Add-Type @'
using System;
using System.Runtime.InteropServices;
public class HKTest {
    [DllImport("user32.dll", SetLastError=true)] public static extern bool RegisterHotKey(IntPtr hWnd, int id, uint mods, uint vk);
    [DllImport("user32.dll")] public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
    [DllImport("kernel32.dll")] public static extern IntPtr GetConsoleWindow();
}
'@
$h = [HKTest]::GetConsoleWindow()
Write-Host "hwnd=$h"
foreach ($spec in @(@('Ctrl+Alt+Q', 3, 0x51), @('Ctrl+Alt+K', 3, 0x4B), @('Ctrl+Alt+W', 3, 0x57), @('Ctrl+Shift+Space', 6, 0x20))) {
    $ok = [HKTest]::RegisterHotKey($h, 1, [uint32]$spec[1], [uint32]$spec[2])
    $err = [System.Runtime.InteropServices.Marshal]::GetLastWin32Error()
    Write-Host ($spec[0] + ' => ' + $ok + ' err=' + $err)
    if ($ok) { [void][HKTest]::UnregisterHotKey($h, 1) }
}