App Icon

Set the dock/taskbar icon from a PNG file:

$window->setWindowIcon(__DIR__ . '/assets/app-icon.png');

At Startup

To set the icon immediately at startup (before the event loop draws the window), use App::afterInit():

use Libui\App;
use Libui\Ffi;
use Libui\Window;

Ffi::init();
$window = new Window('My App', 600, 400);

App::afterInit(function () use ($window): void {
    $window->setWindowIcon(__DIR__ . '/assets/app-icon.png');
});

$window->run();

Platform Details

• macOS: Uses NSApp setApplicationIconImage: via the bridge dylib
• Linux: Uses PebView set_icon()
• Windows: Uses PebView set_icon()