Re: [Lazarus] It is a beautiful day...
thank you. Michael Van Canneyt via lazarus wrote: Hello, For those of you that don't follow the SVN logs closely: The IDE now has proper support for Project groups. Project groups already existed for some time, but were crippled. With 2 additions they are now actually very useful: - You can let Ctrl-F9 compile the current target in a project group, and that includes for instance a package ! (you can set this in Tools - Options - Project groups) - "Find in files" now has the option 'Search in project group' They now offer all functionality as in Delphi. In difference with the latter, their use is entirely optional... My heartfelt thanks to Mattias for completing the 'Project group' functionality ! Michael. -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] is there a free Grid component better than the default TStringGrid?
John Landmesser via lazarus wrote: See attached demo that works without installing TSortGrid. I opened your zip and Lazarus complained that Laz_SortGrid is missing. After I used Online Package Manager ot install SortGrid, it complained the Sortgrid.pas file is missing Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] is there a free Grid component better than the default TStringGrid?
I am hoping one that supports different column types editing without much coding on my side. thanks in advance. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Lazarus Release 2.0.2
Mattias Gaertner via lazarus wrote: The Lazarus team is glad to announce the release of Lazarus 2.0.2. This release was built with FPC 3.0.4. The previous release Lazarus 2.0.0 was built with FPC 3.0.4 as well. Here is the list of changes for Lazarus and Free Pascal: http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes http://wiki.lazarus.freepascal.org/User_Changes_3.0.4 Here is the list of fixes for Lazarus 2.0.x: http://wiki.freepascal.org/Lazarus_2.0_fixes_branch The release is available for download on SourceForge: http://sourceforge.net/projects/lazarus/files/ Choose your CPU, OS, distro and then the "Lazarus 2.0.2" directory. Checksums for the SourceForge files: http://www.lazarus-ide.org/index.php?page=checksums#2_0_2 Minimum requirements: Windows: 2k, XP, Vista, 7, 8, 8.1 and 10, 32 or 64bit. FreeBSD/Linux: gtk 2.8 for gtk2, qt4.5 for qt, qt5.6 for qt5, 32 or 64bit. Mac OS X: 10.5 to 10.12; Carbon (32bit), Cocoa (64bit, beta), qt and qt5 (32 or 64bit). The svn tag is http://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_2 For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/ and later at (after some time for synchronization) http://mirrors.iwi.me/lazarus/ Mattias -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Lazarus Release 2.0.2
Mattias Gaertner via lazarus wrote: The Lazarus team is glad to announce the release of Lazarus 2.0.2. This release was built with FPC 3.0.4. The previous release Lazarus 2.0.0 was built with FPC 3.0.4 as well. Thank you so much for your contribution. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] How to increase the font size of the content of Project Inspector
Anthony Walter via lazarus wrote: Try doing this: https://cache.getlazarus.org/videos/font-size.mp4 It is strange that on my Lazarus 2.0 Win64, the search on "project" does not show Project Inspector like your video in Ubuntu Maybe the App.Explore works differently in win 64 Lazarus. :-( Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Lazarus 2.0 for win 64, on update packages->rebuild failed
I got the many of following errors. In the end, I had to restart Lazarus and ran it as Administrator to solve it. Maybe the lazarus installer can be modified to avoid these in the future. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] using TFPHTTPClient
Maybe first of all, you use the dll "dependancy walker" find out which ssl dll your exe is using and then right click at the dll file to find out the version number of that dll. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Windows startup infinite loop
