fltk.core.gl

FLTK OpenGL Library Bindings

This package provides low-level D bindings for the FLTK OpenGL library (libfltk_gl), which adds OpenGL rendering support to FLTK windows.

Features:

• OpenGL context creation and management
• Double buffering support
• GL context sharing between windows
• Overlay support (where available)

Memory Management:

• GL windows created with fltk_gl_window_new() must be destroyed with fltk_gl_window_delete()
• GL contexts are managed automatically by FLTK

Thread Safety:

• OpenGL contexts are thread-specific
• Use make_current() before GL calls in each thread

Example:

import fltk.core.gl;
import fltk.core.enums : FltkMode;

void main() {
   if (!hasGlSupport()) {
      writeln("OpenGL not available");
      return;
   }

   // Create GL window with double buffering and depth buffer
   auto mode = FltkMode.DOUBLE | FltkMode.DEPTH;
   auto win = fltk_gl_window_new(640, 480, "OpenGL Demo");
   if (win !is null) {
      fltk_gl_window_show(win);
      // ... render loop ...
      fltk_gl_window_delete(win);
   }
}