Re: [Lazarus] Auto scrollbar in forms, has the logic changed?
En/na Mattias Gaertner ha escrit: On Thu, 28 Aug 2008 20:33:44 +0200 (CEST) Luca Olivetti [EMAIL PROTECTED] wrote: With a recent svn (from last week) most of my forms acquired unwanted scrollbars. I corrected the problem by making them a couple of pixels bigger (though that made the contained components slightly off-center), but what was changed to cause it? FPC, Lazarus version? OS? Do you know the lazarus revision of the change? The current one is 16233 with fpc 2.2.2, the previous was a snapshot of svn 15358 and fpc 2.2.3 (however close to the release of 2.2.2, so it should be practically identical to 2.2.2). Both on win32. I don't know which release changed it. Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 Fax +34 93 5883007 ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Auto scrollbar in forms, has the logic changed?
En/na Vincent Snijders ha escrit: Luca Olivetti schreef: With a recent svn (from last week) most of my forms acquired unwanted scrollbars. I corrected the problem by making them a couple of pixels bigger (though that made the contained components slightly off-center), but what was changed to cause it? Maybe because the default for the TForm.AutoScroll property changed from false to true. Probably, however in a test form with a panel I get the scrollbar even if I set it to false (and both VertScrollBar.visible and HorzScrollBar.visible are false), both at design time and at runtime. Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 Fax +34 93 5883007 ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Word of warning when sharing code between Delphi and FPC
Hi Everybody,
I have been battling with some code in tiOPF that causes problems when
compiled with Delphi 2007, but not with Delphi 7 and FPC.
After some head scratching, we found the problem.
I use {$IFDEF DEBUG} quite often in my code, to hide things like
writeln() statemens. I then have a commented DEBUG define at the top
of the unit, so I can enable it per unit when required. That's just
how I work... ;-)
Anyway in Delphi 2007 there are two compilable states, Release and
Debug, with one of those terms automatically added to the options at
compile time. Debug mode is the default, which means the DEBUG define
is ALWAYS defined - and what caused the problem! writeln() statements
fail in a Windows GUI application because StdOut is not available.
Just thought I might share this experience with you guys - to minimize
future head scratching. ;-)
Regards,
- Graeme -
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Re: [Lazarus] Auto scrollbar in forms, has the logic changed?
En/na Luca Olivetti ha escrit: En/na Vincent Snijders ha escrit: Luca Olivetti schreef: With a recent svn (from last week) most of my forms acquired unwanted scrollbars. I corrected the problem by making them a couple of pixels bigger (though that made the contained components slightly off-center), but what was changed to cause it? Maybe because the default for the TForm.AutoScroll property changed from false to true. Probably, however in a test form with a panel I get the scrollbar even if I set it to false (and both VertScrollBar.visible and HorzScrollBar.visible are false), both at design time and at runtime. Here's an interesting detail: once AutoScroll has been set to true, there's no turning back, even if you set it to false you get the scrollbars. I try and it happened also in the previous version, however since the default was false it didn't trigger this problem. Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 Fax +34 93 5883007 ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Word of warning when sharing code between Delphi and FPC
Zitat von Graeme Geldenhuys [EMAIL PROTECTED]:
Hi Everybody,
I have been battling with some code in tiOPF that causes problems when
compiled with Delphi 2007, but not with Delphi 7 and FPC.
After some head scratching, we found the problem.
I use {$IFDEF DEBUG} quite often in my code, to hide things like
writeln() statemens. I then have a commented DEBUG define at the top
of the unit, so I can enable it per unit when required. That's just
how I work... ;-)
Anyway in Delphi 2007 there are two compilable states, Release and
Debug, with one of those terms automatically added to the options at
compile time. Debug mode is the default, which means the DEBUG define
is ALWAYS defined - and what caused the problem! writeln() statements
fail in a Windows GUI application because StdOut is not available.
Just thought I might share this experience with you guys - to minimize
future head scratching. ;-)
Will FPC do the same in Delphi mode?
Mattias
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[Lazarus] Mantis question
Hi, I just saw Mantis notice in my inbox - http://bugs.freepascal.org/view.php?id=11933 2008-08-28 18:44 Mattias GaertnerWidgetsetGTK, GTK 2, Win32, WinCE, Carbon, QT, fpGUI = - I've seen this before. The bug report doesn't relate to a specific widget set. I created that bug report and I specifically tried to deselect all widgetsets (using Firefox browser) and I couldn't. When I create a new bug report, GTK is by default selected (which I think is wrong) and I can't deselect it. So I then went to the next extreme and selected all widgetsets. @Mattias How did you deselect all widgetsets? Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Auto scrollbar in forms, has the logic changed?
