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Lajos Juhász

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Everything posted by Lajos Juhász

  1. In the quality portal you get response while they validate your report and try to prove it's how the product works and not a bug. After that unfortunately there is no response at all (not even in which version and time frame when the fix will be shipped). Usually you will get no response about the issue at all. Do I think this is the right way? Of course not. As sometimes it's critical to us to know how to communicate with our clients as we have also to plan and communicate to clients when we can ship the fixed product. For some unknown reason who ever decides the future of the product cuts off the communications with the developers (there was a brief period when even on this forum you was able to get honest answers). Instead of a clear communication we can get only promotion materials how everything is nice and shiny (and that's true when you try hello world applications, but as soon as you try to do something more complication you will discover bugs). For me the latest bad sign is that they abandoned the idea that we should have a roadmap. Now you can only read the future of the products only from your coffee mug and that's not a fun thing to do when my managers asks me what is the next step.
  2. Lajos Juhász

    Comport Serial Port help

    You should also check in ComPort1RxChar how many bytes the comport reads from the buffer.
  3. Lajos Juhász

    Comport Serial Port help

    In your code you never check for length of the buffer. When reading the com port it's not guaranteed that you receive all the data in one read. You've to check whenever you received everything and after that you can try to process it. Edit. In this case most probably the length of the result is less than 21 bytes and result1 will be an empty string. Try: if result1<>'' then A := StrToInt ('$' + Result1) else begin ShowMessage('Result1='''''); end;
  4. Lajos Juhász

    Get memory used by a Memtable record??

    The memory required for the stream doesn't have to be the same as for internal representation for the data. The only way to firure out is to query the memory manager before and after the operation.
  5. Lajos Juhász

    docwiki.embarcadero.com is not working

    16th during the webinar we should all ask the question whenever the future of Delphi includes some kind of online documentation or not. I believe that will be the perfect place to ask!
  6. Lajos Juhász

    DocWiki.Embarcadero.com does Russian Roulette.

    Maybe it's a cloud thing where they don't have direct access. I mean they should have a backup copy of the database and could set up a new server very quickly. Also it's possibly that they have used all the money allocated for hardware and will have to wait for the new business year to allocate money to rebuild the infrastructure.
  7. Lajos Juhász

    DocWiki.Embarcadero.com does Russian Roulette.

    In this case Idera/Embarcadero has no problems. The website used for new customers is working fine. It's just the docwiki that is down that is used only by customers that already paid. Why would they worry? They can get away with no roadmap, no timeframe when the critical errors will be fixed in Delphi. We that already using Delphi should know to work without a proper documentation.
  8. Lajos Juhász

    DocWiki.Embarcadero.com does Russian Roulette.

    There is no need to panic. It's out for about 2 two weeks. There was a recent webinar from Ranorex that modern IT companies now have a monthly schedule for release. So before we all panic we have just to wait another 2 weeks and see whenever that time frame is used in Idera or not.
  9. Lajos Juhász

    Comport Serial Port help

    I am sure it has System.AnsiStrings unit. The easiest way is to use StrToInt('$1289ABEF').
  10. Lajos Juhász

    FB3 - Update SQL

    In that case it's not true anymore check it with: select itemno, count(CustNo) from Vendor where Preferred='Yes' group by itemno having count(CustNo)>1
  11. Lajos Juhász

    FB3 - Update SQL

    The PK for Vendor is ItemNo, Custno you cannot make it a unique value only by joining it with fields itemno and preferred. You could use min, max or avg functions.
  12. Lajos Juhász

    Using memory table or else

    SQL servers. Parametar cannot be used with like or matches.
  13. Lajos Juhász

    Debugging Issues in D11 64Bit with Packages

    I know about problems when trying to debug application built with packages. There are multiple open tickets and now we just have to wait for a solution.
  14. Lajos Juhász

