{
HELP !
F1!
F1!
}
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
btn: array of TButton;
nr_btn: word;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
{Here create a Button}
if nr_btn < 10 then begin
setlength(btn,nr_btn+1);
btn[nr_btn] := TButton.Create(Application);
btn[nr_btn].Left := nr_btn*5;
btn[nr_btn].Top := nr_btn*5;
btn[nr_btn].Caption := '&'+inttostr(nr_btn)+' Btn Created';
btn[nr_btn].Parent := Form1;
btn[nr_btn].Name := 'btn'+inttostr(nr_btn);
inc(nr_btn);
end
else messagedlg('Max nr_btn!',mtInformation,[mbOk],0);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
{Here copy a button ????}
if (nr_btn < 10)and(nr_btn<>0) then begin
setlength(btn,nr_btn+1);
btn[nr_btn] := TButton.Create(Application);
btn[nr_btn].Assign(btn[0]); //Here raise an error
{
Error: Cannot assign a TButton to a TButton
How to Copy
}
inc(nr_btn);
end
else messagedlg('Arghhh !',mtError,[mbOk],0);
end;
end.