Henry Vermaak via lazarus wrote: We're having a strange problem here, an infinite loop happens on a customer's machine just after the main form is created. It doesn't happen when the program is run inside a debugger and it only happens on the customer's machine(s), so it's probably related to their Windows configuration. The infinite loop is not in our code (probably happens with HandleNeeded() is called for the main form). When I attach gdb manually when the program is run outside the debugger I can get a stack trace that shows the loop: Does it happen on all windows versions i.e. windows 10, windows 7 etc? I myself experience different behaviour in setting a control's parent under windows 10 and windows 7. In Windows 10, it takes 10 seconds to create children controls within a TFrame's constructor if its parent is already set. No problem in windows 7. Eventually, I only create the children controls before setting the TFrame's parent. If your problem only appear in windows 10, maybe the parent property is where you should look at. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] How to increase the font size of the content of Project Inspector
Anthony Walter via lazarus wrote: Try doing this: https://cache.getlazarus.org/videos/font-size.mp4 great! But is "Application Explorer" only available in Lazarus 2.1? Or is it an package I can install on my current Lazarus 1.9. Where can I get it? Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Trying FPDebug
Joost van der Sluis via lazarus wrote: Op 22-11-18 om 11:00 schreef Santiago A. via lazarus: I would like to fiddle a little with FPdebug, but I'm a little confused. I have lazarus 1.8.4 on window 7 32 bits I have installed the next packages FpDebug 0.0 lazdebuggerfp - Once you have installed lazdebuggerfp you have to go to the IDE-options. (not the package or project options, but the IDE-options) - Then select 'Debugger' on the left - Select 'FpDebug internal Dwarf-debugger (beta)' on the right I downloaded Lazarus 2.1 with FPC 3.0.4 win 64 bit. When I tried to debug with fpdebug, it asked me Which one should I choose? Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] How to increase the font size of the content of Project Inspector
I am getting old and my eyes need to use bigger fonts. I cannot find the font size option of Project Inspector anywhere in Lazarus. Please help. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Trying FPDebug
Martin Frb via lazarus wrote: On 01/01/2019 11:08, Dennis via lazarus wrote: I am using Lazarus 1.9.0, FPC 3.1.1 You need either 2.1 or fixes 2.0 It works for me. I do not remember that it did not add it... but I know it did not ignore the ones that had been added. revision 59655 Anyway it works in latest trunk. It is fine if it has been fixed. By the way, I want to express my gratitude toward fpDebug. It is so much faster than GDB and the inline variable inspection seems to work better as well. Good jobs guys. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Trying FPDebug
I am using Lazarus 1.9.0, FPC 3.1.1 I am testing fpDebug. When there an exception is raised during debug, the following dialog popped up. I tried to click the "Ignore this exception type" then then click 'continue' but the debugger does not add the exception to the Language Exception list, so it keeps stopping at this exception type. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] In windows 10 (64bit) Assigning TFrame.parent to a TForm took 10 more seconds than Windows 7 (64 bit)
I am using FPC 3.1.1 + Lazarus 1.9.0 running on windows 10 (64 bit) to generate windows exe of 64 bit. I logged the timestamps before and after parent assignment in my constructor TMyFrame.CreateWith(aForm : TForm); MyFrame.Parent := aForm (where aForm is the main application window). .. In windows 10 (64 bit) 18-12-19 00:06:10.154 Before Set parent( old parent = nil ) 18-12-19 00:06:23.983 After Set parent it took 13.9 seconds In windows 7 (64 bit) 18-12-19 00:07:45.916 Before Set parent( old parent = nil ) 18-12-19 00:07:48.939 After Set parent it only took 3 seconds. what could possibly be the cause of the extra 10 seconds in windows 10 ? The hardware is same. In fact, the windows 7 (64 bit) is a virtualbox running on the windows 10, so it should be slower. Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] what can we do to get a better debugger
Martok via lazarus wrote: Am 20.11.2018 um 11:37 schrieb Dennis via lazarus: FPC and Lazarus are great but the GDB is inadequate. Many times in my development, GDB failed or crashed, especially when I am debugging multi thread programs. Shall we start a fund raising event to raise fund for a new and better debugger for FPC + Lazarus? (provided there are talents out there who would do implement it). So much this. GDB needs to die in a fire. (nb: make sure to enable "Reset debugger after every run". That at least works around the absurd amount of memory leaks, and helps with lost breakpoints.) I cannot find this "Reset debugger after every run" option in the Lazarus options. Is it set by a command switch? How to set it? Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] what can we do to get a better debugger
