Function WinSetTransByHandle

WinSetTransByHandle(windowHandle: bigint, transparency: number): Promise<number>
Sets the transparency level of a window. 0 is fully transparent, 255 is fully opaque.
Parameters
- windowHandle: bigint
  The handle of the window.
- transparency: number
  The transparency level (0-255).
Returns Promise<number>
A promise that resolves to 1 if successful, or 0 otherwise.
Example
```
import { WinSetTransByHandle, WinGetHandle } from '@ahmic/autoit-js';

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

await WinSetTransByHandle(windowHandle, 128);
```
See
https://www.autoitscript.com/autoit3/docs/functions/WinSetTrans.htm
- Defined in win-set-trans-by-handle.ts:46