Articles pages: (The articles are just for graphic editing software engineer to accumulate knowledge to design better software for the end customers. They are not well-organized.)
Related knowledge of photo editing software:
Rich Design Time Featured TreeList Control
Cool Owner Drawn Menus with Bitmaps
An Aqua Button Control Written in C# for .NET
Steganography 12 - Regions with different data density
Fun with Common Controls Bitmaps and Toolbars
Creating a 3D book-shaped application with speech and ink using WPF 3.5
A Graphical WPF Ribbon Control Builder
Peter - Programmers Extensive Text Editor
Scrollable Dialog in Pure Win32 API
Getting to know IExtenderProvider
CHoverButton - A simple hoverbutton with one bitmap and a tooltip
Vista themed Owner-Drawn and Full-Custom Push/Menu/Image Buttons