How can I handle the arrow keys in a custom component in delphi?

Question

I am using delphi XE. I am developing a component that comes from TPanel. TApGUITab=class(Tpanel) I handled the key down event by processing the WMKeyDown message, but it does not fire when I press the arrow keys, and instead of triggering the event, it sets focus to another control. What should I do now?

Answer 1

It is easy. Just reply to the message WM_GETDLGCODEand return

Message.Result := Message.Result or DLGC_WANTCHARS or
                                     DLGC_WANTARROWS or DLGC_WANTTAB or
                                     DLGC_WANTALLKEYS;