[Lazarus] Fwd: Re: How to detect that the Alt-key is released?

[Jürgen Hestermann]

Am 2015-08-02 um 14:42 schrieb Jürgen Hestermann:
 > Am 2015-08-02 um 14:33 schrieb JuuS:
 >> (btw. this WON'T work in onkeyup with just the alt key...when you lift
 >> alt (ie, keyup) it is no longer down and so is not in "Shift", to see it
 >> work do something like alt-a).
 > But that's just what I want:
 > Detect the release of the Alt+key (independend from other keys state).
 > So it's not possible?

Well, I just found out how it works myself:

---------------------------
procedure TForm1.FormKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
begin
if Key=vk_Menu then
    ShowMessage(' ALT key released');
end;
---------------------------

The main point I missed was that I did not know that the Alt-key is "vk_Menu".
A strange name for the Alt-key. ;-(