TTMSFNCSignatureCapture.SaveToImageFile('signature.png') not in PNG format!

FNC TMS FNC UI Pack
1

Hello!

I tried to save a SignatureCapture with SameToImageFile with given PNG-filename according to the documentation (both pdf and web).
But the file is stored in BMP-format. Also checked the code - Bitmap is only used.

Br,
/Werner

3

Hi,

The TTMSFNCSignatureCapture uses a TBitmap canvas to draw the signature and save it to a file. The behaviour is framework specific. Saving to a PNG in FMX should work.

Are you using VCL? In that case if you need PNG format, you can work around by doing the following:

procedure TForm1.Button1Click(Sender: TObject);
var
  png: TPngImage;
  strm: TMemoryStream;
begin
  strm := TMemoryStream.Create;
  png := TPngImage.Create;
  try
    TMSFNCSignatureCapture1.SaveToImageStream(strm);
    png.Assign(TMSFNCSignatureCapture1.GetImageFromStream(strm));
    png.SaveToFile('test_image.png');
  finally
    strm.Free;
    png.Free;
  end;
end;