Overview
FLTK (Fast, Light Toolkit) is a cross-platform C++ GUI toolkit that offers a simple and efficient way to create graphical user interfaces. FLTK is designed to be small and lightweight, making it particularly well-suited for applications that require minimal resource usage.
Key features
- Minimalistic design for low resource consumption
- Cross-platform support (Windows, macOS, Linux)
- C++ based, enabling efficient performance
- Includes a variety of widgets and controls
- OpenGL support for graphics-intensive applications
Common use cases
- Simple and lightweight desktop applications
- Embedded systems requiring GUIs
- Cross-platform tools and utilities
- Applications needing minimal setup and dependencies
- Education and research projects needing graphical interfaces
Installation
# Install FLTK from source or package manager # On Linux-based systems sudo apt-get install libfltk1.3-dev # Building FLTK applications usually involves C++ toolchainsExample
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>
void button_callback(Fl_Widget* widget, void* data) {
fl_message("Button clicked!");
}
int main() {
Fl_Window* window = new Fl_Window(340, 180, "Simple FLTK Example");
Fl_Button* button = new Fl_Button(20, 40, 300, 100, "Click Me");
button->callback(button_callback);
window->end();
window->show();
return Fl::run();
}