In the event you cannot get the *.pdb files:
We often take the sources over to a CentOS machine with the same Qt version to
run valgrind (or simply get the stack trace). We usually discover the real
problem lies in our own code. In fact, to this date, this has always been the
case. But it was
I sincerely hope you are wrong; at least for the next several years. (Like 10
years.)
Staying on the bleeding edge is simply not an option for many of us that are
simply Qt users (not developers). It took us years to update to Qt 5 because
they killed QFTP without a fully functional replacemen
> On Mar 4, 2015, at 11:44 AM, Thiago Macieira
> wrote:
>
> On Wednesday 04 March 2015 17:15:45 Scott Aron Bloom wrote:
>> By then its too late.. I want the shell script that calls the make system to
>> fail, saying you have the qmake setup wrong...
>
> Why would it be wrong? If qmake is insta
Provided you defined a mkspec when you built Qt, you can put something like
this in your project file:
linux-g++-64{
message(Building for linux 64-bit)
LIBS += -lusb -L../lib64
}
linux-g++-32{
message(Building for linux 32-bit)
LIBS += -L../lib
}
win32-g++{
message(Building for windows 32-bit)
L
> On Feb 8, 2015, at 4:39 PM, René J.V. Bertin wrote:
>
> On Sunday February 08 2015 22:59:24 Alejandro Exojo wrote:
>
>> not an issue if the distribution or other third parties has a large enough
>> community to provide additional packages, for example:
>>
>> http://llvm.org/apt/
>
> Thanks
> On Feb 10, 2015, at 4:17 PM, Allan Sandfeld Jensen wrote:
>
> On Tuesday 10 February 2015, Oswald Buddenhagen wrote:
>> On Wed, Feb 11, 2015 at 12:37:41AM +0400, Konstantin Ritt wrote:
>>> Yes, that would be an ideal solution. Unfortunately, that would also
>>> break a LOT of existing code.
>>
plan to setup Qt and QtCreator from
the latest Enterprise versions available. Any inputs would be welcome.
Karl Ruetz
Sototech
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We have built Qt 5.1.1 - Qt 5.3.2 from GIT sources on CentOS 6.x. The
Installer does not work for us, even on desktop machines. I believe it is
tested primarily for Ubuntu. ( I could be wrong on that one.)
We will be making our first attempt at a Qt 5.4 on CentOS 7 later today or
tomorrow.
> On Feb 4, 2015, at 7:51 AM, Graham Labdon
> wrote:
>
> Hi
> I am just starting to explore Qt support for databases and have this as a
> first attempt to open a data base
> QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
> db.setHostName("bigblue");
> db.setDatabaseN
On Sep 26, 2014, at 2:37 PM, Karl Ruetz wrote:
>
> On Sep 24, 2014, at 10:22 AM, Thiago Macieira
> wrote:
>
>> On Wednesday 24 September 2014 10:41:09 Koehne Kai wrote:
>>> I think Thiago already wrote it: use the offscreen plugin . Launch your app
>>>
On Sep 24, 2014, at 10:22 AM, Thiago Macieira wrote:
> On Wednesday 24 September 2014 10:41:09 Koehne Kai wrote:
>> I think Thiago already wrote it: use the offscreen plugin . Launch your app
>> with e.g.
>>
>> -platform minimal
>>
>> And continue to use QApplication.
>
> offscreen, not mini
Here’s how I do it:
TARGET = MyProgram
VERSION = 1.0.0.0
DEFINES += \
APP_VERSION=\"\\\"$$VERSION\\\"\" \
APP_NAME=\\\"$$TARGET\\\"
I then access the TARGET as the constant APP_NAME and VERSION as the constant
APP_VERSION
Karl
On Sep 25, 2014, at 8:04 AM, rap wrote:
> Is there a way to
On Sep 22, 2014, at 10:25 AM, william.croc...@analog.com wrote:
> On 09/22/2014 11:10 AM, Thiago Macieira wrote:
>> On Monday 22 September 2014 11:01:23 william.croc...@analog.com wrote:
>>> Gang:
>>>
>>> While we are talking about the need for a Q[Core]Application...
>>>
>>> What is the differ
One way is to use QFileDialog::getSaveFileName().
Another is to use QFileDialog::selectFile().
Karl
On Sep 16, 2014, at 7:52 AM, hualet wrote:
> I want to supply a default file name showing the QFileDialog to save some
> data. is that possible?