Zitat von Luca Olivetti [EMAIL PROTECTED]: En/na Mattias Gaertner ha escrit: On Thu, 28 Aug 2008 20:33:44 +0200 (CEST) Luca Olivetti [EMAIL PROTECTED] wrote: With a recent svn (from last week) most of my forms acquired unwanted scrollbars. I corrected the problem by making them a couple of pixels bigger (though that made the contained components slightly off-center), but what was changed to cause it? FPC, Lazarus version? OS? Do you know the lazarus revision of the change? The current one is 16233 with fpc 2.2.2, the previous was a snapshot of svn 15358 and fpc 2.2.3 (however close to the release of 2.2.2, so it should be practically identical to 2.2.2). Both on win32. I don't know which release changed it. Please create a bug report with an example. It would help if you could determine the svn revision of the regression. Find binary search you could find out easily. Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Feature Request with code tools
Hi everyone, I now spent a lot of time customizing my spaces after and before (on Environment - Code Tools Options - Spaces), just the way I like it. Now I want a feature to Select a piece of code, and then Apply the current *code tool options *on the selected code. Because all my old code doesn't look as neat. Obviously if you are working on SVN, and your options differ from other developers, you shouldn't be applying it to all the code... Does this sound like a not so hard to implement feature request? I am guessing that the code used to alter the example source code in the options form should be able to be applied on the selected code in the implementation of the feature. But I have recently tried to dig around in the source editor, and the implementation is quite above my programming skills. Regards, -Reenen ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Word of warning when sharing code between Delphi and FPC
On Fri, 29 Aug 2008, Mattias Gärtner wrote:
Zitat von Graeme Geldenhuys [EMAIL PROTECTED]:
Hi Everybody,
I have been battling with some code in tiOPF that causes problems when
compiled with Delphi 2007, but not with Delphi 7 and FPC.
After some head scratching, we found the problem.
I use {$IFDEF DEBUG} quite often in my code, to hide things like
writeln() statemens. I then have a commented DEBUG define at the top
of the unit, so I can enable it per unit when required. That's just
how I work... ;-)
Anyway in Delphi 2007 there are two compilable states, Release and
Debug, with one of those terms automatically added to the options at
compile time. Debug mode is the default, which means the DEBUG define
is ALWAYS defined - and what caused the problem! writeln() statements
fail in a Windows GUI application because StdOut is not available.
Just thought I might share this experience with you guys - to minimize
future head scratching. ;-)
Will FPC do the same in Delphi mode?
No. It's an IDE feature. Something like 'named compiler options'.
The Delphi compiler by itself doesn't do anything. It just gets the -DDebug
and whatever flags from the IDE.
Michael.___
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[Lazarus] Seeking to resolve LCL in DLL problems
Hi Im looking at trying to resolve the issue of forms not working properly in DLLs, and thought canvassing opinions from those more intimately aquainted with the source might be beneficial. I know its not slated to be recolved until post v1.0, but I cant wait that long! What Im currently looking at is using a mechanism whereby the host application maintains a list of additional objects (whether applications or forms) to its own, and in the message-loop passes the messages to those first, before trying to process them itself. This is similar-ish to how Delphi handles some of it (a call to SetHandle adds a ref to a process list which is checked in the message-loop), but of course the abstraction layers are different here, so something similar but different is required. My current thinking is that when an app wants to use a form in a library, the process should be. (i) Library is loaded, either statically or dynamically (ii) DLL has an exported function SetHostApplication(HostApp:TApplication):TApplication; before the host app can use a form, it must call something like DLLApp:=SetHostApplication(Application); and inside the dll the application object passed should be stored (in a global or whatever is appropriate), and its own Application object should be returned. The host and the dll now both know about each other. (iii) After calling SetHostApplication, the received DLLApp is registered into an internal list in TApplication - lets call it fChildApps - using a procedure RegisterChildApp(DLLApp);... (iv) In the Hosts message-loop it iterates fChildApps calling a procedure to attempt to process the current message [if its keyboard or mouse related]. If it is handled, the host proceeds to the next message, if not it handles it itself. At the end of the loop, a call should be made to each of the fChildApps.ProcessMessages which calls the relevant Widgetset.AppProcessMessages. (v) When a dll is done, if dynamically unloaded, a call should be made to UnRegisterChildApp. Hmmm - looks complicated! What Im currently wrestlting with is where the