FCL-Image Jpeg Reader/Writer FInfo variable

MaxM — Wed, 14 Jun 2023 05:39:05 -0000

in the TFPReadJPEG = class(TFPCustomImageReader)
the variable

FInfo: jpeg_decompress_struct;

Should be moved to protected so the derived classes can read it.

Same thing for TFPWriterJPEG FInfo.

new version of ZMSQL

Zlatko Matić — Sun, 26 Feb 2023 17:33:11 -0000

In meantime, I have done small update, please download this version: https://matasoft.hr/pl_ZMSQL_v7.6.2.7z

new version of ZMSQL

Zlatko Matić — Thu, 23 Feb 2023 10:22:00 -0000

Hello Werner,

Are you maintainer of ZMSQL package in Lazarus CCR?
If so, can you please upload my latest work on CodeTyphon ZMSQL package?
Link for download: https://matasoft.hr/pl_ZMSQL__v7.6.2_2023-02-21.7z

I would also kindly ask you to create Lazarus package as well, as I am working in CodeTyphon and don't have Lazarus instance...

I have done many changes, of which most important are:
ZMSQL version 7.6.2, 21.02.2023: by Zlatko Matić
ZMQueryDataset is now descendant of TRxMemoryData by defualt, but you can always switch back to TBufDataset, by compiler directive.
Reason for this decision is because TBufDataset cannot load data from large csv files.
ZMBufDataset removed from package.
Removed dependency on TSdfDataset. TCSVdataset is now used for importing data from CSV files.
When importing data from CSV files, via TCSVDataset, FieldDef.Size and Field.Size properties are now determined by inspecting actual values through all rows.
Rason for this is to decrease memory consumption for loading large csv files.
Note that TCSVDataset does setup Size property always to Size=255, which is not optimal...
CopyFromDataset is renamed to CopyFromADataset, in order not to hide CopyFromDataset coming from TBuFDataset
Added function DetermineSeparator(AFileName: String; var HasFieldNames: Boolean): Char; to be used for automatic determination of field delimiter in a csv file.
Resolved bug that was preventing multiple consecutive loading of different csv files.
Addded procedure GetFieldsListFromCSVFile(List: TStrings); This is fast method to determine field names in the csv file registered as TableName.
Corresponding change made in unit vsb_Zmsql, in order for TZMQueryBuilder can load field information fast.
Added procedure CopyDataFromDataset(DataSet: TDataSet);
Various other minor changes and bugfixes

Thank you in advance,
Zlatko Matić (tatamata on forum)

AbUnzipper: ExtractToStream raises Exception "EAbZipInvalidPassword"

Holger Scholz — Thu, 12 May 2022 18:00:51 -0000

When using a password encrypted zip file and try to extract a text file to a stream I'm getting an exception, password is correct. Am I doing anything wrong?

function TForm1.GetTextFileFromZIP(Filename: String): TStringlist;
var
  AStream: TMemoryStream;
  AList: TStringlist;
begin
  AStream := TMemoryStream.Create;
  AList := TStringList.Create;
  try
    try
      AbUnZipper.ExtractToStream(FileName, AStream);
      AStream.Position := 0;
      AList.LoadFromStream(AStream);
      Result := AList;
    except
      on e: Exception do
        ShowMessage('Exception Details: ' +  E.ClassName +  '/' +  E.Message);
    end;
  finally
    AStream.Free;
    AList.Free;
  end;
end;

"Cannot extract file - invalid password

in file '....\source\AbUnzPrc.pas' in line 1012 "

Contributing code

Boban_Spasic — Sat, 05 Feb 2022 17:52:04 -0000

Hi, I made some additions to IndustrialStuff. How can I contribute the code easy way, without a need to set up Git or SVN clients?

LazBarcodes - Getting access violation error when Text input is long

Adnan — Sun, 02 Jan 2022 11:42:02 -0000

When long input is assigned to Text property it shows:

Project xyz raised exception class 'External: SIGSEGV'.

In file 'libs/lazbarcodes/src/lbc_helper.pas' at line 247

The crash happens when 4296, 3000, 2000 etc. number of chars are input. 1000 chars turns out ok. 1450 works but 1500 raises the error. I haven't tested if this is related to component's width or height.

Issue with more details is here

I wasn't sure if it's a bug or I messed up something, so posted here first.

installing RichMemo via package manager

Ruud van der Made — Mon, 06 Jul 2020 20:47:51 -0000

I am learning Lazarus via a youtube series of videos on Delphi(sorry, it was the first acceptable video I found), it need the component TRichMemo; I found in the online package manager that it would be possible to donload and install RichMemo in Lazarus; I have installed release 2.0.8, running Windows10home on laptop. When I try to activate this RichMemo install in that manager I do not see if it completes succesfully nor where the component should be added. Question: how can I install this package (and maybe more on a later moment) to get this component available. I do like the Lazarus package very much and will indeed use it for making applications and maybe I can join the team for translations and more things.

RX - Translation for Brazilian Portuguese

Pedro Araújo — Sat, 29 Feb 2020 23:00:40 -0000

Hello!

I've translatad the messages of file rxdconst to Brazilian Portuguese.

Impossible to access ti Git or SVN

Hichem BOUKSANI — Sat, 05 May 2018 20:32:20 -0000

Could not access to git, there are no files.
And SVN I get no repository found

Commit with subversion

Yuri Gureev — Wed, 06 Dec 2017 22:27:01 -0000

Hello! I make some work to make poosible to create help files to RxLib with .sh script and make a .bat file to make the same possible to windows-users. If it helps you somehow How can i do a commit, or hou can i join to developers?

Recent posts to Discussion

FCL-Image Jpeg Reader/Writer FInfo variable

new version of ZMSQL

new version of ZMSQL

AbUnzipper: ExtractToStream raises Exception "EAbZipInvalidPassword"

Contributing code

LazBarcodes - Getting access violation error when Text input is long

installing RichMemo via package manager

RX - Translation for Brazilian Portuguese

Impossible to access ti Git or SVN

Commit with subversion