https://github.com/efeckc17/simple-todo-c

A lightweight, native Windows Todo application built with pure C and the Win32 API. Just 60 KB
https://github.com/efeckc17/simple-todo-c

c gui minimal native todo todo-app tray-application winapi-application windows

Last synced: about 1 month ago
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A lightweight, native Windows Todo application built with pure C and the Win32 API. Just 60 KB

• Host: GitHub
• URL: https://github.com/efeckc17/simple-todo-c
• Owner: Efeckc17
• License: mit
• Created: 2025-05-10T20:38:39.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2026-04-07T18:27:56.000Z (2 months ago)
• Last Synced: 2026-04-07T20:26:07.152Z (2 months ago)
• Topics: c, gui, minimal, native, todo, todo-app, tray-application, winapi-application, windows
• Language: C
• Homepage:
• Size: 80.1 KB
• Stars: 563
• Watchers: 3
• Forks: 33
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# 🌟 Simple Todo (C / WinAPI)

![Platform](https://img.shields.io/badge/platform-windows-blue?style=for-the-badge)

![Language](https://img.shields.io/badge/language-C-brightgreen?style=for-the-badge)

![License](https://img.shields.io/badge/license-MIT-yellow?style=for-the-badge)

![Size](https://img.shields.io/badge/size-60%20KB-brightgreen?style=for-the-badge)

[![GitHub release (latest by tag)](https://img.shields.io/github/v/tag/Efeckc17/simple-todo-c?style=for-the-badge&color=green&label=latest)](https://github.com/Efeckc17/simple-todo-c/releases)

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A modern :) , native Windows Todo application built with C and Win32 API. This project demonstrates advanced Windows GUI programming and system integration capabilities.

![Todo App Screenshot](img/home.png)

## ✨ Features

- 📝 Create, edit, and delete todo items

- ✅ Mark tasks as complete

- 💾 Persistent storage in AppData

- 🔔 System tray integration (minimize to tray)

- 🌙 Native Windows look and feel

- 🚀 Auto-start with Windows option

- 🔍 Real-time search functionality with case-insensitive matching

## 🛠️ Technical Details

- Written in pure C

- Uses Win32 API for GUI

- System tray integration

- Lightweight native executable

- Modern Windows visual styles with manifest

## 🐛 Debugging



  

[![Debugging](https://img.shields.io/badge/📚_Debugging_Guide-Click_Here-blue?style=for-the-badge)](DEBUGGING.md)




Check out our [debugging guide](DEBUGGING.md) for instructions on how to debug this application using Visual Studio, VS Code, or other tools.

## 💾 Data Storage

The application stores todos in a binary file:

- **Location**: `%APPDATA%\TodoApp\todos.dat`

- **Format**: Binary file containing the entire todo list

- **Capacity**: Maximum 100 todos

## 📋 Requirements

- Windows OS

- MinGW-w64 (GCC compiler)

- Windows SDK (included with MinGW)

## 🚀 Building from Source

1. Install MinGW-w64:

   - Download from [MinGW-w64 website](https://www.mingw-w64.org/downloads/)

   - Or use [MSYS2](https://www.msys2.org/)

   - Add MinGW's bin directory to your system PATH

2. Clone the repository:

   ```bash

   git clone https://github.com/Efeckc17/simple-todo-c.git

   cd simple-todo-c

   ```

3. Build the project:

   ```bash

   .\build.bat

   ```

## 🎮 Usage

1. Run `bin/todo.exe`

2. Use the interface to:

   - Add new todos with the "Add" button

   - Edit existing todos by selecting and clicking "Edit"

   - Delete todos with the "Delete" button

   - Mark todos as complete with the "Complete" button

   - Set priority levels for each todo

## 🏗️ Project Structure

```

.

├── src/

│   ├── app.manifest

│   ├── main.c           # Application entry point

│   ├── todo.c           # Todo management logic

│   ├── todo.h           # Todo data structures and declarations

│   ├── gui.c            # GUI implementation

│   └── utils/

│       ├── search.c     # Search functionality implementation

│       └── search.h     # Search function declarations

├── bin/                 # Compiled executable

├── build.bat            # Build script

└── README.md            # This file

```

## 🔧 Development

The project uses the following key components:

- **Win32 API**: For window management and GUI

- **Common Controls**: For modern UI elements

- **UXTheme**: For Windows visual styles

- **File I/O**: For data persistence

## 📝 License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## 🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

## 📫 Contact

Toxi360 - [@Efeckc17](https://github.com/Efeckc17)

Project Link: [https://github.com/Efeckc17/simple-todo-c](https://github.com/Efeckc17/simple-todo-c)