> __
One possible way would be to connect the rowsRemoved signal for the model to a
slot that calls model.select() or some other function that resets the model and
updates the view.
Karl
On Feb 14, 2014, at 3:59 PM,
wrote:
> Hi.
>
> How to correctly remove row from QSqlTableModel?
>
> I’ve u
g QNAM and have been
unsuccessful. I've posed the issue in many forums (Qt Centre, etc...) and to
Digia. We always end up back with QFtp.
Karl
Thiago Macieira wrote:
>On quarta-feira, 11 de setembro de 2013 10:37:29, Karl Ruetz wrote:
>> My main complaint remains the removal of
My main complaint remains the removal of QFtp without providing equivalent
replacement features in QNAM.
Now, under 5.1.1, I have yet to get the QFtp addon to work.
So it looks like I have to stop using Qt 5 for Android because I cannot
reliably support all my desktop apps.
It honestly breaks
For your particular case, you should be able to just us a "#undef
Bool" after the #include line.
Or, if you use Xlib.h in many
modules, you can create your own mitchsXlib.h and put this in there.
Or, you could grep the Qt4 sources for Xlib.h and see how they did it.
Karl
On 2013-09-06 1
On 2013-09-04 10:23, arno wrote:
> Hello all,
>
> Problem:
>
Generate a unique database connection name for a connection in a
Thread
> (QRunnable). I'm trying to do this (pseudo code):
>
> class
LongRunning : public QObject, public QRunnable {
> Q_OBJECT
> explicit
LongRunning();
>
> protec
r I
can write blog articles (in English) if this is off topic for the book.
> ++
> Guillaume Belz
>
> -
>
>> DE: "Karl
Ruetz"
>> À: interest@qt-project.org
>>
ENVOYÉ: Jeudi 15 Août 2013 19:36:14
>> OBJET: [Interest] QT
Our company is about to jump into mobile development with both feet
(finally). Up to now, all our products have been server and desktop
products. Now we are beginning the design process for smart phone and
tablet based client applications for our server products.
Of course,
I'm pushing to use
I'm worse that that. I "index" according to what I'm "iterating".
If it's cars:
for(int iCar = 0; iCar < NoOfCars; ++iCar)
... or
some such thing.
Karl
On 2013-08-15 10:34, Scott Aron Bloom wrote:
> And I was taught... int ii in for loops :)
>
> -Original
Message-
> From:
in
I was able to get it to work by commenting line 25 from file
src/src/shared/qbs/src/lib/lib.pro
# else:
*g++*|*clang*|*icc*:QMAKE_CXXFLAGS += Werror
Karl
On 2013-08-08
15:02, Bob Hood wrote:
> I have to do some Qt development work with
CentOS 6.4 and Qt 4.8.4. Out of
> the box, CentOS 6.
I'd try QDataStream.
For input:
QFile
file("file.xxx");
file.open(QIODevice::ReadOnly);
QDataStream in(&file);
use >> operator or readBytes method to read
for output:
QFile
file("file.xxx");
file.open(QIODevice::WriteOnly);
QDataStream
out(&file);
use << operator or writeBytes() meth
Are you using Ubuntu by any chance? We had a similar problem last
year but it was unrelated to Qt. If you tried to do several consecutive
searches in a web browser on Ubuntu using the French language, this
exact error would get sent to standard error and the browser would
crash.
Applying this
The binary installer does not automatically build or install the
database plugins. You either have to install Qt from source and specify
-qt-sql-odbc (built in) or -plugin-sql-odbc (plugin) to the configure
command OR you have to build the plugin manually after installing.
Instructions are here:
Did you copy the .pro.user file from Windows 7? If so, remove
it and open the project again.
It should prompt you for all the
available tool chains (kits, development enviroments, etc...) to be
configured for that project.
Karl
On 2013-07-30 07:06, Alexander
Syvak wrote:
> A console appi
Make sure any of your own libraries you are linking (if any) are
built using the same Qt configuration (DEBUG vs. RELEASE) as your app
you are compiling.
Karl
On 2013-07-27 09:41, Hector Gordon wrote:
> I have been getting the following message when running some new code
"The program has u
>From the documentation for QCoreApplication::exit:
"After this
function has been called, the application leaves the main event loop and
returns from the call to exec(). The exec() function returns returnCode.
If the event loop is not running, this function does nothing."
