Custom series pointers?

Gary · Post by **Gary** » Thu Jun 22, 2006 9:48 pm

I was wondering how I would go about applying a series with a custom image as a pointer that will display on both the graph and the legend.

I'm also currently running version 6 if that makes any difference.

Narcís · Post by **Narcís** » Fri Jun 23, 2006 8:35 am

Hi Gary,

You can do something like this:

Code: Select all

Private Sub Form_Load()
    TChart1.AddSeries scPoint
    
    TChart1.Series(0).FillSampleValues 10
    TChart1.Series(0).asPoint.Pointer.Visible = False
End Sub

Private Sub TChart1_OnAfterDraw()

    For i = 0 To TChart1.Series(0).Count - 1
        X = TChart1.Series(0).CalcXPos(i) - 20
        Y = TChart1.Series(0).CalcYPos(i) - 20
        
        TChart1.Canvas.Draw X, Y, Picture1.Picture
    Next
    
End Sub

However, you should manually draw the symbol on the legend. TeeChart Pro v7 ActiveX already includes OnLegendDrawSymbolEvent specially designed for this purpose. An example of the event usage is also included in v7.

Also notice that TeeChart Pro v7 ActiveX includes a set of tools and instructions to automatically upgrade v6 applications to v7.

Gary · Post by **Gary** » Fri Jun 23, 2006 3:36 pm

Thanks Narcís. I'm not really sure how to implement this using Visual C++ instead of VB, though. I understand what's going on with the code, I just can't find enough information in the documentation or on the forums to get it up and running.

I found this post and it looks to be similar to what I'm working on
http://www.teechart.net/support/viewtop ... ght=images, but again I'm not really sure how to implement the ListImages.Add , , LoadPicture . . . in Visual C++.

Any help would be appreciated.

Narcís · Post by **Narcís** » Mon Jun 26, 2006 8:12 am

Hi Gary,

Have you seen the VC++ examples included with TeeChart Pro ActiveX? You'll find them at C:\Program Files\Steema Software\TeeChart Pro v7 ActiveX Control\Examples\Visual C++ (default english installation path).