FPC and Lazarus are great but the GDB is inadequate. Many times in my development, GDB failed or crashed, especially when I am debugging multi thread programs. Shall we start a fund raising event to raise fund for a new and better debugger for FPC + Lazarus? (provided there are talents out there who would do implement it). Dennis -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] derived forms and frames
Franz Müller via Lazarus wrote: Hello everybody! I have been developing programs in Delphi for many years (and even before in turbo Pascal). I would like to switch all my programming from Delphi to Lazarus / Free Pascal. Now I have encountered a serious issue that I don't know how to deal with. I have built a complex framework that I use in my programs. This frameworks includes form templates and frame templates from which I derive most of the forms of a project. In order to be able to derive a new form from a form tempate easily with the means of the lazarus IDE, the form template must be part of the project - I don't see another way to have a form shown in the menu "file - new". I might not understand your question correctly. Please ignore me if I am mistaken. When I have customized Frame in the project, next time, I click File-New , under the "inherited item", there are a list of 'inherited project components' (those marked in yellow in this picture). Are those what you need? Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] How do I export Lazarus IDE Options to a file to be used by another Lazarus
I have an old Lazarus with some changed settings in the Lazarus IDE options (e.g. keyboard shortcut and editor coloring). I have installed a new a Lazarus and would like to copy all those settings from the old Lazarus. How can I do that? Thanks in advance. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] when a form is shown modal, it blocked the timer from firing
Mattias Gaertner via Lazarus wrote: On Tue, 5 Jun 2018 11:37:27 +0800 Dennis via Lazarus wrote: I noticed when I aForm.showModal, the timer event seem to stop firing. Here it fires. What platform? Can you create a small example? Mattias My platform is Windows 7 64 bit. I will create a sample later. Thanks. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] when a form is shown modal, it blocked the timer from firing
I noticed when I aForm.showModal, the timer event seem to stop firing. Is there anyway I can keep the timer event firing even when I show modal a form? I noticed that if I Application.MessgeBox, it does not block the timer event but that message box behaves just like a showmodal form. Why is there a difference? Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] What is the hot key to jump to the unit's implementation uses clause
From time to time, I need to add an unit to the uses clause of the implement section of the unit. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Lazarus Release 1.8.2
Mattias Gaertner via Lazarus wrote: The Lazarus team is glad to announce the release of Lazarus 1.8.2. This is a bugfix release. Thanks so much. I have been waiting for this upgrade. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Redundant assigned(X) and (X is Txxx) in Laz. sources
Mattias Gaertner via Lazarus wrote: On Fri, 12 Jan 2018 21:44:47 +0200 Juha Manninen via Lazarus wrote: On Fri, Jan 12, 2018 at 8:38 PM, Vojtěch Čihák via Lazarus wrote: I wrote a small routine to search Lazarus sources and it found about 60 places similar to this (taborderdlg.pas, line 398): if Assigned(LookupRoot) and (LookupRoot is TWinControl) then begin Should I make a patch for all occurences? Yes, I think the patch would be applied. IIRC "is" was not allowed with Nil references in old FPC versions but it was a long time ago. No, "is" was always checking for nil. Maybe some people are confused by "as", which does not check for nil. Mattias I am now confused, so in FPC, it is safe to just use: if LookupRoot is TWinControl instead of if assigned(LookupRoot) and (LookupRoot is TWinControl) then is it safe to with LookupRoot as TWinControl do begin end; or should I always if assigned(LookupRoot) then with LookupRoot as TWinControl do begin end; Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Any tips to speed up Lazarus->GDB debugger?
