Title: Create component at runtime
Do not forget that all components in Delphi are the objects.
Call Create method to create the component and destruct it by Free method.
If the component is a window, set parent window and position.
This code showing it:
procedure TForm1.Button1Click(Sender: TObject);
var
Button: TButton;
begin
Button:=TButton.Create(Form1);
try
with Button do
begin
Parent:=Self;
Left:=Random(Form1.ClientWidth-Width);
Top:=Random(Form1.ClientHeight-Height);
Caption:='Button';
end;
except
Button.Free;
end;
end;