QCoreApplication::q
technical roadmap requests. We have several. But I hesitate to gum
up this list or the Qt Developer's list with these requests.
Karl
Ruetz
Soto Technologies
On 2013-07-18 14:21, Lorn Potter wrote:
>
On 09/07/2013, at 4:46 AM, "Miller, Doug" wrote:
>
>> Since Qt5 Alph
Both the documentation and my own experience say what you are after
is not possible:
http://qt-project.org/doc/qt-4.8/threads-modules.html#threads-and-the-sql-module
I do a similar thing only with MySQL. I am forced to create a
QSqlDatabase object with each thread. If I do not, I get dead lo
Did you check QSqlDatabase::lastError()? Might give you a clue. I'd
also check any logs generated by the DBMS to see if a table has become
corrupted or some such thing.
Karl
On 2013-05-06 13:00, Duane wrote:
> Why would bool QSqlDatabase::transaction ()
> return false? I have a
system that
You can pass the -qt-sql-sqlite switch to the configure command when
you do your build. I don't recall if the default for this switch is on
or off.
If you install from the binary (rather than from sources) both
Sqlite and an ODBC plugin are present.
Karl
On 2013-04-25 10:33,
Michael Jackso
SQLite is there. You can specify "memory" as the database. The SQL
examples in the documentation do this.
You could use a QSettings
object as an in memory database as well.
Karl
On 2013-04-25 10:12,
Michael Jackson wrote:
> Is there any "built in" or "In Memory"
database structures that
My company has been writing server type applications in Qt for about
10 years. While these do not involved acquiring data from the command
line, they do have to detect "work to do" in some fashion through the
event loop. In your case, it seems as though your "to do" list is coming
through the co
I have a server product that runs four daemons that have similar algorithms.
They have run for months with no problem.
Karl
Sent from my Galaxy S®III
Original message
From: Tony Rietwyk
Date:
To: interest@qt-project.org
Subject: [Interest] Interval QTimer not firing i
I've got the same issue. I have a commercial license so I may push
on Digia a bit for it.
Karl
On 2012-11-14 07:13, Miller, Doug wrote:
> It was painfully noted that Qt Service Framework has been moved out
of the core release in Qt5 Beta Release 2 after being there since alpha.
Was it update
I'm not sure why you would want to run 21 threads that are writing
files on an 8 core machine. Depending on the OS, it is likely you will
start time slicing which can actually be slower than waiting for a
thread to finish before starting another one. Since you are writing
files, the Disk I/O is
Hey now. I'm not "paranoid" or "idiotic", just lazy enough to be
willing to pay for a commercial license so I don't have to worry about
staying LGPL compliant.
Karl
On 2012-08-15 08:12, Konrad Rosenbaum
wrote:
> You are missing my point: there are only a few areas where
you can't use
> (L
As Obtuse as it might sound, for my company, it's worth the cost of
the commercial license just so we don't have to tip toe around all the
LPGL conditions and exceptions.
We have found Digia to be very
reliable and responsive and, for now, we are very optimistic about
Digia's future with Qt.
To get a truly fixed width/pitch font, you have to use a font that is
designed to be such (monospaced), such as Courier, otherwise the results
can look pretty nasty.
Karl
On 2012-08-01 09:55, Carl Schumann wrote:
> Hi,
>
> Qt community I am developing a spreadsheet like program. As such I
>
If I ran Nokia for a year I would analyze which mobile OS(s) is/are
dominating the markets I want to penetrate. Obviously iOS is
proprietary so unless I want to write Apps for iStuff I have to look at
Android and Windows (mostly Android). It is possible that it would be
best to make Android p
As I recall, the bind-address should be the server's IP, not the
clients.
For example, if your MySQL server IP is 172.16.246.129 then entire
block should be look like as follows:
[mysqld]
user= mysql
pid-file= /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysq
Is there a commercial customer group providing some input on this?
I am a commercial customer. Charts are key to what we do.
Is there someone I could contact to provide our requirements in hopes some of them might be addressed?
Karl
Sounds good. Will be the source code available?
> Hi,
>
> As
I have it under the Build menu; 4th item from the bottom.
Karl
I am using qt creator 2.4 on windows and i can't find the "run qmake" command anymore. where did it go?
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We've taken to recreating our production development environment every six months.
Basically, it means we get very little production development done while we qualify and deploy.
But these newer versions of QT Creator are, quite simply, worth the cost and trouble. The feature where the project tre
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