TurboMagic

Good news: V1.10 was finally released via GetIt a few days ago finally.

It should workfor more users than V1.00 did as some bugs got fixed and
it can handle the licenses a user has to agree now as well. It will present

them and one can opt to agree or decline.

Another small addition is a help popup describing the available command

line parameters for this tool.

Hello,

I have a TfrxChartview TChart on a FastReports report. It contains a bar series and I'd like to find out the length of
the marks added to the bars in order to be able to move their y-position if they do not fit on the bar itsself (as they
would overlap with the bottom axis then). Additionally one needs to find out the bar length for this. The latter one
seems to work somehow. The retrieval of the marks dimensions doesn't work as it does in a small VCL test application
where the chart is sitting on a form.

There you can use this one:

Chart.Series[si].Marks.Positions.Position[i].Bounds.Width

But when using the chart on a FastReports report Chart.Chart.Series[si].Marks.Positions.Position is nil.
The values have been added via Chart.Chart.SeriesData.YSource, as the data is not comming from a database.

Any ideas?

Ok, for a regular TChart on a form that stuff works. But I forgot to tell, that this is a TfrxChartview on a Fast Reports report. I'll create another post for the problems I have there now.

Thanks for all this information! Will ty it out as soon as I get back to this project after pentacoste!

Hello,

I've got a 2D TChart with 2 bar series in Delphi 12.3 (included Standard edition oif TChart).

Both are set to Stack -> Side all, because the 1st series shall use the left axis, the 2nd series shall use the right axis.

Bottom axis label format has been set to text and when clicking a button in the application I add a few bars for both

series like this:

Chart.Series[0].Add(5, 'Bar name1 Series 1');

Chart.Series[1].Add(500, 'Bar name1 Series 2');

It displays the labels on the bars of the 1st series but never on the 2nd series.
Attached is my test application.

Another question would be if it is possible to have a custom setting for the Marks position for an individual bar of a series.
Or asked otherwise: as can seen in my demo I aligned the marks so that they are painted over the bar from the upper end
of the bar. This is good, except for bars with a 0 value as the 0 is the painted into the bottom axis. I wanted to avoid that one
for such bars but keep the mark painted over the bar and not on top of it.

Last question: I cannot seem to register a login for the support forums on steema.com. I do not find a way to do so and the
admin contact page is disabled as well. Anybody any clue whether this is intentional or how to desl with this?

ChartTest.zip

If the issue has not been reported to Steema I doubt we'll get it fixed.

I must second fisipjm! Sorry for that!
But if things work out as they should (afaik somebody was/is on holiday which is needed for that) there should be an improved V1.10
available in the near future.

Thus is unfortunatelly not in my hands. The ball is in EMBT's field 😉
But I was informed that the required engineer was on holiday and will be tasked with publishing this as soon as he's back.
Do you have any immediate need for this tool in the new version? If so contact me.

Hello,

if you haven't noticed yet: with 12.3 Embarcadero also released a new additional tool for subscription owners via
GetIt package manager (Tools/GetIt package manager). It is called "The Android SDK manager GUI" and can be used
to update Android SDK/NDK etc. in a graphical way.

It is a replacement for the graphical SDK manager the Android SDK once contained, which cot replaced by a cumbersome
batch file (yes, the batch file is good for automation, but otherwise cumbersome).

The SDK manager GUI can also export the selected configuration and import it on another PC, great for easy synchronisation
of development machines.

What the tool doesn't do is to update the paths in the IDE and it is unfortunately not added to the menu in the IDE.

Hello,

in order to decide how to properly fix this issue in DEC (Delphi Encryption Compendium) I would like to look up the exact original definition
of the KDF algorithms for the case of an empty key/password being given as argument. Unfortunately that is in some IEEE paper/standard,
which is behind a paywal. Is there anybody having access to IEEE P1363?

