Function ControlGetFocusByHandle

ControlGetFocusByHandle(windowHandle: bigint): Promise<string>
Gets the ID of the control that has keyboard focus in a window.
Parameters
- windowHandle: bigint
  The handle of the window to access.
Returns Promise<string>
A promise that resolves to the ID of the control that has keyboard focus.
Example
```
import { ControlGetFocusByHandle, WinGetHandle } from '@ahmic/autoit-js';

const windowHandle = await WinGetHandle('Untitled - Notepad');

const id = await ControlGetFocusByHandle(windowHandle);

console.log(id); // Output: "Edit1"
```
See
https://www.autoitscript.com/autoit3/docs/functions/ControlGetFocus.htm
- Defined in control-get-focus-by-handle.ts:53