📄 unit1.pas
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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, ExtCtrls;
type
TfrmMain = class(TForm)
Image1: TImage;
TrackBar1: TTrackBar;
procedure FormCreate(Sender: TObject);
procedure TrackBar1Change(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
frmMain: TfrmMain;
implementation
{$R *.dfm}
procedure TfrmMain.FormCreate(Sender: TObject);
begin
self.AlphaBlend:=true;
self.TrackBar1.Min:=0;
self.TrackBar1.Max:=255;
self.TrackBar1.Frequency:=25;
end;
procedure TfrmMain.TrackBar1Change(Sender: TObject);
begin
self.AlphaBlendValue:=self.TrackBar1.Max-self.TrackBar1.Position;
end;
end.
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