message handling should take place. Using the new PrcoessAsyncCallQueue is probably not the place to do it, since the mechanism is different. Ideally it would be nice to wrap stuff up on a high level, but pragmatically thats not going to happen, since each OS handles stuff differently, so each widgetsets AppProcessMessages is the place to implement the details of it. It may even be worth having an AppProcessSingleMessage.. OK, Im starting to ramble, so back to the point. Essentially Im propsoing a system of callbacks, where a dll is registered with the host, and the host feeds messages back as appropriate. It will need to be implemented at both TApplication and TWidgetSet level, and do it gracefully. Also it will require a clear head on the part of end developers, but if the process can be stripped back to Host calls a single procedure to register/unregister a dll, and the dll writer accepts responsibility to export a function (or maybe two) then it could probably be streamlined quite well. Caveats will need to be taken care of, like an application not being able to register itself in its callback/child list. Messages should probably passed TApplication to TApplication, so that each message can be handled by the lower level widgetsets correctly (it could well be that a GTK application could load a dll using QT, etc). This will add function calling overheads so care will be needed not to kill performance... It could be that TApplications are the wrong thing to be holding, and that just the TForms are what should be registered, but the danger here is of forms being freed without the DLL developer remembering to UnRegister the form, so doing it at the TApplication level should take care of that. When implemented, a new item could then be added to the repository for Library with Forms, which has the correct exports already in place, reducing the developer error.. Right - who thinks what? :-) Duncan Parsons ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Word of warning when sharing code between Delphi and FPC
On Fri, Aug 29, 2008 at 9:27 AM, Mattias Gärtner [EMAIL PROTECTED] wrote: Will FPC do the same in Delphi mode? It's nothing todo with the compiler, it's the IDE that injects '-dDebug' when the project is compiled in Debug mode. I would guess (though not tested), that '-dRelease' is injected when Release mode is used in the IDE. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Feature Request with code tools
2008/8/29 Reenen Laurie [EMAIL PROTECTED]: Hi everyone, I now spent a lot of time customizing my spaces after and before (on Environment - Code Tools Options - Spaces), just the way I like it. I've done the same, but found a easier solution in the end Now I want a feature to Select a piece of code, and then Apply the current code tool options on the selected code. Because all my old code doesn't look as neat. I've asked for this as well, but I think something like this will only appear once the Jedi Code Formatter is integrated into the IDE. BTW: That is my 'easier' solution. I setup the IDE to format the code as close as possible to what I like - it doesn't have to be perfect. I then routinely run Jedi Code Formatter (JCF) over my units to fix up any formatting. So time back, I went step-by-step through all the JCF options (there are plenty) to create a perfect profile for my code. JCF is pretty awesome, and works perfectly under Linux with WINE, even though it's a Windows application. JCF is available on SourceForge. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Feature Request with code tools
Thanks, that sounds like a great solution! Regards, -Reenen On Fri, Aug 29, 2008 at 10:05 AM, Graeme Geldenhuys [EMAIL PROTECTED] wrote: 2008/8/29 Reenen Laurie [EMAIL PROTECTED]: Hi everyone, I now spent a lot of time customizing my spaces after and before (on Environment - Code Tools Options - Spaces), just the way I like it. I've done the same, but found a easier solution in the end Now I want a feature to Select a piece of code, and then Apply the current code tool options on the selected code. Because all my old code doesn't look as neat. I've asked for this as well, but I think something like this will only appear once the Jedi Code Formatter is integrated into the IDE. BTW: That is my 'easier' solution. I setup the IDE to format the code as close as possible to what I like - it doesn't have to be perfect. I then routinely run Jedi Code Formatter (JCF) over my units to fix up any formatting. So time back, I went step-by-step through all the JCF options (there are plenty) to create a perfect profile for my code. JCF is pretty awesome, and works perfectly under Linux with WINE, even though it's a Windows application. JCF is available on SourceForge. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus -- o__ ,_./ _ (_)_\(_)___ ...speed is good ___ I believe five out of four people have a problem with fractions. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Feature Request with code tools
