I have few questions about the Data Export components, (e.g.
TCSVExporter).
I create a database at runtime, then I create queries and I would
like to save the resulting datasets.
Is it possible to save the datasets using as field headers something
different than the field names? Have I to use
Dear Michael,
I entered a bug report (ID 0013837 [Packages] Database). How can I
assign it to you?
Another question related to the exporter, both demoes do not work. I get
these error messages:
C:\Programmi\Lazarus_svn\components\dbexport\demo\gendata.pp(127,32)
Error: Identifier not found
Dear All,
there is a way to copy to clipboard or to save an image from a
TOpenGLControl?
Thanks,
Andrea
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the glscene developers?
Mattias
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Milano Chemometrics and QSAR Research Group
Department of Environmental
Dear all,
I have some problems with sqlite3connection.
I put a sqlite3connection on a form and then double click on
afterconnect event in the object inspector (or beforeconnect or
afterdisconnect etc.), lazarus correctly creates in the editor the
afterconnect procedure and put the cursor in it.
anyone can help me?
Andrea Mauri ha scritto:
Dear all,
I have some problems with sqlite3connection.
I put a sqlite3connection on a form and then double click on
afterconnect event in the object inspector (or beforeconnect or
afterdisconnect etc.), lazarus correctly creates in the editor
Dear Mattias,
thanks, now it works.
May I ask you what was the problem? I would like to contribute as much
as possible in this project, more I understand more I can help.
Thanks,
Andrea
Mattias Gaertner ha scritto:
On Wed, 09 Sep 2009 19:30:49 +0200
Andrea Mauri andrea.mauri...@gmail.com
Dear all,
I use last lazarus svn. When I launch lazarus using startlazarus.exe in
ther splash screen it appears 0.9.27 version in the bottom left while if
I launch lazarus.exe in the splash screen the correct 0.9.29 version is
shown.
andrea
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I rebuilded startlazarus, in the caption of the main form there is the
correct 0.9.29 version.
What do you mean with make starter?
andrea
Paul Ishenin ha scritto:
Andrea Mauri wrote:
I use last lazarus svn. When I launch lazarus using startlazarus.exe
in ther splash screen it appears 0.9.27
Andrea Mauri andrea.mauri...@gmail.com:
Free Pascal Compiler version 2.2.2 [2008/08/03] for i386
Copyright (c) 1993-2008 by Florian Klaempfl
Target OS: Win32 for i386
Compiling startlazarus.lpr
PPU Loading
C:\Programmi\Lazarus_svn\lcl\units\i386-win32\win32\interfaces.ppu
PPU Invalid Version 91
Dear all,
in my application I need to change the cell color of some cells in a DBGrid.
I use the OnDrawColumnCell event. My DBGrid name is dbgLoadings here the
OnDrawColumnCell event:
procedure TfrmPCA.dbgLoadingsDrawColumnCell(Sender: TObject; const Rect:
TRect;
DataCol: Integer; Column:
it works, thanks!
andrea
Luca Olivetti ha scritto:
En/na Andrea Mauri ha escrit:
Dear all,
in my application I need to change the cell color of some cells in a
DBGrid.
I use the OnDrawColumnCell event. My DBGrid name is dbgLoadings here
the OnDrawColumnCell event:
procedure
Dear all,
I am using TAChart and I would like to see the mark of a point when the
point is clicked or the mouse is over it.
Actually I do it using tchart.hint, TChartMouseMove event and
GetNearestPoint function. In this way I show an hint any time the mouse
pass over a point. Is it possible to
Dear all,
I have a question regarding DisableControls and EnableControls
procedures of TDataSet.
Is it correct that if I call 2 times disablecontrols I have to call 2
times enablecontrols in order to enable again the controls associated to
the dataset?
Here an example:
I put a DBGrid
thanks, i used ctrl-click but I didn't know about ctrl-shift-down.
a.
Are you using Lazarus? ctrl-click on TDataset.EnableControls. Then use
ctrl-shift-down and you'll see... ;)
Offcourse, documentation is also usefull. But there is this easy
alternative. (It doesn't work in more difficult
I use trunk version of lazarus so I will check it.
thanks,
andrea
Alexander Klenin ha scritto:
On Mon, Sep 21, 2009 at 23:39, Andrea Mauri andrea.mauri...@gmail.com wrote:
Dear all,
I am using TAChart and I would like to see the mark of a point when the
point is clicked or the mouse is over
and then it immediately disappears.
