TAdvSignatureCapture saves a black image

VCL TMS VCL UI Pack
1

Hi


TAdvSignatureCapture.SaveToImageFile('xy.jpg') saves a complete black image. What can i do?

Thanks, Sven 
2

I cannot reproduce this.

Is this the latest version of the component?
Test code applied to a default TAdvSignatureCapture yields a white image:
 AdvSignatureCapture1.SaveToImageFile('e:\tms\temp\signature.jpg');
3

I found out.


it happens, if i save the image after closing the form.

with TMyForm.Create(Application.MainForm) do
  try
    if ShowModal = mrOK then
    begin
      AdvSignatureCapture1.SaveToImageFile(_SaveToFilename);
      Result := true;
    end;
  finally
    Free;
  end;

i will move it to OnClose
4

(That worked in an earlier version of TMS. we moved to the latest version)

5

I checked the repository and in the past months, nothing was changed in this area in our component. I think it is not a good practice to do this after ShowModal. From OnClose or OnCloseQuery is a better approach.

6

ok, thanks

the previous used version is very old, 4 years and more