Gui4Cli is a free, lightweight, event-driven scripting language specifically designed to build graphical user interfaces quickly and easily. Developed by Dimitris Keletsekis, it originally debuted on the Amiga platform and was later ported to Microsoft Windows. Its primary strength lies in its ability to serve as a visual “wrapper” or front-end to drive command-line interface (CLI) applications and scripts without requiring complex programming knowledge. Core Concepts of Gui4Cli
Structure: Scripts are written in plain text files. The very first line of any Gui4Cli program must begin with the header G4C.
Event-Driven: The language functions by waiting for user actions (like clicking a button, resizing a window, or selecting a file) and executing specific commands in response.
Coordinate-Based Layout: Widgets are positioned using precise coordinate layouts, which can be modified directly in the script or tweaked using its built-in visual editor.
“Visual DOS”: It is designed to take text commands or scripts (AmigaDOS, Windows Batch, or external languages) and cleanly map them to graphical buttons and fields. Key Capabilities and Features
Native Control Integration: Supports complete UI features including treeviews, listviews, tabbed interfaces, combo boxes, grids, and progress bars.
Broad Multimedia Support: Handles media assets like JPG/GIF/BMP images, custom icons, and older multimedia frameworks like DirectX.
Extensibility: Features deep system automation, registry control, file notifications, and advanced math evaluation.
External Interfaces: Can link directly with advanced utilities through DLLs, including SQLite databases, cURL file transfers, Python/Ruby interfaces, and Internet Explorer active browser controls. Anatomy of a Gui4Cli Script
A standard Gui4Cli configuration uses simple, Basic-like syntax blocks to construct windows and populate them with interactive variables.
G4C MyFirstGui WINDOW 100 100 300 150 “App Title” WinAttr Style resize // Creates a button inside the window coordinates XBUTTON 20 40 100 30 “Click Me” // Event command: Triggers when the user clicks the button info “Hello World! You clicked the button.” // Native window closing routine xOnClose guiquit #this Use code with caution. Building Interfaces Fast: The Workflow
Write the Script: Open any basic text editor to draft window attributes (WINDOW), size dimensions, and elements (XBUTTON, XLISTVIEW).
Use the Visual Editor: Run the script through Gui4Cli and activate its built-in visual editor to click, drag, and fine-tune your widget layout without guessing pixel numbers.
Attach Actions to Events: Insert code blocks beneath your UI widgets to directly trigger terminal events or call system tools when clicked.
You can download version releases or read documentation directly through open repositories such as the Gui4Cli SourceForge Page. If you would like to explore this further, let me know:
What specific command-line tool or script are you trying to build a GUI for?
Which operating system (Windows or Amiga) are you developing on? Creating a Gui4Cli Program Guide | PDF – Scribd
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