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Pascal/Delphi Source File  |  2001-09-10  |  1.0 KB  |  48 lines
  1. unit Canvas_Transparency;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, StdCtrls, TeEngine, Series, BubbleCh, ExtCtrls, TeeProcs, Chart,
  8.   jpeg;
  9.  
  10. type
  11.   TTransparencyForm = class(TBaseForm)
  12.     Series1: TBubbleSeries;
  13.     Label1: TLabel;
  14.     ScrollBar1: TScrollBar;
  15.     Label2: TLabel;
  16.     procedure ScrollBar1Change(Sender: TObject);
  17.     procedure FormCreate(Sender: TObject);
  18.   private
  19.     { Private declarations }
  20.   public
  21.     { Public declarations }
  22.   end;
  23.  
  24. implementation
  25.  
  26. {$R *.DFM}
  27.  
  28. procedure TTransparencyForm.ScrollBar1Change(Sender: TObject);
  29. begin
  30.   Chart1.Title.Transparency:=ScrollBar1.Position;
  31.   Chart1.Legend.Transparency:=ScrollBar1.Position;
  32.   Chart1.BackWall.Transparency:=ScrollBar1.Position;
  33.  
  34.   Label2.Caption:=IntToStr(ScrollBar1.Position)+'%';
  35. end;
  36.  
  37. procedure TTransparencyForm.FormCreate(Sender: TObject);
  38. begin
  39.   inherited;
  40.   Series1.FillSampleValues(10);
  41.  
  42.   ScrollBar1Change(Self);
  43. end;
  44.  
  45. initialization
  46.   RegisterClass(TTransparencyForm);
  47. end.
  48.