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Pascal/Delphi Source File  |  2001-09-10  |  1.3 KB  |  61 lines

  1. {$I TeeDefs.inc}
  2. unit Mouse_Wheel;
  3.  
  4. interface
  5.  
  6. uses
  7.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  8.   Base, StdCtrls, TeEngine, Series, ExtCtrls, TeeProcs, Chart;
  9.  
  10. type
  11.   TMouseWheelForm = class(TBaseForm)
  12.     Series1: THorizLineSeries;
  13.     CheckBox1: TCheckBox;
  14.     LabelMouse: TLabel;
  15.     procedure CheckBox1Click(Sender: TObject);
  16.     procedure FormCreate(Sender: TObject);
  17.     procedure Chart1Click(Sender: TObject);
  18.     procedure FormShow(Sender: TObject);
  19.   private
  20.     { Private declarations }
  21.   public
  22.     { Public declarations }
  23.   end;
  24.  
  25. implementation
  26.  
  27. {$R *.DFM}
  28.  
  29. procedure TMouseWheelForm.CheckBox1Click(Sender: TObject);
  30. begin
  31.   TeeUseMouseWheel:=CheckBox1.Checked;
  32.   Chart1.SetFocus;
  33. end;
  34.  
  35. procedure TMouseWheelForm.FormCreate(Sender: TObject);
  36. begin
  37.   inherited;
  38.   Series1.FillSampleValues(100);
  39.   Chart1.TabStop:=True;
  40. end;
  41.  
  42. procedure TMouseWheelForm.Chart1Click(Sender: TObject);
  43. begin
  44.   if not Chart1.Focused then Chart1.SetFocus;
  45. end;
  46.  
  47. procedure TMouseWheelForm.FormShow(Sender: TObject);
  48. begin
  49.   inherited;
  50.   {$IFDEF D4}
  51.   if Mouse.WheelPresent then
  52.      LabelMouse.Caption:='Mouse Wheel Present !'
  53.   else
  54.      LabelMouse.Caption:='Your Mouse has no Wheel. Sorry.';
  55.   {$ENDIF}
  56. end;
  57.  
  58. initialization
  59.   RegisterClass(TMouseWheelForm);
  60. end.
  61.