I am using Lazarus 1.8 Win64 , FPC 3.0.4. As with older versions, debugger is very slow (compared to Delphi). Is there any tricks I can use to speed up the debugger e.g. turn off debug info of all lazarus units/object files? I remember in Delphi 5, they had an option of whether to use Debug dcu (of the main VCL units/objects files). Is there a similar switch I can use to disable debugger in all, except my own source code so as to speed up the debugger? Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Win64 bit "Can not load SQLite client library "sqlite3.dll"
I was upgrading my FPC/Lazarus program from Win32 to Win64 bit. It complied ok but when run, the debugger raised an exceptoin: "Can not load SQLite client library "sqlite3.dll" At first, I though it is because the existing sqlite3.dll is win32 format so I went to https://sqlite.org/download.html to download https://sqlite.org/2017/sqlite-dll-win64-x64-321.zip and replace the old sqlite3.dll with the win64 bite version. However, now it does not an exception but just quietly quit without doing anything. I think I might need another file called libmysql.dll but that is not available from https://sqlite.org/ I googled for it and found that an unknown site called www.dlldownloader.com has it but I am afraid to use it fearing it might be a virus infected file. Does anyone know whether I need a 64bit version of libmysql.dll, if yes, where can I get it safely? Thanks, Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Who is using Object Pascal in production?
Marcos Douglas B. Santos via Lazarus wrote: I would like to propose a discussion about "What is the relevance of Object Pascal nowadays". I don't want waste your time. I just want to know if we are growing and being more relevant or not. I use FPC/Lazarus to write a program trading software to trade futures/options. I chose it because I need it to run on windows and (maybe in future) Linux and Mac OS. Could not use Java,C# because garbage collection and JIT compiler might cause the program to freeze in the middle of critical trading, which is utterly unacceptable for trading. FPC is also clean and easy to maintain and can actually do anything. I might lack some new syntax to speed up parallel programming or functional programming but those could still be achieved with a bit work. I don't want to invest in a new language just for a few new features but risk making some programming errors since I don't fully understand the language. Also, new languages come and gone so fast. I remember Flash's language was hot some years ago but now discarded. Also FPC's compile time is short compared to many other languages. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] bluetoothlaz package cannot detect Bluetooth LE (version > 4.0) devices on raspberry pi
I am using Raspberry Pi 3 (with wifi+bluetooth).
When using the command tool, bluetoothctl, it can detect old and new
bluetooth devices (version > 4.0).
However, using the bluetoothlaz inside my lazarus app, it can only
detect old bluetooth devices (not the BLE new devices).
I am guessing the bluetoothctl uses the new version and features in
bluez (ver 5.41) but bluetoothlaz uses the
{$linklib bluetooth}
which probably is the file
/usr/lib/arm-linux-gnueabihf/libbluetooth.so.3
which is a symbolic link to
/usr/lib/arm-linux-gnueabihf/libbluetooth.so.3.18.13
which might probably be compiled with old versions of bluez (or turn off
the BLE feature).
Do you think my guess is correct?
If yes, can anyone point me to how to update the libbluetooth.so ?
Should I compile a new .so? How (I am bad in linux).
Thanks a lot in advance.
Dennis
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[Lazarus] GUI multithreaded Win32 program sometimes freeze when quitting
I have an win32 multithreaded program written in lazarus 1.7, FPC 3.1.1 From time to time, when it quits, it will freezes and from the task manager, the program will occupies the entire CPU core. I noticed that it will happen more often if: 1) constructor TMyComponent.Create(TheOwner : TComponent); begin self.some_component := TSomeComponent.Create(TheOwner); end; instead of constructor TMyComponent.Create(TheOwner : TComponent); begin self.some_component := TSomeComponent.Create(self); end; 2) if the program executes some methods of a nil object 3) if I don't do a build all when some common units are changed by another project. Since this freezing behaviour does not happen during debugging, I have spent months trying to fix it but failed. Any suggestions are welcome. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] ActiveX, TOLEControl
LacaK via Lazarus wrote:
Hi *,
I need help with OCX component (not visual I guess), which I need
use in Lazarus application (to control another application, which
supplies this OCX control).
I have imported type library using importtl.exe (new unit was
created successfully)
Then in program I have created instance:
v := CreateOleObject('SCAPS.ScSamlightClientCtrl');
or
intf := CreateComObject(CLASS_ScSamlightClientCtrl) as
_DSamlight_client_ctrl_ocx;
What is the type of your V or intf variable?
