Strange error with TeeCreateMetafile

[johnnix]

Hello,

I am using TeeChart 2015.16 version and I am having a rare issue with the TeeCreateMetafile function. Attached you can find 2 wmf files created with the TeeCreateMetafile function in 2 different computers. Although the metafile canvas dimensions are different in the "bad" file you can see that the plot is not stretched.

I have 2 users reporting this and they both use a laptop computer, no client of mine reported this when running my application from a desktop. I cannot guess what could be wrong as I cannot reproduce the error here. Any hints on how this can be fixed?

Thank you very much for your time

[johnnix]

... I am very sorry, could not upload .wmf files so I included them in the attached .zip

[Yeray]

Hello,

I've tried to reproduce the problem with the following example:

Code: Select all

procedure TForm1.FormCreate(Sender: TObject);
var tmpMetaFile: TMetafile;
begin
  Chart1.View3D:=false;
  Chart1.Legend.Visible:=false;

  with Chart1.AddSeries(THorizLineSeries) as THorizLineSeries do
  begin
    Pen.Width:=2;
    FillSampleValues();
  end;

  tmpMetaFile:=Chart1.TeeCreateMetafile(True, Chart1.ClientRect);
  Image1.Picture.Graphic:=tmpMetaFile;
end;

But it seems to work as expected for me here both with TeeChart v2015.16 and the current release v2016.18:

Project3_2016-10-20_13-22-07.png (31.32 KiB) Viewed 13054 times

We'd need a simple application we can run as-is to reproduce the problem here.

[johnnix]

Hello,

Unfortunately I cannot reproduce the error here also dp creating a sample application will not work, as I mentioned it happens to 2 of my clients only but I do not know what to do to get some ore information on how to trace it

[Yeray]

Hello,

I understand it but, as you will understand, we can't fix a bug we can't unequivocally identify. And to do that we need to reproduce it here. That's why we use to ask for simple applications we can run as-is to reproduce the problems.

[johnnix]

So, is there any debug information I can retrieve and save from my clients PC in order to help identify this?

[Yeray]

Hello,

Maybe your customers could export their charts to a .tee file (in Text Format if possible):

Code: Select all

SaveChartToFile(Chart1, 'C:\tmp\exportedChart.tee', True, True);

Then we could try to reproduce the problem here with a code similar to this:

Code: Select all

procedure TForm1.FormCreate(Sender: TObject);
var tmpMetaFile: TMetafile;
begin
  LoadChartFromFile(Chart1, 'C:\tmp\exportedChart.tee');

  tmpMetaFile:=Chart1.TeeCreateMetafile(True, Chart1.ClientRect);
  Image1.Picture.Graphic:=tmpMetaFile;
end;