On Fri, 29 Aug 2008, Graeme Geldenhuys wrote: 2008/8/29 Reenen Laurie [EMAIL PROTECTED]: Hi everyone, I now spent a lot of time customizing my spaces after and before (on Environment - Code Tools Options - Spaces), just the way I like it. I've done the same, but found a easier solution in the end Now I want a feature to Select a piece of code, and then Apply the current code tool options on the selected code. Because all my old code doesn't look as neat. I've asked for this as well, but I think something like this will only appear once the Jedi Code Formatter is integrated into the IDE. BTW: That is my 'easier' solution. I setup the IDE to format the code as close as possible to what I like - it doesn't have to be perfect. I then routinely run Jedi Code Formatter (JCF) over my units to fix up any formatting. So time back, I went step-by-step through all the JCF options (there are plenty) to create a perfect profile for my code. JCF is pretty awesome, and works perfectly under Linux with WINE, even though it's a Windows application. JCF is available on SourceForge. If the source is available, why don't you recompile it for Linux ? Michael. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to create a Wizard (InstallShield type) interface
On Fri, 29 Aug 2008, Graeme Geldenhuys wrote: Hi, May applications, but mostly installations packages like InstallShield use a Wizard style interface. Start application, click Next, Next, Next, Finish. :-) How do you create such a Wizard interface? * Is in a lot of forms, displayed over eachother? * Is it a tab type component, with the tabs set to invisible? * Does it use one Form and a bunch of Frames? * ??? Anybody have some hints on this? How to recreate such an GUI interface. At work, we routinely use a TPageControl with all tabs set to invisible. The TTabsheet pages are filled with TFrames (actually, there is always a TWizardFrame, and all TFrames descend from this) - to ensure the various steps are truly independent. It keeps it RAD, and lets the various tabs be developed independently. TWizardFrame has methods and properties such as 'NextButtonEnabled' 'PreviousButtonEnabled', 'NextButtonCaption' and so in, making the wizard itself pretty generic. Michael. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Auto scrollbar in forms, has the logic changed?
En/na Mattias Gärtner ha escrit: Please create a bug report with an example. http://bugs.freepascal.org/view.php?id=11991 It would help if you could determine the svn revision of the regression. Find binary search you could find out easily. The default of AutoScroll was changed in revision 15375, however, if you see my other follow-up, the problem (changing AutoScroll from true to false has no effect) was present before but it was no apparent since the default was false. Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 Fax +34 93 5883007 ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to create a Wizard (InstallShield type) interface
Am Freitag, 29. August 2008 10:29 schrieb Michael Van Canneyt: On Fri, 29 Aug 2008, Graeme Geldenhuys wrote: Hi, May applications, but mostly installations packages like InstallShield use a Wizard style interface. Start application, click Next, Next, Next, Finish. :-) How do you create such a Wizard interface? * Is in a lot of forms, displayed over eachother? * Is it a tab type component, with the tabs set to invisible? * Does it use one Form and a bunch of Frames? * ??? Anybody have some hints on this? How to recreate such an GUI interface. At work, we routinely use a TPageControl with all tabs set to invisible. The TTabsheet pages are filled with TFrames (actually, there is always a TWizardFrame, and all TFrames descend from this) - to ensure the various steps are truly independent. It keeps it RAD, and lets the various tabs be developed independently. TWizardFrame has methods and properties such as 'NextButtonEnabled' 'PreviousButtonEnabled', 'NextButtonCaption' and so in, making the wizard itself pretty generic. Unfortunately, this does not work with gtk1, at least it didn't a year ago when I ported my wizard app from D7 to lazarus. It was impossible to hide the tabs, and worse: I couldn't find a way to prevent selecting a page by clicking the tabs (i.e. user could circumvent the next button) .. regards Burkhard ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Seeking to resolve LCL in DLL problems
On Fri, Aug 29, 2008 at 08:55:56AM +0100, Duncan Parsons wrote: (please turn off the html stuff) (i)nbsp;nbsp; Library is loaded, either statically or dynamicallybr / (ii)nbsp; DLL has an exported function 'SetHostApplication(HostApp:TApplication):TApplication;' before the host app can use a form, it must call something like DLLApp:=SetHostApplication(Application); and inside the dll the application object passed should be stored (in a global or whatever is appropriate), and its own Application object should be returned. The host and the dll now both know about each other.br / (iii) After calling SetHostApplication, the received DLLApp is registered into an internal list in TApplication - let's call it fChildApps - using a procedure RegisterChildApp(DLLApp);...br / (iv)nbsp; In the Host's message-loop it iterates fChildApps calling a procedure to attempt to process the current message [if it's keyboard or mouse related]. If it is handled, the host proceeds to the next message, if not it handles it itself. At the end of the loop, a call should be