WPF Ctrl+C Hotkey Registration Overrides/Stops Typical Copy Functionality

Question

I have tried looking into this for a while now and have not been able to come up with an answer that has worked. I am trying to register my WPF C# application to listen for Ctrl+C from anywhere while the application is running. The code below is part of my application and does trigger when the user presses Ctrl+C, however, the contents of the Clipboard are stale (the contents are from a previous copy before the application was running). The AnimateWindow function is being called so I know my hotkey registration is working.

So, my issue is that it appears registering for the hotkey below is overriding the copy functionality. I would like to keep this functionality intact as it is part of how my application works. I need to take what was copied and use that data for a database query and to fill a TextBox.

This is just a snippet of the entire project, please let me know if additional example code is needed to help answer. Thank you!

    [DllImport("user32.dll")]
    private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);

    [DllImport("user32.dll")]
    private static extern bool UnregisterHotKey(IntPtr hWnd, int id);

    // CTRL + C Hotkey
    private const int COPY_ID = 9001;
    private const uint MOD_CONTROL = 0x0002; // Modifier: Control
    private const uint VK_C = 0x43; // 'C' key
    /* Registering the hotkeys to be monitored */

    protected override void OnSourceInitialized(EventArgs e)
    {
        base.OnSourceInitialized(e);

        _windowHandle = new WindowInteropHelper(this).Handle;
        _source = HwndSource.FromHwnd(_windowHandle);
        _source.AddHook(HwndHook);

        RegisterHotKey(_windowHandle, COPY_ID, MOD_CONTROL, VK_C); // 'C' key

    }

    /* The hook for pressing a hotkey */
    private IntPtr HwndHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
    {
        const int WM_HOTKEY = 0x0312;
        switch (msg)
        {
            case WM_HOTKEY:
                switch (wParam.ToInt32())
                {
                    case COPY_ID:

                        AnimateWindow();

                        break;
                }
         }
    }