So how can I draw shapes on a chart? I have to put unitary circle but
also other things, such as rays from the origin of the chart (0, 0) to
all the points in a serie.
Could you help me?
regards,
andrea
Andrea Mauri ha scritto:
I use trunk version of lazarus so I
dear all,
I have a question about BorderSpacing in TAChart.
At design time I can anchor the chart and set the Border (Around) using
the anchors editor. I can see the effect on the form at design time but
if I run the project the effect of the around border disappears (like if
Around border is
wow. fast!
Alexander Klenin ha scritto:
On Tue, Sep 22, 2009 at 23:11, Andrea Mauri andrea.mauri...@gmail.com wrote:
dear all,
I have a question about BorderSpacing in TAChart.
At design time I can anchor the chart and set the Border (Around) using the
anchors editor. I can see the effect
Currently, they are drawn below points with negative Y and above others.
This is intended to reduce clutter, and is absolutely required for
bar series -- but maybe it was not a good idea for line series, I am not sure.
I was misunderstood. With below I intend that marks are drawn back the
I see. This is a borderline case, probably too exotic to be included
in the general component.
Still, if you have inclination to work on a patch, I would suggest to change
TLineSeries.ShowLines property from boolean to enumeration
(slNone, slFromPrevious, slFromOrigin).
I created a patch
Dear all, dear Alexander,
I saw in tachart source code that adding points to a serie they are kept
ordered by X coordinate.
There is any reason for that?
Taken from source:
// We keep data points ordered by X coordinate.
// Note that this leads to O(N^2) time except
// for the case of
dear all,
how can I disable the xp manifest?
I use Lazarus 0.9.29 r23425 FPC 2.4.0 i386-win32-win32/win64.
In Project Options if I uncheck the checkbox that enable the manifest
nothing happens and the manifest is still enabled.
In order to reproduce it open a new project put a button on a form
Hi,
I have some problems in copying/saving charts when the clipped property
of a serie (Marks.Clipped) is set to False.
I am sending 3 mails in order to show you the tchart behaviour. In the
first mail I attached the chart copied without marks, in the second is
the same chart with
the second image
Il 12/01/2010 12.53, Andrea Mauri ha scritto:
Hi,
I have some problems in copying/saving charts when the clipped
property of a serie (Marks.Clipped) is set to False.
I am sending 3 mails in order to show you the tchart behaviour. In the
first mail I attached the chart copied
the third image
Il 12/01/2010 12.55, Andrea Mauri ha scritto:
the second image
Il 12/01/2010 12.53, Andrea Mauri ha scritto:
Hi,
I have some problems in copying/saving charts when the clipped
property of a serie (Marks.Clipped) is set to False.
I am sending 3 mails in order to show you
Found it -- it was a TChart bug after all. Fixed in r23433
Thanks, it works!
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why if I left click on a TChart the series on that TChart are repainted
also if I do not do anything else then click on the chart?
andrea
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Il 15/01/2010 6.28, Alexander Klenin ha scritto:
On Thu, Jan 14, 2010 at 23:32, Andrea Mauriandrea.mauri...@gmail.com wrote:
why if I left click on a TChart the series on that TChart are repainted also
if I do not do anything else then click on the chart?
You can set AllowZoom property to
Il 15/01/2010 14.28, Alexander Klenin ha scritto:
On Fri, Jan 15, 2010 at 19:59, Andrea Mauriandrea.mauri...@gmail.com wrote:
Il 15/01/2010 6.28, Alexander Klenin ha scritto:
why if I left click on a TChart the series on that TChart are repainted also
if I do not do anything else then click
Il 22/01/2010 8.34, Jesus Reyes ha scritto:
Using OnPrepareCanvas you don't have to draw anything, you get the
column:tcolumn which is being painted as an argument and from there you get the
field and can take decisions based on fields value, then you change dbgrid's
canvas properties, for
I was monitoring bug 0013235 related to openglcontrol that was recently
closed. I tested it on Lazarus 0.9.29 r23608 FPC 2.4.0
i386-win32-win32/win64 and the bug is not resolved.
