To help visitors navigate the large amount of code on this site, I’ve created the following directory.  I try to update this page as soon as new code is loaded, but if you cannot find what you are looking for please try the search box in the top-right.

Entries are roughly sorted in order of popularity (from most hits to least hits).

Unless otherwise noted, all code is available in both executable and Visual Basic 6.0 formats.

Tutorials

• VB Graphics Programming: An Introduction
• VB Graphics Programming: Part 1 – Pure VB (PSet and Point)
• VB Graphics Programming: Part 2 – Beginning API (GetPixel and SetPixel)
• VB Graphics Programming: Part 3 – Advanced API (GetBitmapBits/SetBitmapBits and GetDIBits/StretchDIBits)
• VB Graphics Programming: Part 4 – Advanced Optimizations

Bioinformatics Code

• Artificial Life Simulator
• Hidden Markov Models, the Viterbi Algorithm, and CpG Islands

Graphics Code

• Custom Image Filter Engine (real-time)
• Image Contrast (real-time)
• Image Levels Dialog (input / output / midtone in real-time)
• Image Curves Dialog (via cubic splines in real-time)
• Variable Alpha-Transparency (real-time)
• Image Histograms Part 1 (histogram generation)
• Image Histograms Part 2 (stretching and equalizing)
• Nature-Inspired Image Filters
• Bilinear Image Resampling
• Smooth Color Gradients (linear, real-time)
• Screen Capturing
• Blacklight Effect (real-time)
• Filling Contiguous Image Regions (via ExtFloodFill)
• Image Edge Detection (real-time)
• Sepia / “Antique” Effect (real-time)
• Color-Shifting (real-time)

Game Code

• Tile-Based Map Editor
• Basic Game Physics (Velocity and Acceleration)
• Mathematically Generated Fire v2 (v1 available here)