made to each of the fChildApps.ProcessMessages which calls the relevant Widgetset.AppProcessMessages.br / (v)nbsp;nbsp; When a dll is done, if dynamically unloaded, a call should be made to UnRegisterChildApp. Hmmm - looks complicated! And that is the easy part. Because what happens if you deallocate an object in the mainprogram that is allocated in the lib using a different memmanager? or if you do if x is ty then when X was allocated in the lib, and ty is from context of the main program. ? See http://wiki.freepascal.org/packages So in short, any interaction that trancends the most simplistic definition of C api is not possible between mainprogram and DLL. Right - who thinks what? :-) That you used packages on Delphi, and never understood what they are about ;-) ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to create a Wizard (InstallShield type) interface
On Windows, I use InnoSetup to create those wizards. And I am very happy with it. I have not used Nullsoft or any other compiler creator, but Inno has a very good balance between power and ease. Regards, -Reenen On Fri, Aug 29, 2008 at 10:29 AM, Michael Van Canneyt [EMAIL PROTECTED] wrote: On Fri, 29 Aug 2008, Graeme Geldenhuys wrote: Hi, May applications, but mostly installations packages like InstallShield use a Wizard style interface. Start application, click Next, Next, Next, Finish. :-) How do you create such a Wizard interface? * Is in a lot of forms, displayed over eachother? * Is it a tab type component, with the tabs set to invisible? * Does it use one Form and a bunch of Frames? * ??? Anybody have some hints on this? How to recreate such an GUI interface. At work, we routinely use a TPageControl with all tabs set to invisible. The TTabsheet pages are filled with TFrames (actually, there is always a TWizardFrame, and all TFrames descend from this) - to ensure the various steps are truly independent. It keeps it RAD, and lets the various tabs be developed independently. TWizardFrame has methods and properties such as 'NextButtonEnabled' 'PreviousButtonEnabled', 'NextButtonCaption' and so in, making the wizard itself pretty generic. Michael. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus -- o__ ,_./ _ (_)_\(_)___ ...speed is good ___ I believe five out of four people have a problem with fractions. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Feature Request with code tools
On Fri, Aug 29, 2008 at 10:30 AM, Michael Van Canneyt [EMAIL PROTECTED] wrote: If the source is available, why don't you recompile it for Linux ? please read the comments in the feature request. http://bugs.freepascal.org/view.php?id=11933 JCF relies on many Jedi Code Library (JCL) features and functions. Jedi Code Formatter now has the correct license to integrate with Lazarus, but JCL doesn't. Plus, I have no idea how compilable Jedi Code Library is with FPC. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to create a Wizard (InstallShield type) interface
On Fri, Aug 29, 2008 at 10:29 AM, Michael Van Canneyt [EMAIL PROTECTED] wrote: Anybody have some hints on this? How to recreate such an GUI interface. At work, we routinely use a TPageControl with all tabs set to invisible. The TTabsheet pages are filled with TFrames (actually, there is always a TWizardFrame, and all TFrames descend from this) - to ensure the various steps are truly independent. I would have thought this to be the easiest solution as well. A tab/page control seems to fit the design. Thanks for the feedback Michael. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Word of warning when sharing code between Delphi and FPC
how about, redirecting writeln's somethere in Delphi Debug mode?
something like that. I'm not sure if it works
initialization
{$ifndef fpc}{$ifdef debug}
AssignFile(output, 'redirstdout.txt'); Rewrite(output);
{$endif}{$endif}
finalization
{$ifndef fpc}{$ifdef debug}
CloseFile(output);
{$endif}{$endif}
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Re: [Lazarus] How to create a Wizard (InstallShield type) interface
2008/8/29 Reenen Laurie [EMAIL PROTECTED]: On Windows, I use InnoSetup to create those wizards. And I am very happy with it. I have not used Nullsoft or any other compiler creator, but Inno has a very good balance between power and ease. :-) I don't want to create a Setup, I want to create the Wizard/Assistant interface in my own applications. Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Word of warning when sharing code between Delphi and FPC
2008/8/29 mitya boyarintsev [EMAIL PROTECTED]:
how about, redirecting writeln's somethere in Delphi Debug mode?
something like that. I'm not sure if it works
After thinking about it for a while it hit me!! The code I'm working
with is from the tiOPF project. It already has a solution via
tiLog('...message goes here...', lsDebug) calls. tiOPF allows tiLog()
calls to output to Console, GUI or File without issues. lsDebug is one
of many log severity levels that can be set. Simply passing in a
different parameter to the program, different output methods can be
used. I can't believe I never thought of using that from the start -
so we learn. :-)
Either way, for those developers not using tiOPF, be warned about the
global Debug define in D2007.