Here's the DEC issue:

https://github.com/MHumm/DelphiEncryptionCompendium/issues/76

Cheers

TurboMagic

If you want to print bitmaps to an ESC/POS printer via sending raw ESP/POS commands you need to send 1 column and 8 rows of the image per byte.
Means: there is a command which you tell how many columns youl will send and then you send one byte for each column containing the data for 8 rows
bitwise encoded.

So if you send bytes with the most significant bit and the last significant bit set but no other bits set with that command you'd get two lines in parallel.
But the question would be why to do it that way?

Why not use TPrinter's capabilities?

Well, you get something for free! And for quite a lot of folks its good enough. It's also more up to date than previous community editions were.

A solution was found now:
The FBDriverLink of the FDConnection used in the application must have Embedded := true as well!

Hello,

I'm using D12.1, FireDAC and Firebird 5.0 embedded.

I try to create a backup using TFDIBBackup but that fails with this failure message:

"Unable to complete network request to host "xnet://Global

 [FireDAC][Phys][FB]invalid service handle

 [FireDAC][Phys][FB]invalid service handle"

I can successfully create a backup using gbak from command line though.
I'm also quite sure creating a backup from my application works when Firebird server is installed.

Here's my TFDIBBackup initialization code:

constructor TDBBackup.Create(const DatabaseFileName : string;
                             const VendorLib        : string);
begin
  inherited Create;

  FFBDriverLink             := TFDPhysFBDriverLink.Create(nil);
  FFBDriverLink.VendorLib   := VendorLib;
  FFBDriverLink.Embedded    := true;

  FFBBackup                 := TFDIBBackup.Create(nil);
  FFBBackup.ConnectTimeout  := 0;
  FFBBackup.Database        := DatabaseFileName;
  FFBBackup.DriverLink      := FFBDriverLink;
  FFBBackup.Password        := c_DBPassword;
  FFBBackup.QueryTimeout    := 2;
  FFBBackup.UserName        := c_DBUserName;
  FFBBackup.Verbose         := true;
  FFBBackup.Protocol        := TIBProtocol.ipLocal;

  FFBBackup.AfterExecute    := OnBackupFinishedInternal;
  FFBBackup.OnProgress      := OnBackupProgressInternal;
  FFBBackup.OnError         := OnBackupErrorInternal;

  FIsBackupRestoreActive    := false;
end;

Vendor lib points to a fbclient.dll which exists and has the other libraries for embedded in the same directory and all other fbclient.dlls
on the system are the exact same version and have the exact same other files in their directory:

fbclient.dll
firebird.conf
firebird.msg
gbak.exe
gfix.exe
ib_util.dll
icudt63.dll
icudt63l.dat
icuin63.dll
icuuc63.dll
isql.exe
msvcp140.dll
vcruntime140.dll
intl\fbintl.conf
intl\fbintl.dll
plugins\chacha.dll
plugins\engine13.dll

What am I'm doing wrong?
Regular DB SQL queries via FireDac work just fine.

Cheers

TurboMagic

Hello,

this is the same issue as the one described in the German DP (https://www.delphipraxis.net/215286-port-nicht-erzeugt-2.html),
but there I don't get any further ideas. So I hope somebody here can help me.

I have some application written in Delphi 10.3.3 which provides two endpoints and has worked in the past.
One endpoint delivers a simplistic status website and the other can be used to query data via REST.

For both the user can configure the port and whether to use HTTPS or not. If HTTPS is used a self signed certivicate is used
and the application provides V1.0.2j of the OpenSSL libraries.

Now I have the reproduceable case that the port for the REST interface is never created (says netstat -p TCP on the cmd.exe console)
and the one for the status website some times is but most of the times isn't.

The code for creating both DataSnap server instances is identical and looks like this:
 

  if FMyServiceEnabled and (not FRESTServer.Active) then
  begin
    FRESTServer.Bindings.Clear;
    FRESTServer.DefaultPort := FMyServicePort;
    FRESTServer.Active := True;

    log.Send(LevelBlue, cCategory, 'REST Server gestartet. Port: ' + FMyServicePort.ToString);
  end;

  if FStatusWebsite and (not FWebServer.Active) then
  begin
    FWebServer.Bindings.Clear;
    FWebServer.DefaultPort := FStatusPort;
    FWebServer.Active := True;

    log.Send(LevelBlue, cCategory, 'Web Server gestartet. Port: ' + FStatusPort.ToString);
  end; 

When looking into the logs generated, they show that this code was actually run.
The issue happens on a customers PC and on my own machine as well.