If I run the openglcontrol_demo it works if the xp manifest is disabled
otherwise the demo does not work properly.
TEditButton ? (on misc component palette)
not exactly, it is a TEdit that can include two glyphs/buttons, one on
the right and one on the left, both inside the Tedit.
http://dn.codegear.com/article/images/38757/030E.png
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dear all,
I have some problems reading xml files.
If I read xml files using ReadXMLFile it works only if I use:
1. procedure ReadXMLFile(out ADoc: TXMLDocument; const AFilename:
String); overload;
while if I use
2. procedure ReadXMLFile(out ADoc: TXMLDocument; var f: Text); overload;
the
Please convert the examples to working console programs, and attach them
to a bugreport in Mantis. (and the acetyl* files as well)
ok, but I have to report it as a bug for fpc category FCL?
thanks,
andrea
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Il 15/02/2010 16.31, Andrea Mauri ha scritto:
Please convert the examples to working console programs, and attach them
to a bugreport in Mantis. (and the acetyl* files as well)
I reported it as Bug 0015776 [FPC] FCL
Thanks,
andrea
Hi,
there is a component like a dropdown button? I mean a tbutton like a
ttoolbutton with style = tbsDropDown
Andrea
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dear Alexander,
using the last svn I have problems with reticulemode property.
If I set it to True every time I click on a chart the reticule is drawn
and does not disappear.
To reproduce it just enable reticule mode on a chart with at least one
serie and click on the chart.
Andrea
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Dear all,
I would like to know how can I decide the zorder of the series on a chart.
I have a chart with more than one serie, but I want that some series are
always visible while others are drawn back.
How can I do that?
Andrea
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dear all,
in my application I have some grids (TStringGrid) where the dblclick
should fire some events related to the selected row. I would like that
the dblclick events will be raised only if the dblclick is performed on
non-fixed rows.
How can I do that?
andrea
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Il 02/03/2010 6.45, Alexander Klenin ha scritto:
Use Series.ZPosition property.
ZPosition is not what I'm looking for. Put a chart on a form then add a
TLine serie. If you change the zposition the line is moved. I don't
wanto to move the line I just want to see the line also if there is a
Il 01/03/2010 22.03, Hans-Peter Diettrich ha scritto:
Check the clicked row in your event handler.
If row = 3 and I click on a fixedrow the row property still remains 3.
So how can I check that the dblclick is performed on a fixed row?
My problem is that if the user click on the fixed row the
Il 04/03/2010 1.50, Alexander Klenin ha scritto:
On Tue, Mar 2, 2010 at 19:30, Andrea Mauriandrea.mauri...@gmail.com wrote:
Il 02/03/2010 6.45, Alexander Klenin ha scritto:
Use Series.ZPosition property.
ZPosition is not what I'm looking for. Put a chart on a form then add a
TLine serie.
in the help I found that:
Selected index - number of the row selected for viewing or editing
but in the SetSelectedIndex method the code is related to the columns,
not rows:
procedure TCustomDBGrid.SetSelectedIndex(const AValue: Integer);
begin
Col := FirstGridColumn + AValue;
end;
where
in the last svn (Lazarus 0.9.29 r23841 FPC 2.4.0 i386-win32-win32/win64)
I got the following error during rebuild:
C:\lazarus_svn\components\opengl\glwin32wglcontext.pas(267,3) Error:
Wrong number of parameters specified for call to PrepareCreateWindow
what can I do?
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Il 05/03/2010 13.27, Andrea Mauri ha scritto:
C:\lazarus_svn\components\opengl\glwin32wglcontext.pas(267,3) Error:
Wrong number of parameters specified for call to PrepareCreateWindow
I think is related to revision 23840:
lcl: change use of CreateParams:
- move TForm.PopupParent handling
Il 05/03/2010 13.54, Mattias Gärtner ha scritto:
I don't have windows here at the moment. Can you create a fix?
sorry but I don't know what to do. I don't know why the patch that
introduce the error was submitted and what those function do.
andrea
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Il 05/03/2010 17.42, Paul Ishenin ha scritto:
Please update and retest.
ok it works.
andrea
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I have problems with format function.