Regards,
- Graeme -
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Re: [Lazarus] Feature Request with code tools
On Fri, Aug 29, 2008 at 11:22 AM, Marco van de Voort [EMAIL PROTECTED] wrote: Start identifying what JCF uses exactly from it, and try to substitute (or wrap) parts of it. Thank is exactly what Paul Ishenin started doing Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Mantis question
Graeme Geldenhuys wrote: Hi, I just saw Mantis notice in my inbox - http://bugs.freepascal.org/view.php?id=11933 2008-08-28 18:44 Mattias GaertnerWidgetsetGTK, GTK 2, Win32, WinCE, Carbon, QT, fpGUI = - I've seen this before. The bug report doesn't relate to a specific widget set. I created that bug report and I specifically tried to deselect all widgetsets (using Firefox browser) and I couldn't. When I create a new bug report, GTK is by default selected (which I think is wrong) and I can't deselect it. So I then went to the next extreme and selected all widgetsets. @Mattias How did you deselect all widgetsets? Ust CTRL+click Marc ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to create a Wizard (InstallShield type) interface
On Fri, 29 Aug 2008, Burkhard Carstens wrote: Am Freitag, 29. August 2008 10:29 schrieb Michael Van Canneyt: On Fri, 29 Aug 2008, Graeme Geldenhuys wrote: Hi, May applications, but mostly installations packages like InstallShield use a Wizard style interface. Start application, click Next, Next, Next, Finish. :-) How do you create such a Wizard interface? * Is in a lot of forms, displayed over eachother? * Is it a tab type component, with the tabs set to invisible? * Does it use one Form and a bunch of Frames? * ??? Anybody have some hints on this? How to recreate such an GUI interface. At work, we routinely use a TPageControl with all tabs set to invisible. The TTabsheet pages are filled with TFrames (actually, there is always a TWizardFrame, and all TFrames descend from this) - to ensure the various steps are truly independent. It keeps it RAD, and lets the various tabs be developed independently. TWizardFrame has methods and properties such as 'NextButtonEnabled' 'PreviousButtonEnabled', 'NextButtonCaption' and so in, making the wizard itself pretty generic. Unfortunately, this does not work with gtk1, at least it didn't a year ago when I ported my wizard app from D7 to lazarus. It was impossible to hide the tabs, and worse: I couldn't find a way to prevent selecting a page by clicking the tabs (i.e. user could circumvent the next button) .. Well, the tabs can be hidden now in GTK 1 ? Michael. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Revision 16278 can not rebuild the IDE
Luiz Americo Pereira Camara schreef: Luiz Americo Pereira Camara wrote: Trying to rebuild the IDE leads to an error Fatal: Config file is a directory. One more info that can help. The config files are stored at a path with accented characters: C:\Documents and Settings\luiz\Configurações locais\Dados de aplicativos\lazarus Fixed in r16295. Mattias, can you review that revision? Vincent ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] IDE doesn't start after build with lazbuild
29.8.2008 14:04 - Mattias Gärtner [EMAIL PROTECTED] MG Zitat von Roland Turcan [EMAIL PROTECTED]: Hello lazarus project! When I build lazarus from actual SVN or older using by lazbuild, then lazarus doesn't start. MG Open a terminal and start it there: MG cd path/to/lazarus MG ./lazarus.app/Contents/MacOS/lazarus MG What does it show? That is the problem, I don't see anything. Computer gets slow and process is loaded. I need to kill it. Of course, I have checked files in lazarus.app and they are the same as in lazarus' root dir. When I try to build it using by make clean all, then IDE starts and I checked if there are any packages which could make a trouble, but there are only default ones. I've tried to delete all ~/.lazarus but no difference. MG Have you updated lazbuild? MG make lazbuilder I did build many times with make clean all and explicitly make lazbuild. I really have big headache from MacOS' version of FPC/Lazarus. I cannot get rid of problems around porting to Mac. Could you tell me, what I have to delete from MacOS 10.5 to clean Lazarus/FPC out of computer completely, no settings, no units, no symlinks, no executable and I will try to install all again. I really think, that I did something wrong and that's the reason from these troubles. AFAYR, I didn't solve my problem with exception in FPC and I tried to send two emails to Florian Kaempfl directly, but I got no answer from him. I wanted to continue with porting to Mac, but... I have tried to get older FPC and older Lazarus (about end of July), but no difference. I am using MacOS X 10.5 PowerPC. MG Mattias Thanks in advance. -- Best regards, TRoland http://www.rotursoft.sk http://exekutor.rotursoft.sk ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Revision 16278 can not rebuild the IDE
