version 1.0.4.0. This is a fairly substantial update, with quite a few bug fixes and enhancements to the code. I'll also briefly discuss plans for future updates to the library.
Richard Moss
Adding drag handles to an ImageBox to allow resizing of selection regions
The `ImageBox` control is already a versatile little control and I use it for all sorts of tasks. One of the features I recently wanted was to allow users to be able to select a source region, then adjust this as needed. The control already allows you to draw a selection region, but if you need to adjust that ... well, you can't. You can only draw a new region. This article describes how to extend the `ImageBox` to include the ability to resize the selection region. A older demonstration which shows how to drag the selection around has also been incorporated, in a more tidy fashion than the demo.
Richard Moss
Writing Photoshop Color Swatch (aco) files using C#
The second in a two part series that describes how to load and save Adobe Photoshop colour swatch files using C#. This second article provides a full example project that will write RGB and HSL based swatch files.