General and Desktop

One way to prevent that from happening again is adding @ Q_ASSERT(QFile(<resource path>).exists()); @ before setting the URL source. Just make sure to use the same path later :-)

I don't think there's a difference - if your embedded linux distribution includes the required libraries then yes.

it activates the What's This? mode... refer to QWhatsThis documentations this i don't know...but it will probably involve reimplementing a lot of things

I'll make sure that somebody who can will, then. Thanks for trying! Edit: Weird, I could comment myself, and I think you definiately should have been able to. It would be weird if you cannot actually give the information asked for because of the status "More information needed". Are you sure you were logged in?

There are two* classes of SQL commands: DML: Data Manipulation Language is a set of commands that allows you to query and manipulate the data in your database. DDL: Data Definition Language is a set of commands that allows to you manipulate the structure of your database: add tables, manipulate indices, etc. Qt unfortunately only provides any level of support for the first, not for the second. It is possible to add this, but it is complicated. I wrote an extended set of Qt database drivers for MySql and for MS Access once that adds these features, as I used them a lot. These drivers added a lot of options to QSqlDriver::sqlStatement, as well as some other features. If you're interested: the code is available under GPL.

Dear Andre, perhaps you can send me some links to the videos you talking about (beside the 2 videos from dev days 2010 and 2011 because this is just not enough). That can be more helpful...

Note that it won't work out of the box, as the model you're trying to transpose is (part of a) tree, not a table. So, you'll need to adapt the proxy to basically also get a setRootIndex, and only transpose anything under that index.

Andre, Thanx this largely works

I'm still a newbie but think I just fixed this one. In Windows, select Start, Update Qt SDK. Select Package Manager, Next. Under Qt SDK, expand the nested items "Development Tools", "Desktop Qt", "Qt <version> (Desktop)". Check the box for "Desktop Qt <version> - MinGW" to install the MinGW compiler for desktop. Select "Next" as needed to finish the install process.

Thanks, tass. It should be that I was finding!

Now i have next problem, if i dont have acces to ContextMenu Slot how i can disable/enable action in this menu dependent on what clicken(file/dir/nothing) ??? eny help ??

AFAIK, yes (that how Necessitas was started, no?), but it's not build-in there. This is way out of my area of expertise, you will have to ask other people for concrete answers.

Please search the forum first. These issues have been discussed many times before. Always keep in min that you should assume people on this forum are NOT lawyers and are not qualified to give legal advice. That includes me.

No, AFAIK, in Qt4 it's still QWS.

Hi, ~aabc! It should be with QWS. But I am not sure. I found this information on "Gitorious":http://qt.gitorious.org/qt/qt/blobs/4.8/dist/changes-4.8.2#line173 As far as I understood, if in Qt 4.8.2 changelog in RTOS listed QWS, it should be QWS instead of QPA, but I am not sure.

[quote author="Andre" date="1340784921"]Would it be an option to use the QObject::destroyed() signal? By the time that one is emitted, the widget parts of the object have already been destroyed.[/quote] finally I found solution to wait for destroy: @widget->deleteLater(); widget->exec();@ unfortunately, delete qApp; still corrupts memory: Message: First-chance exception at 0x133a79b2 (QtGuid4.dll) in ustation.exe: 0xC0000005: Access violation reading location 0x0000000c. (Call stack:) @> QtGuid4.dll!qThreadStorage_deleteData<QFontCache>(void * d=0x141f4010, QFontCache * * __formal=0x00000000) Line 97 + 0x22 bytes C++ QtGuid4.dll!QThreadStorage<QFontCache *>::deleteData(void * x=0x141f4010) Line 140 + 0xe bytes C++ QtCored4.dll!QThreadStorageData::set(void * p=0x00000000) Line 165 + 0x7 bytes C++ QtGuid4.dll!qThreadStorage_setLocalData<QFontCache>(QThreadStorageData & d={...}, QFontCache * * t=0x0028e35c) Line 92 + 0x12 bytes C++ QtGuid4.dll!QThreadStorage<QFontCache *>::setLocalData(QFontCache * t=0x00000000) Line 155 + 0x14 bytes C++ QtGuid4.dll!QFontCache::cleanup() Line 2804 C++ QtGuid4.dll!QFont::cleanup() Line 111 C++@ What could I try to find a source of this issue? I have put a breakpoint into QThreadStorageData::set() but it never gets called during Widget destruction, so I can not identify what is going wrong. Could you please suggest where to look (in QT source) to find source of this issue? Thanks.

I'm quite sorry, but I'm having a hard time understanding you; you will find a sketch attached how such a task could be done in principle and it's up to you to fit it to your concrete requirement. @ bool importFile(const QString &fileName) { QFileInfo fileInfo(fileName); if(fileInfo.exists(&#41; == false&#41; return false; QSqlQuery query; query.prepare("INSERT INTO " + QLocale(QLocale::English&#41;.toString(fileInfo.lastModified().addDays(-1), "MMMM").toLower() + "_ama (answer, ..., offset) VALUES (?, ..., ?)"); do { readNextRecordFromFile&#40;&#41;; query.addBindValue(readNextValueFromRecord(&#41;&#41;; ... query.addBindValue(readNextValueFromRecord(&#41;&#41;; } while ((query.exec&#40;&#41; == true&#41; && (lastRecordRead(&#41; == false)&#41;; return ((query.isActive() == true) && (lastRecordRead(&#41; == true)); } @ Brain to terminal. Exemplary. And make sure you've had a good read on C++, design principles, Qt and the Qt SQL module.

Hi, ~Uncannytable. Welcome to fun Qt Developer Network! I will quote user who answer your question on another "resource":http://forum.codecall.net/topic/70523-synchronyzing-mp3-tracks-on-qt/: [quote author="Programming God" date="1340740020"]So you are creating instance of Phonon:MediaObject for each mp3 tracks in a song? I mean, as example, if you have 3 mp3 tracks for 3 instruments in a song, you are creating 3 instances of Phonon:MediaObject for playing 3 different tracks? I think you are doing this and that's why the synchronization term is here, right? Now how you are trying to do the synchronization? Or, you are not doing at all to keep the tracks synchronized? AFAIK, Mobility will not run on PC?[/quote]

[quote author="rooney" date="1340787297"]Solved the problem!! On Debian Squeeze GDB 7.01 is installed but Qt Creator requires Python enabled GDB 7.4. So I followed the instructions on http://qt-project.org/wiki/QtCreatorBuildGdb. [/quote] Good job!