Zitat von Vincent Snijders [EMAIL PROTECTED]: Luiz Americo Pereira Camara schreef: Luiz Americo Pereira Camara wrote: Trying to rebuild the IDE leads to an error Fatal: Config file is a directory. One more info that can help. The config files are stored at a path with accented characters: C:\Documents and Settings\luiz\Configurações locais\Dados de aplicativos\lazarus Fixed in r16295. Mattias, can you review that revision? looking good Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi How can we fix this? Joost. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] IDE doesn't start after build with lazbuild
On Fri, 29 Aug 2008 14:24:41 +0200 Roland Turcan [EMAIL PROTECTED] wrote: 29.8.2008 14:04 - Mattias Gärtner [EMAIL PROTECTED] MG Zitat von Roland Turcan [EMAIL PROTECTED]: Hello lazarus project! When I build lazarus from actual SVN or older using by lazbuild, then lazarus doesn't start. MG Open a terminal and start it there: MG cd path/to/lazarus MG ./lazarus.app/Contents/MacOS/lazarus MG What does it show? That is the problem, I don't see anything. Computer gets slow and process is loaded. I need to kill it. Can you start it in gdb and create a backtrace to find out, what takes so long? Of course, I have checked files in lazarus.app and they are the same as in lazarus' root dir. When I try to build it using by make clean all, then IDE starts and I checked if there are any packages which could make a trouble, but there are only default ones. I've tried to delete all ~/.lazarus but no difference. MG Have you updated lazbuild? MG make lazbuilder I did build many times with make clean all and explicitly make lazbuild. It's 'make lazbuilder' not 'make lazbuild'. It gets confused often. I just added an alias, so that 'make lazbuild' now works too. I really have big headache from MacOS' version of FPC/Lazarus. I cannot get rid of problems around porting to Mac. Could you tell me, what I have to delete from MacOS 10.5 to clean Lazarus/FPC out of computer completely, no settings, no units, no symlinks, no executable and I will try to install all again. I really think, that I did something wrong and that's the reason from these troubles. /usr/local/bin/ppc386 /usr/local/bin/fpc ~/.fpc.cfg /etc/fpc.cfg /usr/local/lib/fpc /usr/lib/fpc ~/.lazarus AFAYR, I didn't solve my problem with exception in FPC and I tried to send two emails to Florian Kaempfl directly, but I got no answer from him. I wanted to continue with porting to Mac, but... Better ask on a forum or on a mailing list. Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Need some help with UpdateSQL in TSQLQuery and TMySQL50Connection
On Thu, Aug 28, 2008 at 4:37 PM, Joost van der Sluis [EMAIL PROTECTED] wrote: So now I understand what your problem is: actually it's not a problem with applyUpdates, but you want that it's called 'automagically'. I think you'd better place the ApplyUpdates in the after-scroll event, in that case. That's much easier. But your approach will also work. Actually, I asked more than once (trying to phrase it differently each time) Where does the call to ApplyUpdates need to be? and got similar non-answers each time. But life goes on, and the PostgreSQL components appear to do mostly what I had in mind. If I should ever find time, I might look into why the MySQL components didn't. However, time is at a premium these days, and probably always will be. Once I finish this little side project, I will probably lose all interest in Lazarus/FPC/PostgreSQL/MySQL anyway, and concentrate on my day job as a high-performance graphics tools programmer using C++. The only reason I was ever interested in Lazarus is because Delphi was the fastest, easiest way I knew of to slap a GUI onto a trivial DB program (and the program I was trying to write should have been REALLY trivial), and I didn't have access to a copy of Delphi (too expensive for a one-off side project, anyway). -- Howard Lee Harkness www.celtic-fiddler.com ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
Joost van der Sluis schreef: Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi Somebody reported the same (or similar) issues in the debian bug tracker. Maybe the best solution is not to package these scripts in rpm/debs, so that they don't enter the dangerous wild where people are running scripts with root permissions and add symlinks in the tmp directory. Vincent ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