V: OLEVariant;
intf: _DSamlight_client_ctrl_ocx;
I am wild guessing maybe they are not proper referenced type so the
object is created and then immediately freed.
There is something strange behind scene. I have tried various methods:
I remember in Delphi, I sometimes have to call CoInitialize and
CoUninitialize.
Not sure if FPC has to do the same.
Have you tried that?
Dennis
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Re: [Lazarus] ActiveX, TOLEControl
LacaK via Lazarus wrote:
Hi *,
I need help with OCX component (not visual I guess), which I need use
in Lazarus application (to control another application, which supplies
this OCX control).
I have imported type library using importtl.exe (new unit was created
successfully)
Then in program I have created instance:
v := CreateOleObject('SCAPS.ScSamlightClientCtrl');
or
intf := CreateComObject(CLASS_ScSamlightClientCtrl) as
_DSamlight_client_ctrl_ocx;
What is the type of your V or intf variable?
I am wild guessing maybe they are not proper referenced type so the
object is created and then immediately freed.
I would try
v : OLEVariant;
or V : _DSamlight_client_ctrl_ocx;
Dennis
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Re: [Lazarus] Windows 10 force any non-white background color to White
Werner Pamler via Lazarus wrote: Am 15.10.2016 um 12:04 schrieb Dennis via Lazarus: Attached is a simple test project. Within the zip are 2 screen capture of the same program running in win 7 64 bit and Win 10 64 bit. The project was created with Lazarus 1.7; fpc 3.1.1 SVN 52643. For me, the frame is white in both Win7 and Win10. Did you deactivate themes in Win7? Your screenshot looks like this. This would switch to the old Win95 style, and give you back control over the color of many controls. In Lazarus, you can turn theme support off by unchecking "Use manifest file to enable themes" in the Project Options. This works also in Win10 - see attached screenshot: Yes, I disabled themes in win 7 (and forgot about it). Thank you so much. It worked after unchecking the "Use manifest file to enable themes". It would be even better if the options can be changed in runtime so that users can decide whether to enable themes. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Windows 10 force any non-white background color to White
I have a program written in lazarus running normally in windows 7. When run in windows 10, the green color of the Frame/Form is changed by Windows 10 to white. Now my customer is complaining the bright white is hurting his eyes. Can anyone help? I googled and the only articles is about changing the title bar color, not the form's color. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Anyone has experience controlling Excel from FPC/delphi via OLE Automation?
Werner Pamler via Lazarus wrote: I am having problem using the Type Library generated. Don't know how to use it. I tried to 'learn' from old Delphi 5 source code (the only version of Delphi I have) that worked with Excel 2000 but found that the type library are so different from the one generated by FPC. I try to avoid that OLE stuff as much as possible - too much pain... What is the reason why you want to control Excel? Maybe you can achieve the same in a different way. If it's only reading or writing files you should have a look a fpspreadsheet which covers - I'd say - 90% of what is needed (this is not what Excel offers - Excel has always offered more features than were needed). I hate to use OLE as well but my customer needs to write his own Excel spreadsheet formula and VBA routines etc and feed the results every 5 minutes into my program and my program will execute some tasks accordingly and write back the statuses to the Excel spreadsheet. I tried to persuade him to learn pascal or a formal programming language but he refused. By the way, I want to complain about OLE Automation. It must run in the main thread. If I run it in an non-main thread even with locking routine (co ) , it still crashes. I guess some deep down routines in OLE just forget to make as thread safe. If you insist on Automation you should look at the wiki articles http://wiki.lazarus.freepascal.org/Office_Automation and http://wiki.lazarus.freepascal.org/ExcelAutomation/de - the latter is in German, though. I tried fpspreadsheet but it does not support DDE which my customer needs. Also, it does not support writing VBA. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Anyone has experience controlling Excel from FPC/delphi via OLE Automation?
I am having problem using the Type Library generated. Don't know how to use it. I tried to 'learn' from old Delphi 5 source code (the only version of Delphi I have) that worked with Excel 2000 but found that the type library are so different from the one generated by FPC. Dennis -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
