Trying to catch arrows keydown events

Hello.

I am able to do that by overriding "ProcessCmdKey", but I have problem to detect "shift + arrow" or "ctrl + arrow" keydown event (I need also to be able to detect that). So that would be much easier if I could catch the event in the main form keydown event (Form1_KeyDown) !

I read that setting KeyPreview to true should be the solution. So I added this line: this.KeyPreview = true;
But I am still not able to catch the arrow keydown event, when the focus is on a button.

It there a way to catch arrow keydown events into the main form keydown event (Form1_KeyDown) ?

Or is it an obligation to override "ProcessCmdKey" ?

If the lonely way is to override "ProcessCmdKey", is it possible to catch also "shift + arrow" and "ctrl + arrow" from there ?

Thank you.

Code:

---

const int WM_KEYDOWN = 0x100;
const int WM_SYSKEYDOWN = 0x104;
protected override bool ProcessCmdKey(ref Message m, Keys keyCode)
{
    if ((m.Msg == WM_KEYDOWN) || (m.Msg == WM_SYSKEYDOWN))
    {
        switch (keyCode)
        {
            case Keys.F | Keys.Control:
                //do something;
                break;
            case Keys.F5:
                //do something;
                break;
            case Keys.Control | Keys.F10:
                //do something;
                break;
        }
    }
    return base.ProcessCmdKey(ref m, keyCode);
}

---

This works well.
Thank you very much.