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 MIO.ExecuteOpenDialog: MultiSelect parameter
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PeterPanino

707 Posts

Posted - Jan 18 2023 :  14:52:44  Show Profile  Reply
When I select multiple multi-frame images (e.g. TIFF) in the MIO.ExecuteOpenDialog:

var filename := ImageEnMViewMultiImages.MIO.ExecuteOpenDialog(
    'Select Multi-Frame Images',  // Title
    -1,                           // DefaultFilter
    -1,                           // Limit To FileType
    True,                         // Always Animate
    True,                         // MultiSelect !!!
    iesfMultiImagesOnly);         // ShowFormats

  if filename <> '' then
  begin
    // ERROR if multiple files are selected:
    ImageEnMViewMultiImages.MIO.LoadFromFile(filename);
  end;


If MultiSelect = True in MIO.ExecuteOpenDialog, the multiple files are separated by a '|' character. Do I have to separate these files manually, or is there a built-in method to AUTOMATICALLY load all the multiple selected files in the ImageEnMViewMultiImages control?

xequte

37479 Posts

Posted - Jan 18 2023 :  23:01:51  Show Profile  Reply
Hi Peter

Please use LoadFromFiles:

// Execute the open dialog and load the returned list of selected files
filenames := ImageEnMView1.MIO.ExecuteOpenDialog('', '', true, 1, '', true);
ImageEnMView1.MIO.LoadFromFiles(filenames);


Nigel
Xequte Software
www.imageen.com
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PeterPanino

707 Posts

Posted - Jan 19 2023 :  03:10:50  Show Profile  Reply
Hi Nigel,

Thanks for the information. As LoadFromFiles can be used for any number of loaded files (both single files and multiple files), is there also a built-in method to get the NUMBER OF LOADED FILES?
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PeterPanino

707 Posts

Posted - Jan 19 2023 :  03:26:23  Show Profile  Reply
Meanwhile, I use this workaround:

function OccurrencesOfChar(const S: string; const C: Char): Integer;
begin
  Result := 0;
  for var i := 1 to Length(S) do
  begin
    if S[i] = C then
      Inc(Result);
  end;
end;

var LoadedFilesCount := OccurrencesOfChar(filenames, #124) + 1;
CodeSite.Send('LoadedFilesCount', LoadedFilesCount);


Is this reliable and correct?
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xequte

37479 Posts

Posted - Jan 19 2023 :  13:50:03  Show Profile  Reply
Hi Peter

Your code looks correct, and should be reliable.

Nigel
Xequte Software
www.imageen.com
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