Windows: visible, flashing PowerShell window, when using hooks

[goebbe]

Testing vykar 0.16.1 on Windows 10,
when setting up a hook that executes Windows code (using the PowerShell) I ran into the following issue:

The Power-Shell Window is displayed for a short moment (Window-flashing), when the hook is executed.
This is of course pretty distracting.

Searching for a solution to prevent the "Window flashing", via the internet,
Google Search (i.e. Gemini) came up with the following suggestion for Rust programmes that execute PowerShell commands.

Since this might be relevant/ helpful for vykar, in order to prevent Window-flashing, I decided to post the suggestion here:

The Rust Solution (If running from your Rust program)

If you are triggering this check inside a Rust program using std::process::Command, you can use a Windows-specific extension called creation_flags.
By passing the flag 0x08000000 (CREATE_NO_WINDOW), Windows will execute PowerShell natively in the background without creating a GUI window at all.

Here is an example for a Rust function that checks the condition of a script:

use std::os::windows::process::CommandExt; // <-- CRITICAL: Needed for creation_flags
use std::process::Command;

fn check_powershell_condition(script: &str) -> bool {
    // 0x08000000 tells Windows: "Do not create a console window for this process"
    const CREATE_NO_WINDOW: u32 = 0x08000000;

    let output = Command::new("powershell")
        .args(["-NoProfile", "-Command", script])
        .creation_flags(CREATE_NO_WINDOW) // <-- Suppresses the flashing window
        .output()
        .expect("Failed to execute PowerShell command");

    if output.status.success() {
        let result_str = String::from_utf8_lossy(&output.stdout).trim().to_lowercase();
        result_str == "true"
    } else {
        false
    }
}

As always, feel free to close this issue, if this type of approach cannot be used in Vykar/ there are better solutions.