## Key Down

`computers.key_down(strid, ComputerKeyDownParams**kwargs)  -> ActionResult`

**post** `/computers/{id}/key-down`

Press and hold a keyboard key. Use with key_up to release. Supports modifier keys (shift, ctrl, alt, meta) for complex interactions like Shift+Click.

**Supported keys:** Modifier keys (shift, ctrl, alt, meta), special keys (enter, escape, tab, backspace, delete, space), arrow keys (arrowup, arrowdown, arrowleft, arrowright), navigation (home, end, pageup, pagedown), function keys (f1-f24), and any single character (a-z, 0-9).

**Key names are case-insensitive:** "shift", "Shift", and "SHIFT" all work.

**Example Shift+Click:** 1) key_down "shift", 2) click at coordinates, 3) key_up "shift"

### Parameters

- `id: str`

- `key: Optional[str]`

  Key name to press. Case-insensitive. Examples: "shift", "ctrl", "a", "Enter"

- `tab_id: Optional[str]`

  Optional tab ID for browser sessions (ignored for desktop sessions)

### Returns

- `class ActionResult: …`

  - `error_message: Optional[str]`

  - `executed_tab_id: Optional[str]`

  - `page_context: Optional[V2GoBackendInternalTypesPageContext]`

    - `device_scale_factor: Optional[float]`

    - `is_main_tab: Optional[bool]`

    - `page_height: Optional[int]`

    - `page_width: Optional[int]`

    - `scroll_x: Optional[float]`

    - `scroll_y: Optional[float]`

    - `tab_id: Optional[str]`

    - `title: Optional[str]`

    - `url: Optional[str]`

    - `viewport_height: Optional[int]`

    - `viewport_width: Optional[int]`

  - `request_id: Optional[str]`

  - `result: Optional[Dict[str, object]]`

  - `status: Optional[str]`

  - `timestamp: Optional[str]`

### Example

```python
import os
from tzafon import Lightcone

client = Lightcone(
    api_key=os.environ.get("TZAFON_API_KEY"),  # This is the default and can be omitted
)
action_result = client.computers.key_down(
    id="id",
)
print(action_result.executed_tab_id)
```