General and Desktop

Yes, Qt is an amazing toolkit, but there is no secret, before using it, you need some basic C++ knowledge. I then suggest you to refresh your memory with some C++ basics before going on :)

Hm, I had to use this library in one more file and there this definition doesn't seem to solve the problem :/

[quote author="Iama Hummingbird" date="1315081309"]OK pepe. But does your comment mean that a QByteArray can hold data up to 2GB? I thought QByteArray can only hold up to 32K bytes since the size is based on integer.[/quote] "int" is a 32 bit signed integer on all platforms supported by Qt. Therefore, you can index (and store) up to 2^32-1 bytes inside a QByteArray. Which means up to 2GB - 1B. That's why I was asking for an use case -- allocating a single, huge chunk of 2GB is not that common. [quote] Some of the standard examples are having webpages 'readAll()' into a QByteArray through QNetworkReply. But many web pages have more data than 32K or more characters than 32K so if put into a QString, the webpage would be amputated. [/quote] See above for the 32K part. But I think that this is quite a corner case, and you won't wait to buffer 2GB in memory before attempting to read it all at once -- you will read it as soon as possible (i.e. just after readyRead is emitted). This way you can safely download files even bigger than 2GB.

nobody can help me?

How can be updated the QTableView (in real time) while you enter some values in a database (using QLineEdit, QComboBox, QSpinBox, .... for introducing the values)? Example.: I introduce some values and when I press QPushButton the values are added to the database and QTableView adds a row with the new record in the database.

Ok thank you guys! :)

No, Qt has not direct driver support, so no direct possibility in Qt to get USB events. QMainWindow is derived from QWidget, so the method "winId":http://doc.qt.nokia.com/4.7/qwidget.html#winId exists. I already used it, it exists and works. Which errors do you get if you use it?

Reading qt source code (qgl_x11.cpp) I guess I understand why there is the problem. The visual used to create the window is only set in qglcontext::choosecontext and since this a private data of qglcontext (d->vi), my custom QGLContext (which redefined choosecontext) as no way to setup the visual. So it use a 0 visual which is CopyFromParent. The setformat; is a bit of a trick because it let a temporary QGLContext set the visual. I guess one solution would be to call choosevisual in qglcontext::create to initialize the visual instead of doing it in choosecontext.

Thanks for all replies, that is what I needed :)

Qt does not "grab points" (nor it releases them). Something must be wrong in the code you're using for dealing with that. Can you show us some?

Actually its working fine... I only had a minor problem with my coordinates.Thanks anyway

NO I'am using windows :D..and ICM_FAN is very difficult :S:S Edited: please use a polite language. -- peppe

Use a domain socket, QLocalSocket resp. QLocalServer is the Qt counterpart. Or you just use QSocketNotifier and ordinary read/write methods as already suggested (example usage see "here":http://developer.qt.nokia.com/forums/viewthread/9254/).

QApplication::setLayoutDirection() doesn't affect already instantiated widgets. You need to call setLayoutDirection in your main() function like this @int main(int argc, char** argv) { QApplication app(argc, argv); app.setLayoutDirection(Qt::RightToLeft); // show stuff return app.exec(); }@ However, if you want to change the layout direction after your QApplication has been execed you need to install a new QTranslator and retranslteUi() your UI. See "this email thread":http://lists.qt.nokia.com/pipermail/qt-interest/2011-May/033798.html for more information and example code.

You have two options: Use QWebSettings and specify the font in C# ++ Example: @QWebSettings* websettings = QWebSettings::globalSettings(); websettings->setFontFamily(QWebSettings::StandardFont, font.family());@ Don't forget to run that before instantiating the QWebView. Use HTML 5's web font feature + CSS. In the <head></head> section of your page put the following: @ <link href='http://fonts.googleapis.com/css?family=Allerta' rel='stylesheet' type='text/css' /> @ Then you can use the font in your CSS. You can of course change the font to your own, as long as you have a URL for it. I included one of Google's fonts just as an example.

Nevermind. Once I placed the project in subverion, the mnu item activated.

You are right it is not documented indeed. Now I emit the signal for all the nodes I update. Thanks dude! Cheers!

I always thought that VideoLAN uses ffmpeg stuff. But acording to the http://www.videolan.org/developers/x264.html its oviously the other way around ;) Sounds interesting, I'll keep reading the documentation, thank you!

You will need to do some raycasting and detect if the vertex is near the ray.