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unit Unit1;
{$mode objfpc}{$H+}
interface
uses
SysUtils, Forms, Graphics, StdCtrls, ExtCtrls, ComCtrls, LazUTF8;
type
{ TForm1 }
TForm1 = class(TForm)
Bevel1: TBevel;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Image1: TImage;
TrackBar1: TTrackBar;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure TrackBar1Change(Sender: TObject);
private
procedure UpdateTrackBar;
public
end;
var
Form1: TForm1;
implementation
{$R *.lfm}
{ TForm1 }
procedure TForm1.Button1Click(Sender: TObject);
begin
Image1.Picture.LoadFromFile(ExtractFilePath(ParamStrUTF8(0)) + 'icons' + PathDelim + 'lazarus.ico');
UpdateTrackbar;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Image1.Picture.LoadFromFile(ExtractFilePath(ParamStrUTF8(0)) + 'icons' + PathDelim + 'lazarus.icns');
UpdateTrackbar;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Icon.Assign(Image1.Picture.Graphic);
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
Application.Icon.Assign(Image1.Picture.Graphic);
end;
procedure TForm1.TrackBar1Change(Sender: TObject);
begin
if TCustomIcon(Image1.Picture.Graphic).Count > TrackBar1.Position then
TCustomIcon(Image1.Picture.Graphic).Current := TrackBar1.Position;
end;
procedure TForm1.UpdateTrackBar;
begin
TrackBar1.Enabled := Image1.Picture.Graphic is TCustomIcon;
if TrackBar1.Enabled then
begin
TrackBar1.Min := 0;
TrackBar1.Max := TCustomIcon(Image1.Picture.Graphic).Count - 1;
TrackBar1.Position := TCustomIcon(Image1.Picture.Graphic).Current;
TrackBar1Change(TrackBar1);
end;
end;
end.
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