So sollte es funktionieren:
Delphi-Quellcode:
procedure TForm1.LabelXClick(Sender: TObject);
var
i: Integer;
begin
for i := 0 to Components.ComponentCount - 1 do
if Components[i] is TMyButtonDingens then
with TControl(Components[i]) do
if PtInRect(Rect(0, 0, Width, Height), ScreenToClient(Mouse.CursorPos)) then
Click;
end;