[Lazarus] TAChart cannot zoom

["Leonardo M. Ramé"]

Hi, I don't know what I did, but I no longer can zoom in / zoom out (by 
dragging the mouse pointer) my chart. If I draw 1000 data points, they 
all are drawn into the chart, but I only want to display part of that 
data, for example 100 points.

Here's the definition of my TAChart object (extracted from the lfm), I 
hope this help:

   object HAChart: TChart
     Left = 0
     Height = 206
     Top = 302
     Width = 582
     AxisList = <
       item
         Grid.Color = 2434341
         TickColor = clSilver
         Alignment = calRight
         Group = 1
         Marks.Format = '%0.2f'
         Marks.Range.Max = 50
         Marks.Style = smsCustom
         Minors = <>
         Title.LabelFont.Orientation = 900
       end
       item
         Grid.Color = clGray
         Grid.Visible = False
         Intervals.MaxLength = 100
         Intervals.MinLength = 30
         Alignment = calBottom
         Marks.LabelFont.Orientation = 750
         Marks.Format = '%2:s'
         Marks.Source = ListChartSource1
         Marks.Style = smsLabel
         Minors = <>
       end>
     BackColor = clBlack
     ExpandPercentage = 5
     Extent.UseYMin = True
     Foot.Brush.Color = clBtnFace
     Foot.Font.Color = clBlue
     Frame.Color = clMedGray
     Title.Brush.Color = clBtnFace
     Title.Font.Color = clBlue
     Title.Text.Strings = (
       'TAChart'
     )
     Toolset = ChartToolset1
     OnAfterDrawBackWall = CandleStickChartAfterDrawBackWall
     OnAfterPaint = CandleStickChartAfterPaint
     Align = alClient
     Color = clBlack
     ParentColor = False
     ParentShowHint = False
     OnMouseMove = CandleStickChartMouseMove
   end


Regards,

-- 
Leonardo M. Ramé<br>
Medical IT - Griensu S.A.<br>
Av. Colón 636 - Piso 8 Of. A<br>
X5000EPT -- Córdoba<br>
Tel.: +54(351)4246924 +54(351)4247788 +54(351)4247979 int. 19<br>
Cel.: +54 9 (011) 40871877