# 06: IPC control

This example exposes explicitly typed functions through `IpcHandler`.
The handler target is `mybar`.

After starting the configuration in an isolated runtime, inspect and call it with the installed CLI:

```sh
qs ipc show
qs ipc call mybar show
qs ipc call mybar hide
qs ipc call mybar toggle
qs ipc call mybar setText "hello"
```

`IpcHandler` signals are observed with `qs ipc wait` or `qs ipc listen` when supported by the installed version.
They are not consumed through an invented cross-process `IpcHandler.ipcBus` object.

The installed `qmllint` may not handle dynamically declared, explicitly typed `IpcHandler` functions.
A non-zero result without diagnostics is not proof that the example is invalid or valid.
Cross-check the exact function syntax against the installed `IpcHandler` type page,
then use an isolated load and IPC test.

Static checking does not prove IPC registration or calls.