General and Desktop

for more infos: http://www.qtforum.org/article/24195/qpushbutton-as-delegate-in-a-qtableview.html

hmm, for example: there is a file named with “?”, maybe it's “?myfile.txt". now, i wanna open the file. of course, i get the file path of the file, and initialize a QFile with file path. the problem is that, the file path, the QString, can not be read correctly, since “?” can not be read, it will displayed as "?". i think it's cause by decoding. and this is what i mean.

I think this will work Fine. Try this in your Stylesheet, @pushButton->setStyleSheet("background: transparent");@

QLibraryInfo seems to be indicating that the plugins are loading from the wrong location. It isn't respecting qt.conf(even though it's embedded as a resource in the path (/qt/etc/qt.conf). It also isn't respecting the QT_PLUGIN_PATH environment variable. The library info prints that I'm using are after a QApplication is created so it isn't that. Here's a snippet: @int main(int argc, char *argv[]) { QApplication a(argc, argv); qDebug() << "CORE APPLICATION EXISTS: " << (QCoreApplication::instance() != NULL); qDebug() << "CORE APPLICATION PATH: " << QCoreApplication::applicationDirPath(); qDebug() << "qt.conf " << QFile::exists(QLatin1String(":/qt/etc/qt.conf")); qDebug() << "LIBRARIES LOADED: " << QCoreApplication::libraryPaths(); qDebug() << "PREFIX PATH" << QLibraryInfo::location(QLibraryInfo::PrefixPath); qDebug() << "PLUGINS PATH" << QLibraryInfo::location(QLibraryInfo::PluginsPath);@ Results in: CORE APPLICATION EXISTS: true CORE APPLICATION PATH: "/Users/my_user/my_app/MyApp.app/Contents/MacOS" qt.conf true LIBRARIES LOADED: ("/Users/my_user/QtSDK/Desktop/Qt/4.8.1/gcc/plugins", "/Users/my_user/my_app/MyApp.app/Contents/PlugIns", "/Users/my_user/my_app/MyApp.app/Contents/MacOS") PREFIX PATH "/Users/my_user/QtSDK/Desktop/Qt/4.8.1/gcc" PLUGINS PATH "/Users/my_user/QtSDK/Desktop/Qt/4.8.1/gcc/plugins" The middle entry on libraries loaded actually appears to be from the QT_PLUGIN_PATH export EDIT: I figured out was wrong with qt.conf. I was calling QImageReader::supportedImageFormats() in global scope. Apparently it was causing QLibraryInfo to cache a bad QSettings object.

Note that if you get a NetworkError, then there is no http response error code to be had. For HTTP, you need to have a working network first...

[quote author="Lukas Geyer" date="1351670161"][quote author="shav" date="1351663862"]How I can check correction data in my QList variable if when I try to use isEmpty method application will crash?[/quote]Run your application in a debugger. It will automatically place you at the position your application crashed. If not, put a breakpoint right before the call to QList::isEmpty() and step through. I would valgrind the application as well (or any other memory corruption detection tool).[/quote] Thanks! I found the problem.

If you are using setTextColor(), @TextEdit->setTextColor(Qt::white);@ will change the Text Color Alone. But the Text Cursor will remain the default Black in color...

[quote author="fnoyanisi" date="1351685386"]Thanks... I excluded mingw32-make.exe from antivirus.... It worked finally![/quote] You are welcome. I am glad that I was able to help.

If you don't want to reordering your widget and layout you can use this: delete yourWidget->layout; But your problem basicly is the wrong layout assigning with widgets. Anyway a codesnippet would be useful...

this is i also know , but how to write simple threadpool class i not sure i know .

Yes and no. Yes, the backend for QtQuick2 is very different. No, the QML frontend has just gone through minor changes. See "QML Applications in Qt 5":http://doc-snapshot.qt-project.org/5.0/qtquick-porting-qt5.html. There are still some issues with Qt 5 and some minor API changes going on, which might or might not affect you. We are using Qt 5 for two projects and both aren't at a relevant scale. As to the question if there will be a commercial-grade Qt 5 release by the end of the year. Well, maybe, or maybe not. It is at least planned as far as I know. The "releasing mailing list":http://lists.qt-project.org/pipermail/releasing/ is a good place to start if you want to follow the state of Qt 5. One major design goal of Qt 5 was source code compatibility with Qt 4. So you might release your application with Qt 4 and port it later on to Qt 5.

I found a solution. I moved the specific .ttf I wanted to a resources directory in my app so it would be bundled with it in the future. I then used: QFontDatabase.addApplicationFont("resources/FuturaCondensedExtraBold.ttf") Once I had done so, I was actually not able to do this: QFont("FuturaCondensedExtraBold") but I could simple do QFont("Futura") and the style it would find was ExtraBold

http://javascript.info/tutorial/datetime-functions http://www.w3schools.com/jsref/jsref_obj_date.asp and http://blog.stevenlevithan.com/archives/date-time-format

Hello, rcari, this works. Thank you so much!!! Your hint concerning QCoreApplication::libraryPath() is gold worthy! I confess, I often lose awareness on the doc, but this one should solve quite a lot of problems in the future before they arise. You made my day! Once again: Thank you! Regards Joerg

Yeah, I think Jake is Right... Try By using and write us whether it works or not. @a.setWindowIcon(QIcon("fileName.ico"));@

Using VC10 compiled libs might be ok in some cases, but it's asking for trouble when you need to interact with e.g. stl types. For example size of std::string changed between VC10 and VC11, so things like QString::fromStdString() might not exactly work (I haven't checked, just speculating), or seem to work and then explode in your face at some point. I wouldn't try that and definitely wouldn't ship product based on such hybrid. I compiled Qt from source too, but it's such a pain, especially since I needed both win32 and x64 builds with webkit and openssl. It takes ages, and if you forget something in configure step it can eat up half of your day. Also lack of VS add-in is a major inconvenience, so for now VS2012 is more of a playground than real Qt dev platform for me.

Thanks! It works :) . As you said, I was searching in the wrong place. Marked as solved. Regards, Jake

Thank you for your response! We definitely have problem with architecture there. We are looking for appropriate solution. But as temporary hack -- it seems it's okay to destroy QMetaCallEvent in the catch block. [quote author="rcari" date="1349775603"]I think you have a design problem. You must ensure that T2 is not sending requests to T1 anymore when you destroy it. I think the simplest solution for you would be to simply use signals and slots for communication between T2 and T1 as what happens in the background is pretty much what you are doing by hand. However, the signal/slot mechanism provides extra security in the sense that when one object is destroyed (using deleteLater()) all its pending events are processed and all its signals/slots are cleanly disconnected.[/quote]