unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
ScrollBar1: TScrollBar;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure ScrollBar1Change(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
form1.AlphaBlend:=true;
ScrollBar1.enabled:=true;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
scrollbar1.Min:=0;
scrollbar1.Max:=255;
scrollbar1.position:=255;
scrollbar1.Enabled:=False;
form1.AlphaBlend:=False;
end;
procedure TForm1.ScrollBar1Change(Sender: TObject);
begin
Form1.AlphaBlendvalue:=ScrollBar1.Position; //AlphaBlendvalue
end;
end.
