QR Code Generator (C# / WPF) A simple and lightweight desktop application built using C# and WPF (.NET) that allows users to quickly generate high-quality QR codes from any text, URL, email, or custom data. The application provides a clean UI, real-time QR preview, and the ability to save generated QR codes as image files.
💡 QR Code Generator
🌟 Project Overview
QR Code Generator Pro is a high-quality desktop application built on the modern WPF (Windows Presentation Foundation) framework. The application's core purpose is to elevate standard QR code generation by providing a Luxury Dark-Mode UI and advanced customization features, such as gradient coloring and logo embedding.
This project involved migrating the legacy WinForms solution to a stable, advanced WAML/C# solution to achieve a highly modern user experience.
🚀 Key Features
Luxury UI: A modern, responsive dark-mode interface designed using XAML Styles for a superior user experience.
Multi-Payload Generation: Supports structured output for complex data formats:
WiFi: Generates QR codes that allow devices to connect instantly.
Contact (vCard): Creates vCard formats for quick contact saving on phones.
Email: Formats mailto: links with predefined subject and body.
Aesthetic Rendering: Custom C# logic applies a unique Purple-to-Blue Linear Gradient directly onto the QR code matrix.
Center Overlay: Provides the capability to embed Text or Company Logos in the center of the QR code, with automatic enforcement of High Error Correction (Level H) to ensure scan-ability.
Quality Control: Options to select output resolution (up to 2000x2000) and Error Correction Level (L, M, Q, H).
Easy Export: One-click functionality to Save (PNG/JPG) or Copy the generated image to the system Clipboard.
🛠️ Technology Stack
Component
Technology
Role
Framework
C# (.NET 8.0)
Core logic and data formatting.
User Interface
WPF / XAML
Hardware-accelerated presentation layer for the modern UI.
Encoding
ZXing.Net
Fast and reliable QR code encoding library.
Rendering
System.Drawing
Used for custom gradient and logo placement.
⚙️ Setup and Running the Project (Visual Studio 2022)
Prerequisites
Visual Studio 2022: (Community Edition is free).
Required Workloads: The .NET desktop development workload must be installed.
- Project Restoration
Open Visual Studio 2022.
Click "Open a project or solution" and select the QRCodeGeneratorWPF.csproj file.
Visual Studio will automatically Restore all necessary NuGet packages.
- Launch Application
In the Visual Studio toolbar, press F5 or click the green Start button.
The application will launch in a maximized window with the Luxury UI.
🐛 Troubleshooting (Common Issues)
InitializeComponent Error: This usually occurs when project files are out of sync. To fix, manually delete the bin and obj folders from the project directory and then perform a Rebuild Solution.
Silent Fail: If the app builds but does not launch, ensure your App.xaml file has StartupUri="MainWindow.xaml" correctly set.
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