FlexCell VCL: export to Metafile (EMF)

FLX TMS FlexCel for VCL & FMX
1

Is it possible to export to a WINDOWS metafile file analogous to the SVG export? This is only needed by me under WINDOWS VCL.

2

Hi,
Sorry, the only vectorial formats we support are SVG and PDF. You could always "cheat" by exporting as a png, then converting the png into a wmf, but it won't be vectorial. To export to png you can do:

var exportInfo: IImgExportInfo := nil;
var img := TFlexCelImgExport.Create(xls, true);
try
  img.ExportNext('r:\test.png', TImageColorDepth.TrueColor, TXlsImgType.Png, exportInfo);
finally
  img.Free;
end;

But sadly you can't use TXlsImgType.EMF as file format, because GDI+ doesn't support saving to emf/wmf. You would have to export as png, then put the png inside a wmf/emf, which you can do with a TMetafile/Canvas. An example would be:

var png := TPicture.Create;
try
  png.LoadFromFile('r:\test.png');
  var meta := TMetafile.Create;
  try
    meta.SetSize(png.Width, png.Height);
    meta.Enhanced := true; //for emf
    var Canvas := TMetafileCanvas.CreateWithComment( meta, 0, 'test', 'this is a test');
    try
      Canvas.Draw(0, 0, png.Graphic);
    finally
      Canvas.Free;
    end;
    meta.SaveToFile('r:\test.wmf');
  finally
    meta.Free;
  end;
finally
  png.Free;
end;

But again, note that this will just copy put the png inside the metafile, it won't be a "real" metafile.