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1 | unit ButtonC;
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2 |
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3 | interface
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4 |
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5 | uses
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6 | ButtonBase,
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7 | WinProcs, Classes, Graphics;
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8 |
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9 | type
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10 | TButtonC = class(TButtonBase)
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11 | constructor Create(aOwner: TComponent); override;
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12 | private
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13 | FIndex: integer;
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14 | procedure SetIndex(x: integer);
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15 | published
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16 | property Visible;
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17 | property ButtonIndex: integer read FIndex write SetIndex;
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18 | property OnClick;
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19 | protected
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20 | procedure Paint; override;
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21 | end;
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22 |
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23 | procedure Register;
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24 |
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25 | implementation
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26 |
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27 | procedure Register;
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28 | begin
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29 | RegisterComponents('Samples', [TButtonC]);
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30 | end;
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31 |
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32 | constructor TButtonC.Create;
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33 | begin
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34 | inherited Create(aOwner);
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35 | ShowHint:=true;
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36 | SetBounds(0,0,12,12);
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37 | end;
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38 |
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39 | procedure TButtonC.Paint;
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40 | begin
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41 | with Canvas do
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42 | if FGraphic<>nil then
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43 | BitBlt(Canvas.Handle,0,0,12,12,FGraphic.Canvas.Handle,
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44 | 169+13*Byte(FDown),159+13*FIndex,SRCCOPY)
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45 | else begin Brush.Color:=$0000FF; FrameRect(Rect(0,0,12,12)) end
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46 | end;
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47 |
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48 | procedure TButtonC.SetIndex(x: integer);
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49 | begin
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50 | if x<>FIndex then
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51 | begin
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52 | FIndex:=x;
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53 | Invalidate
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54 | end
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55 | end;
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56 |
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57 | end.
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58 |
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