using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Threading;

public static class DisplayFusionFunction
{
    // update this value to match the hotkey you've assigned to this function -- ignoring ctrl, alt, etc. (I use Alt+A)
    static Keys hotkeyKey = Keys.A;

    [DllImport("user32")]
    static extern bool GetAsyncKeyState(int vKey);
    
    public static void Run(IntPtr windowHandle)
    {
        // if cursor is already unlocked by hotkey, don't start hotkey function again
        if (BFS.ScriptSettings.ReadValueBool("Cursor unlocked")) return;
    
        // unlock the mouse cursor since hotkey has been pressed down
        Cursor.Clip = Rectangle.Empty;
        BFS.ScriptSettings.WriteValueBool("Cursor unlocked", true);
        
        // wait until the hotkey is released
        while (GetAsyncKeyState((int)hotkeyKey)) {
            Thread.Sleep(10);
        }
        
        // then lock the mouse cursor again
        Cursor.Clip = BFS.Monitor.GetMonitorBoundsByMouseCursor();
        BFS.ScriptSettings.WriteValueBool("Cursor unlocked", false);
    }
}