Vider le buffer du clavier/de la souris

procedure EmptyKeyQueue;
var
Msg: TMsg;
begin
while PeekMessage(Msg, 0, WM_KEYFIRST, WM_KEYLAST,
PM_REMOVE or PM_NOYIELD) do;
end;

procedure EmptyMouseQueue;
var
Msg: TMsg;
begin
while PeekMessage(Msg, 0, WM_MOUSEFIRST, WM_MOUSELAST,
PM_REMOVE or PM_NOYIELD) do;
end;