Hi Is there any way to replace QSslSocket used by QNetworkAccessManager with my own implementation? I was really looking forward to use WebKit!! I'm working on attaching PKCS11 implementation to our Qt based software. So far the only way I found is to use QHttp - but doc says that this class should not be used.. I find QNetworkAcces...
I'm writing a video annotation application with Qt4 in which users need to be able to seek to various points in a video, putting markers on various objects and then setting keypoints for those markers so that they stay on the objects in the video as they move around. QGraphicsItemAnimation seems like a great place to start for these mar...
I am working on an embedded Linux device that has only qt. For some reason, Java decides to use gnu.java.awt.peer.gtk.GtkToolkit. How can I force it to use gnu.java.awt.peer.qt.QtToolkit instead (or change the default behavior)? ...
I have a QListView in Icon mode with lots of icons, so that a scrollbar appears, but the scrolling is not smooth and this IMHO confuses the user since it jumps abruptly from one point to another at each scroll. I would like to make the scrolling smooth but I didn't find anything in the docs. Is it possible? ...
Hi how to to sort an XML file using Qt my file look like this : <?xml version="1.0" encoding="UTF-8"?> <project> <task next="2" first="1" name="2" value="name1"/> <task next="3" first="1" name="1" value="name2"/> <task next="4" first="3" name="4" value="name3"/> <task next="4" first="1" name="6" value="name4"/> <t...
I've a block of code where I've used Qt's new animation framework. I needed the animation just in that block of code and I don't need the animation related variables in other places. Clearly, the animation won't work if it is destroyed before the animation completed. For example, the following doesn't work: if (animate) { QPropertyA...
Free of charge, simple to learn/use, Cross Platform C library for GUI Apps? Am I looking for Qt? Bonus question: Can I develop with the said library/toolkit on Mac then recompile on PC/Linux? Super Bonus Question: Link to tutorial and/or download of said library. (RE)EDIT: The truth is that I'm in the process of catching up on the C...
I have a piece of code intended for drawing & exporting a transparent image with Nokia Qt. However, it does not work. I always see black background with lots of noise. I must fill the background with White color but I want transparency, not white color. Please kindly advise. #include <QtGui/QApplication> #include <QtGui> int main(int a...
Hi all, Very soon we are going to work on a project with open source s/w that does many things and one of the modules concerns with capturing live feed from a usb based camera for upto 48 hours and overwriting it in a nonstop loop. This would be going on in parallel with other operations in the application. We also have to display the c...
Qt's translation function tr does not work in the main function but works fine in a QWidget member function. Why is that? int main(int argc, char *argv[]) { QApplication a(argc, argv); QDialog dialog; QString temp = tr("dadasda");//error:tr was not declared in this scope dialog.show(); return a.exec(); } ...
I am trying to align position of tabs in QTabBar to the left. Does any one has any idea? I was able to do this when I was using QTabWidget using style-sheet. Now, I have restriction that I cannot use QTabWidget. So have to do this in tab-bar. Any help is highly appreciated. ...
We've compiled QT 4.6 and QWT 5.2.0 for VS2005. We're trying to derive a class from QwtDial, and the derived class has slots. So, we need to add the Q_OBJECT macro. However, when we do that, the linker chokes out this error: error LNK2001: unresolved external symbol "public: static struct QMetaObject const QwtDial::staticMetaObject" ...
When a user moves the slider it will trigger a signal and based on that I want to call a method readData from dataClass, to return me a string and then print it in guiClass. But it does not work. I get Program received signal: “EXC_BAD_ACCESS”. I am using Xcode. As soon as I move the slider the program crashes and highlights line 9. 1...
I'm pretty new to QT. I've been messing with it for a week now. I came across a error while I was trying to add a custom datatype to a Qlist like so QObject parent; QList<MyInt*> myintarray; myintarray.append(new const MyInt(1,"intvar1",&parent)); myintarray.append(new const MyInt(2,"intvar2",&parent)); myintarray.append(new const MyI...
In Qt, when moving a QToolBar, one can use the QToolBar::topLevelChanged(bool) signal to know if the the QToolBar is floating or docked. When the QToolBar is docked, how can one get the Qt::ToolBarArea (LeftToolBarArea, RightToolBarArea, TopToolBarArea, BottomToolBarArea) where the QTookBar is docked? Thanks. ...
It there a widget like this: It should be able to show/hide some contents under it. ...
Mac OS X (Cocoa) NSSetUncaughtExceptionHandler Windows SetUnhandledExceptionFilter Is there a platform independent way to do this using Qt? ...
I am a total newbie to Qt. As I was reading the documentation, I came across this configuration: connect( Object1, Signal1, Object2, slot1 ) connect( Object1, Signal1, Object2, slot2 ) What could possibly be the use-case for this? Looks odd to me coming from an Erlang/Python background. It must have to do with C++ inheritance twists ...
Is there any integration library/framework available? If not, what would be the best way to achieve this integration? Thanks in advance. ...
Hi, I'm starting to learn Qt and I'm stuck on particular step, which is: I cannot create executable file. My steps are as follows: Creation of *.cpp In console typing qmake -project (this creates .pro file) In console typing qmake -makefile (now I have makefile + some other files) I'm trying to create .exe by typing qmake but this isn'...