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 ImageEn Library for Delphi, C++ and .Net
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 PdfViewer.LoadFromFile(WideString)
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aleatprog

135 Posts

Posted - Sep 04 2024 :  07:10:11  Show Profile  Reply
Hi,

is there a way to load with ImageEnView.PdfViewer.LoadFromFile() files with a path length > 255?

Ale

xequte

38616 Posts

Posted - Sep 04 2024 :  16:14:48  Show Profile  Reply
Hi Ale

Well, I think the real issue is that Windows controls will not load a file with a path > 255 characters. The workaround would be to use the short form version of the filename. See the Windows function, GetShortPathName.

Nigel
Xequte Software
www.imageen.com
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aleatprog

135 Posts

Posted - Sep 05 2024 :  08:45:37  Show Profile  Reply
Hi Nigel,

thank you for the hint. The ExtendedPrefix (\\?\) removes the MAX_PATH restriction. The following code works fine to me:

ImageEnView.PdfViewer.LoadFromFile(VerifyPath(Path));

function TfMain.VerifyPath(Path: String): String;
begin
  if NOT Path.StartsWith('\\') AND (Length(Path) > 255) then
    Result := '\\?\' + Path;
end;


Ale
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xequte

38616 Posts

Posted - Sep 05 2024 :  16:21:39  Show Profile  Reply
Thanks for letting us know, Ale

Nigel
Xequte Software
www.imageen.com
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