If I set:
f:= -0.0002;
and then I do:
Edit1.Text:= FormatFloat('0.000', f);
Edit2.Text:= format('%.0f', [f]);
Edit3.Text:= format('%.3f', [f]);
The results I obtain are:
-0.000
-0
-0.000
While they should be:
0.000
0
0.000
I have to report a bug to
Il 11/03/2010 10.00, Michael Van Canneyt ha scritto:
Yes, although I think there is still a related bug open in FPC/rtl.
Please search first.
I found some bugs related to formatfloat but not this specific bug. I
submitted it as 0015957
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Il 02/03/2010 10.56, Andrea Mauri ha scritto:
I also noticed that the click event is not raised if I click on a fixed
row/column while the dblclick is raised also if performed on a fixed
row/column.
Is it a possibility to introduce a headerdblclick event like the
headerclickevent?
andrea
Il 11/03/2010 12.32, zeljko ha scritto:
no, it's already reported by me
http://bugs.freepascal.org/view.php?id=13722
I already submitted, so the 0015957 and 0015958 bugreports should be
removed.
Andrea
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Il 11/03/2010 20.15, Andrea Mauri ha scritto:
how can I test the fixes to 2.4.0?
I have to dowload the sources of fpc from svn (/branches/fixes_2_4)? Is
it enough to change the fpc sources directory in lazarus options?
maybe these questions are trivial, sorry.
thanks, andrea
Il 11/03/2010 20.15, Andrea Mauri ha scritto:
how can I test the fixes to 2.4.0?
any suggestion on how to check the fixes?
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Il 12/03/2010 23.22, Maxim Ganetsky ha scritto:
Use compiler from this branch:
http://svn.freepascal.org/svn/fpc/branches/fixes_2_4
I supposed it.
I have two questions:
1. once downloaded the fixes, I have to compile it and use it? How can I
do that?
2. Is the fixes branch stable? Can I use
I would like to add help to my application, I checked the wiki and the
example in examples\helphtml (htmlhelp.lpi) but when I run it I got an
error: Unable to find html browser.
Lazarus 0.9.29 r23882 FPC 2.4.0 i386-win32-win32/win64
Hints?
Andrea
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Il 27/04/2010 15.51, Alexander Klenin ha scritto:
Indeed. This is related to the new toolset code.
Please try r25005.
ok, it works. thanks.
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Il 05/05/2010 16.10, Paul Ishenin ha scritto:
Try to compare with any default gtk2 application. If there spinedit
behave the same as in lazarus then it is ok - this is system behavior in
other case this is a bug which needs to be fixed.
I tried, actually I didn't find an application with
Il 05/05/2010 16.40, Graeme Geldenhuys ha scritto:
This does not happen for me. Using r25169 and IDE compiled with GTK2.
It works for me like he described it does under Windows.
I tested it again (lazarus last svn fpc 2.4.0 on ubuntu 10.04), on
TSpinedit I have always IBeam cursor, on win I
I am trying to use ItemEnabled property of CheckListBox and I found some
problems using it.
Put a TCheckListBox on a form and on Create put this code:
procedure TForm1.FormCreate(Sender: TObject);
var
i: integer;
begin
for i:= 0 to 49 do
begin
CheckListBox1.Items.Append(Format('%d
Il 13/05/2010 12.21, Mattias Gaertner ha scritto:
Fixed in svn revision 25352.
checked. thanks.
andrea
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Il 18/05/2010 23.24, Jesus Reyes ha scritto:
not necesary to submit report, fixed in r 25502
tested. ok.
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Il 18/05/2010 22.43, Jesus Reyes ha scritto:
fixed in r25501
tested. ok.
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With the last svn and fpc 2.6.0 I cannot install glscene packages, I got
this error:
C:\lazarus_svn\components\glscene\Source\base\vectorgeometry.pas(3789,32) Error:
Can't determine which overloaded function to call
Andrea Mauri
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Yes, but glscene has not been changed, it worked before. I just updated
lazarus and fpc.
Any hints?
Otherwise I will check with glscene mailing list or similar.
