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BGRABitmap - Certain Images don't load

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bembulak:
Hi All!

As now solved here http://www.lazarus.freepascal.org/index.php/topic,14738.0.html my program works quite well.
Now I got stuck with the image loading routine. I have to load Paintings and Photos different sizes and file formats. Most of them (over 90% and therefore my main target) is JPG and PNG.
On some images it works perfect, on others it does nothing. At the moment I don't see any structure, why the loading fails.

Here's what I do, when loading the images:

--- Code: ---procedure ThwndMain.tbbLoadImageClick(Sender: TObject);
begin
  openImageDlg.FileName := '';
  recB := rect(0, 0, 0, 0);

  if openImageDlg.Execute then
  begin
    if fileExists(openImageDlg.FileName) then
    begin

      try
      rectList.Clear();
      orig.LoadFromFile(openImageDlg.FileName);
      recim.LoadFromFile(openImageDlg.Filename);
      DrawingArea.Width := orig.Width;
      DrawingArea.Height := orig.Height;

      with recim do
      begin
        with bitmap do
        begin
          Canvas.Pen.Color := clRed;
          Canvas.Pen.Width := 3;
          Canvas.Pen.Style := psDash;
          Canvas.Brush.Style := bsClear;
        end;
      end;

      orig.Draw(DrawingArea.Canvas, 0, 0, True);
      DrawingArea.Enabled := True;
      except
         on E: Exception do
            ShowMessage(E.ClassName + ' ' + E.Message);
      end; // end try
      end;   // end file.exists.
    end // end open Image dialog
    else
    begin
        ShowMessage('File does not exist???');
    end;
end;

--- End code ---
The program does not come up with a message box, nor an exception. It just doesn't load certain images.
No matter if it's JPG or PNG big or small - sometimes nothing happens at all.

If it helps: my system language is German, so I use "Umlauts" in some filenames/paths.

Any help or hint is highly appreciated. Thanks for reading!

lainz:
you must use FileExistsUTF8

and you can load recim from orig instead loading twice from file.

bembulak:

--- Quote ---you must use FileExistsUTF8
--- End quote ---
Thanks.
Done that and I can load images from such a path now, however I get a debugger error + Exception now:
Debugger says: File "E:\Daten\öää\test.png" does not exist
and the Exception.Message is: FPImageException Error while reading stream: File "E:\Daten\öää\test.png" does not exist

circular:
What about using LoadFromFile(UTF8ToAnsi(openImageDlg.FileName)); ?

bembulak:

--- Quote from: cirular ---What about using LoadFromFile(UTF8ToAnsi(openImageDlg.FileName)); ?

--- End quote ---
It really seems to work now. Now I can go on ...

Thank you both very much for the help!

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