With another tool suggested by somebody in German DP (writing in EN 😉 ) I was able to see that both bind ahnd listen are called on the socket.
But netstat doesn't show it...

What can cause this and how to further diagnose this? Esp. what data snap does?

How is your text output handled within the VST? It could be that you're doing tings in OnGetText which are a bit time consuming.

Hello,

if somebody is interested or needs to convert his JavaDoc comments to XMLDOC
he might find use of my new little command line utility.

It can be found here:
https://github.com/MHumm/JavaDoc2XMLDOC

Yes, I'm aware that it currently only converts summary, description, parameters and returns sections
of JavaDoc and that it is written in procedural style (ok, code got longer than anticipated but it's
structured code and contains XMLDOC comments 😉 ).

License is Apache 2.0.
So you can modify it if necessary.

So the recommendation is still the one from the stack overflow post: to build a static lib, which results in a .a file?

Sorry, but it's now still unclear how to handle iOS in this regards (I don't have the toolchain for this one yet):

1. Can Delphi create a dylib for iOS somebody else wih some other language could consume?
   (the StackOverflow post doesn't talk about dylibs)
   I know that it can for Android if creating a normal FMX app and stripping the FMX part out of that. But for iOS?
 

2. What would speak against .a files? What's the downside of those getting linked into the application of the person
    consuming those?

I simply need to create something somebodfy else in some different language has to use and that needs to work
on Android and on iOS. And before investing time into some implementation which will not work on iOS at the end
I wanted to get clarification about that one.

Another question turned up now: from the shared objects (.so) I can create for Android I know, that I need to create one for 32 bit and one for 64 bit
and need to place them into the right folders on the target device via deployment manager. Both have the same name though.

Now what about .a files?
When I generate them for 32 and 64 bit they will get output in the ios32 and ios64 or Android32 and Android64 subolders I guess.
But the user of them using a different programming environment,, how has he to handle them? Place them into bitnnes/cpu dependant folders
and have something conditional in his application so the right variant will be linked in?

Thanks for the answer! Does this mean this is "self contained"? That's how I understood this. For as non package developer
it always sounded like packages require that you provide the used RTL packages as well, but I guess this is not the case here?

Thanks for the reply. As I haven't done any iOS development yet I don't have a MAC yet and thus wanted
to investigate first whether it is possible for iOS at all.

For Android it is possible but as written not via a library/DLL project! That won't properly work!
As described one needs to generate a FMX project for this, as each of those generates an SO
and then you strip out the FMX part and only grab the generated SO, which in a normal FMX project
would be packed into the APK/AAB.

I have some code written in Delphi which should be reused in mobile projects which are unfortunately not written in Delphi.

I have found out that for Android you can create a shared object .so. Strangely not via using the DLL project type but by using
the normal cross platform GUI type and then stripping off the GUI support.

Now the question is, can I achieve something similar for iOS?
Can I create a dynamic or static library some other iOS programming environment can consume?

I just found this help topic:
https://docwiki.embarcadero.com/RADStudio/Sydney/en/API_(*.bpl,_*.dylib,_*.so)

Would that be a way? (I haven't developed any packages yet and I would only want to export procedural stuff)

While Marco's blog post is nicely written it's not excactly what I'd need. Threading is not really new to me,
but I would have the need to wait in there or so. But the Kastri Timer is something I really should look at. Thanks
for bringing that one up!

Thanks for these links. The first one I know and already tried, but it crashes as well, but I need to try to understand their soruce better.
I had thought to give TTimer a 2nd try as that one might be easier to understand. The 2nd link is really new to me.