Andrea
Il 07/02/2012 21:15, Felipe Monteiro de Carvalho ha scritto:
Hello,
You should report this in a glscene mailling list, bug
).
I don't know why. I would like to know where/what I have to check in
order to understand this behaviour.
Anyone can help? Any suggestion?
I use:
Lazarus 0.9.31 r37846M FPC 2.6.0 i386-win32-win32/win64
Best regards,
Andrea Mauri
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Il 02/07/2012 15:56, Martin ha scritto:
I don't know anything about the issue itself, but have you tried setting
a watchpoint (context menu in watches list). (Scope = global / Acess write)
Set the watchpoint after TCommonDialog.DoExecute has initialized the
value. The watchpoint should stop
.
Let me know,
Andrea
Il 03/07/2012 10:28, Andrea Mauri ha scritto:
Il 02/07/2012 15:56, Martin ha scritto:
I don't know anything about the issue itself, but have you tried setting
a watchpoint (context menu in watches list). (Scope = global / Acess
write)
Set the watchpoint after
Il 06/07/2012 13:45, Mattias Gaertner ha scritto:
If there is an out of memory exception many things can go wrong.
Make sure the out of memory exception only occurs within your function
and only because you allocated a big chunk of memory.
There must always be enough memory for the error
Il 11/07/2012 11:21, Mattias Gaertner ha scritto:
Can you test if a savedialog can be shown before calling the
function?
Maybe it has nothing to do with this function.
Yes, the savedialog is always shown.
In order to be clearer, the software is this
Dear all,
I have a console application that performs calculations iteratively on
different objects.
I would like to set a time limit for the calculation on a single object.
i.e. calculation starts on object 1, in order to start calculation on
object 2 the calculations on object 1 must be
Il 10/08/2012 14:59, Sven Barth ha scritto:
while not fStopExecution do
begin
CheckSynchronize;
inc(i);
end;
This results in 100 % CPU (in a single CPU system) so not a very good
idea IMHO. (Even the timer thread is crippled by the main thread.)
If you can live with some
Dear all,
in my last lazarus svn version (Lazarus 0.9.31 r29326 FPC 2.4.2
i386-win32-win32/win64) the comment selection features (menu ide --
modify) does not work anymore.
andrea
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Il 02/02/2011 12:15, Alexander Klenin ha scritto:
On Wed, Feb 2, 2011 at 20:53, Andrea Mauriandrea.mauri...@gmail.com wrote:
Dear all,
in my last lazarus svn version (Lazarus 0.9.31 r29326 FPC 2.4.2
i386-win32-win32/win64) the comment selection features (menu ide -- modify)
does not work
Dear all,
I developed an application that perform some calculations.
This application has a gui version and a console version, it runs on
windows and linux.
Both apps use the same units for calculation, only the interface units
are different.
I have some problems in the exception handling.
Il 09/03/2011 12:49, Hans-Peter Diettrich ha scritto:
I'd check this just before the operation, then you won't get an
exception at all. You can wrap that in a MyLn function, if you need ln()
more often.
ok. I know. but my question is more general and it is:
The gui app handles this operation
Il 09/03/2011 17:29, Mattias Gaertner ha scritto:
Some LCL widgetsets use this:
{$if defined(cpui386) or defined(cpux86_64)}
{$IFDEF windows}
Set8087CW($133F);
{$ELSE}
SetExceptionMask(GetExceptionMask + [exZeroDivide,exInvalidOp]);
{$ENDIF}
{$ifend}
thanks!
Dear all,
I loaded a lazarus project on my new Ubuntu 10.10 intel64 (lazarus
0.9.31 r30096 FPC 2.4.2 x86_64-linux-gtk 2).
The application is compiled correctly but it won't run.
Lazarus give me this message:
Caption: Lazarus application invalid
Text: The launching application path/exename
does
foo at bar in ~
○ file /bin/bash
/bin/bash: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for
GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux
2.6.9, stripped
ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked
(uses shared libs), for
it be included in the lazarus components?