You should create a temporary name or check and see where the symlink follows before executing/removing it. So if it does not point for the right direction, you just exit with an error. Ido On Fri, Aug 29, 2008 at 5:53 PM, Vincent Snijders [EMAIL PROTECTED] wrote: Joost van der Sluis schreef: Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi Somebody reported the same (or similar) issues in the debian bug tracker. Maybe the best solution is not to package these scripts in rpm/debs, so that they don't enter the dangerous wild where people are running scripts with root permissions and add symlinks in the tmp directory. Vincent ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus -- http://ik.homelinux.org/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
Just some ideas on the topic. IMHO the tmp-dir should have a random, or pseudo-random element to it, and the current script should not (at least not without asking) delete a tmp-dir. A random element (such as the PID ) would solve issues if 2 different users run the script simultaneously (e.g if both install a local copy of lazarus into their home dirs). In terms of security it would make any attack on the tmp dirs harder. This example also shows why existing temp dirs should not be deleted (without asking). They could still be in use. I have not checked the current script (and neither am I an expert on shell scripting), but I assume that the script removes it temp script on exit? And trap could be used to make sure this happens even if aborted? Regards Martin Vincent Snijders wrote: Joost van der Sluis schreef: Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi Somebody reported the same (or similar) issues in the debian bug tracker. Maybe the best solution is not to package these scripts in rpm/debs, so that they don't enter the dangerous wild where people are running scripts with root permissions and add symlinks in the tmp directory. Vincent ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
Op vrijdag 29-08-2008 om 15:53 uur [tijdzone +0200], schreef Mattias Gaertner: On Fri, 29 Aug 2008 14:55:00 +0200 Joost van der Sluis [EMAIL PROTECTED] wrote: Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi How can we fix this? I replaced it with rm -rf $TmpDir Read the link, this was only one example, but there are more. And your solution works for the hack in my example, but I doubt it is entirely safe. Joost. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Security issue (symlink attack) in Lazarus filed on Fedora's bugzilla
On Fri, 29 Aug 2008 18:31:42 +0200 Joost van der Sluis [EMAIL PROTECTED] wrote: Op vrijdag 29-08-2008 om 15:53 uur [tijdzone +0200], schreef Mattias Gaertner: On Fri, 29 Aug 2008 14:55:00 +0200 Joost van der Sluis [EMAIL PROTECTED] wrote: Hi all, As the packager of Lazarus in Fedora, I get notifications if someone files a bug in Fedora's bug-tracker. Now someone added a bug-report with a security issue: https://bugzilla.redhat.com/show_bug.cgi?id=460642 And indeed, if someone add a symlink like 'ln -s /tmp/fpc_patchdir /etc' and thereafter someone with root-permissions runs the check_fpc_dependencies.sh script with th following code in it he won't be happy: 89 TmpDir=/tmp/fpc_patchdir 90 if [ $WithTempDir = yes ]; then 91 if [ -d $TmpDir ]; then 92 rm -rf $TmpDir/* 93 rm -r $TmpDir 94 fi How can we fix this? I replaced it with rm -rf $TmpDir Read the link, this was only one example, but there are more. And your solution works for the hack in my example, but I doubt it is entirely safe. You are right. The script was not intended to run on malicious multi user systems. It was written to create a rpm and to easily debug the rpm building. Using the tmp directory is per se a security risk. It would be better to use the home directory by default. But this does not work on some systems. The best ad hoc solution is already mentioned in the link: don't add the scripts to the rpm. Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Need some help with UpdateSQL in TSQLQuery and TMySQL50Connection
--- El jue 28-ago-08, Howard Lee Harkness [EMAIL PROTECTED] escribió: De:: Howard Lee Harkness [EMAIL PROTECTED] Asunto: Re: [Lazarus] Need some help with UpdateSQL in TSQLQuery and TMySQL50Connection A: General mailing list lazarus@lazarus.freepascal.org Fecha: jueves, 28 agosto, 2008, 3:21 pm After several rounds of non-answers here (seems the developers just assume everybody else should know the internals of everything, which is not realistic), a member of the Lazarus forum posted the answer to this problem. The ApplyUpdates call can be placed in the after event handlers. Fairly simple, and in retrospect, fairly obvious. Knowing that two months ago would have saved me a lot of time. Meanwhile, I switched to PostgreSQL, and the components for that DB don't appear to have the same problem. Two months ago? it means you didn't read it: http://article.gmane.org/gmane.comp.ide.lazarus.general/25599/match=advice+creating+database+aware+application+lazarus Jesus Reyes A. __ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! Regístrate ya - http://correo.yahoo.com.mx/ ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