    docwiki.embarcadero.com is not working

    It doesn't working for me. For https://docwiki.embarcadero.com/RADStudio/Alexandria/en/ returns: Sorry! This site is experiencing technical difficulties. Try waiting a few minutes and reloading. (Cannot access the database) Backtrace: #0 /var/www/html/shared/BaseWiki31/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1134): Wikimedia\Rdbms\Database->reportConnectionError('Connection refu...') #1 /var/www/html/shared/BaseWiki31/includes/libs/rdbms/loadbalancer/LoadBalancer.php(749): Wikimedia\Rdbms\LoadBalancer->reportConnectionError() #2 /var/www/html/shared/BaseWiki31/includes/GlobalFunctions.php(2801): Wikimedia\Rdbms\LoadBalancer->getConnection(0, Array, false) #3 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LCStoreDB.php(45): wfGetDB(-1) #4 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LocalisationCache.php(412): LCStoreDB->get('en', 'deps') #5 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LocalisationCache.php(458): LocalisationCache->isExpired('en') #6 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LocalisationCache.php(334): LocalisationCache->initLanguage('en') #7 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LocalisationCache.php(371): LocalisationCache->loadItem('en', 'magicWords') #8 /var/www/html/shared/BaseWiki31/includes/cache/localisation/LocalisationCache.php(292): LocalisationCache->loadSubitem('en', 'magicWords', 'tree') #9 /var/www/html/shared/BaseWiki31/languages/Language.php(3177): LocalisationCache->getSubitem('en', 'magicWords', 'tree') #10 /var/www/html/shared/BaseWiki31/includes/MagicWord.php(352): Language->getMagic(Object(MagicWord)) #11 /var/www/html/shared/BaseWiki31/includes/MagicWord.php(280): MagicWord->load('tree') #12 /var/www/html/shared/BaseWiki31/includes/parser/Parser.php(4848): MagicWord::get('tree') #13 /var/www/html/shared/BaseWiki31/extensions/TreeAndMenu/TreeAndMenu_body.php(24): Parser->setFunctionHook('tree', Array) #14 /var/www/html/shared/BaseWiki31/includes/Setup.php(948): TreeAndMenu->setup() #15 /var/www/html/shared/BaseWiki31/includes/WebStart.php(88): require_once('/var/www/html/s...') #16 /var/www/html/shared/BaseWiki31/index.php(39): require('/var/www/html/s...') #17 {main}
  15. Lajos Juhász

    dzObjectInspectorFix for Delphi 2007

    Must be one of your plugins never noticed that problem.
  16. Lajos Juhász

    Showing a warning form to some users

    Depending on the database you can try to use TFDEventAlerter (the docwiki at embarcadero at the moment I cannot check for supported databases).
  17. Lajos Juhász

    Is a number in a string of numbers??

    Is the list correct in your example the first numbers are delimited with semicolon while the last is with comma. The easiest way to type this for me is: function ListContains(const PList: string; PNumber: integer): boolean; var sl: TStringList; begin sl:=TStringList.Create; try sl.Delimiter:=';'; sl.DelimitedText:=StringReplace(PList, ',', ';', []); result:=sl.IndexOf(IntToStr(PNumber))<>-1; finally sl.Free; end; end;
  18. Lajos Juhász

    Detect when user clicks down on scrollbar button?

    You can handle OnMessage for the Applicaton or simple use the OnScroll event of the component.
  19. Lajos Juhász

    progress bar issue

    There is Form7.pb1.Position (a bad design to call directly from another unit as you cannot be sure that the procedure was called from that object) in the code however that's all we can see (besides the problems that the code full of Application.ProcessMessages also that should be avoided).
  20. Lajos Juhász

    Just sent type OnDataAvailable

    You've to create a protocol eg. a prefix that will say the following x bytes is a string or a binary data so the reciever can convert the received bytes back.
  21. Lajos Juhász

    When will IDE Editor support more fonts?

    Even some Unicode arrow characters are not supported by the IDE :(.
  22. Lajos Juhász

    Grayscaling an image (memory leak)

    It's very simple take a look at TImage.SetBitmap. The TImage object will assign the bitmap to the internal bitmap and will not take the ownership over of the parameter. You've to write: var lbm: TBitmap; begin if OpenDialog1.Execute then begin Image1.Bitmap.LoadFromFile(OpenDialog1.FileName); lbm:=ConvertToGrayscale(image1.Bitmap); try Image2.Bitmap:=lbm; finally lbm.Free; end; end; end;
  23. Lajos Juhász

    How to print Bitmap to bluetooth thermal printer

    Maybe this thread can help (I have no experience with thermal printers).
  24. I've also tested: finalValue:=2*index + ResultIsFive(index); the result 9. I guess this is one of the reasons why you should not write procedures with side effects. It can make a mission impossible to find the them.
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