Let me know,
Andrea Mauri
tbuttonededit.rar
Description: Binary data
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I am looking if in fpc/lazarus there are functions for object streaming
(not components but objects) similar to
http://download.oracle.com/javase/tutorial/essential/io/objectstreams.html
andrea
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Il 20/09/2011 19:35, Zaher Dirkey ha scritto:
check this functions
procedure XMLReadObjectStream(Instance: TObject; Stream: TStream);
procedure XMLWriteObjectStream(Instance: TObject; Stream: TStream);
I will take a look
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Why FileUtil unit uses LCL? There is a comment in the unit:
// For Smart Linking: Do not use the LCL!
I would like to use some functions included in FileUtil (e.g.
ExtractFileNameOnly) also in a Console Application without LCL
dependencies, is it possible?
Andrea
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Dear all,
I have some problems with TDirectoryEdit, TFileNameEdit etc when I try
to align them.
For example if I set align = alTop the edit is aligned and the button
disappears. In the same way it seems that aligning and anchoring does
not consider the button but only the edit.
Lazarus 0.9.29
Il 31/05/2010 20.24, Luiz Americo Pereira Camara ha scritto:
Try BorderSpacing.Right := 40
I already use a workaround in order to solve the align problem using
anchors, I just would like to know if it is a known bug or if actually,
as I understood, is it defined in this way by design.
Il 01/06/2010 21.01, Žilvinas Ledas ha scritto:
What workaround did you use?
I did not use the align property but anchors, so I can decide by myself
where I want to anchor the component.
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Lazarus 0.9.29 r26036 FPC 2.4.0 i386-win32-win32/win64
Open Lazarus -- View -- Debug Windows -- Watch -- Division By Zero
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Dear Alexander,
I found a bug in TLineSeries that was introduced in:
Revision: 25921
Author: ask
Date: 17.06.46, sabato 5 giugno 2010
Message:
TAChart: Pre-filter points outside of the current extent in TLineSeries.Draw
Modified : /trunk/components/tachart/tasources.pas
Modified :
Il 11/06/2010 10.31, Andrea Mauri ha scritto:
With this code not every point is drawn (see attached image where you
can see the marks but not the corresponding points).
It seems that the image was not attached..
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I fund an error compiling last lazarus svn (Lazarus 0.9.29 r26037M FPC 2.4.0
i386-linux-gtk 2 (beta))
glgtkglxcontext.pas(28,14) Fatal: Can't find unit GtkDef used by GLGtkGlxContext
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Il 11/06/2010 10.45, Mattias Gärtner ha scritto:
It works here.
Can you create a backtrace?
I tried but no significative output:
C:\lazarus_svngdb startlazarus.exe
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
Il 11/06/2010 11.55, Mattias Gaertner ha scritto:
gdb lazarus.exe
here the backtrace
C:\lazarus_svngdb lazarus.exe
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
http://gnu.org/licenses/gpl.html
This is free software: you are free
Il 11/06/2010 11.54, Mattias Gaertner ha scritto:
Fixed in svn.
Tested. Fixed.
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Il 11/06/2010 12.08, Mattias Gaertner ha scritto:
Fixed in svn. Please test.
tested. fixed.
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I would like to ask if openglcontext works with qt too.
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Il 11/06/2010 12.42, Alexander Klenin ha scritto:
On Fri, Jun 11, 2010 at 19:31, Andrea Mauriandrea.mauri...@gmail.com wrote:
Dear Alexander,
I found a bug in TLineSeries that was introduced in:
Revision: 25921
Also, please update to a recent version -- this revision is in the middle
of
Il 11/06/2010 15.13, Alexander Klenin ha scritto:
I have managed to reproduce it myself. Should be fixed in r26041.
tested. fixed. thanks.
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I would like to know if it is possible to access to a sqlite db file
included in a lazarus application as resource.
Thanks,
Andrea
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Il 05/07/2010 12.15, José Mejuto ha scritto:
Resources are read only. SQLite by default needs a real file to
access. You can configure recent SQLite modules to access non real
files providing an abstraction layer to access to virtual files which
in theory (I had never tested) will allow you to
Lazarus 0.9.29 r27237 FPC 2.4.0 i386-win32-win32/win64
If I follow the example described in
http://wiki.lazarus.freepascal.org/Anchor_Sides#Anchoring_to_invisible_controls
it does not work.
Instead of this:
+---+ +---+
| A | | C |
+---+ +---+
I get:
+---+ +---+
| A | | C
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