| # Copyright (c) 2022-2026, The Isaac Lab Project Developers (https://github.com/isaac-sim/IsaacLab/blob/main/CONTRIBUTORS.md). | |
| # All rights reserved. | |
| # | |
| # SPDX-License-Identifier: BSD-3-Clause | |
| import omni.ext | |
| # Functions and vars are available to other extension as usual in python: `example.python_ext.some_public_function(x)` | |
| def some_public_function(x: int): | |
| print("[{{ name }}] some_public_function was called with x: ", x) | |
| return x**x | |
| # Any class derived from `omni.ext.IExt` in top level module (defined in `python.modules` of `extension.toml`) will be | |
| # instantiated when extension gets enabled and `on_startup(ext_id)` will be called. Later when extension gets disabled | |
| # on_shutdown() is called. | |
| class ExampleExtension(omni.ext.IExt): | |
| # ext_id is current extension id. It can be used with extension manager to query additional information, like where | |
| # this extension is located on filesystem. | |
| def on_startup(self, ext_id): | |
| print("[{{ name }}] startup") | |
| self._count = 0 | |
| self._window = omni.ui.Window("My Window", width=300, height=300) | |
| with self._window.frame: | |
| with omni.ui.VStack(): | |
| label = omni.ui.Label("") | |
| def on_click(): | |
| self._count += 1 | |
| label.text = f"count: {self._count}" | |
| def on_reset(): | |
| self._count = 0 | |
| label.text = "empty" | |
| on_reset() | |
| with omni.ui.HStack(): | |
| omni.ui.Button("Add", clicked_fn=on_click) | |
| omni.ui.Button("Reset", clicked_fn=on_reset) | |
| def on_shutdown(self): | |
| print("[{{ name }}] shutdown") | |