# process.window_hidden

## Function

Hide the console child process window under Windows. This method is suitable for the bt_app desktop application or background service to start the console program while continuing to read the progress through the stdout/stderr pipe.

## Syntax

```bt
process(program).window_hidden()
```

## Parameters

No parameters.

## Return value

| Type | Description |
| ------ | ------ |
| Process | Returns the new process builder. |

## Example

```bt
cmd = process('docx_to_img.exe')
    .arg('@/docx')
    .window_hidden()
    .child()

result = type(cmd)

// Output: Process
print result
```

## Notes

- The console child process window is hidden by default in non-inherit_stdio() scenarios under Windows; explicitly calling window_hidden() can make the business code clearer.
- window_hidden() will cancel the interactive stdio inheritance semantics of inherit_stdio() and child() will continue to use the default stdout/stderr pipe.
- This method does not change the system window behavior under Linux/macOS and only retains chain configuration compatibility.