General and Desktop

Or just use a custom image with a stylesheet: button->setStyleSheet("background-image: url(...)")

@Chris-Kawa OK, thanks for advise. I had checked in the mean time with Qt 5.3 and designer does also do a pointer assignment now. I have started years ago with MSVC and addin. I guess those dialogs are from that time. Never seen this possibility (at least I do not remember). Anyway the thing is the generated code has to work and it does either way. Unfortunately, I step into this trap and giving wrong advise.

I've also had the same problem that I solved the same way. I happened on Windows and ever on Linux

@Chris-Kawa said: No. I just said you shouldn't! Not all users have it installed in that path and not all users even have drive C:. Stick with the QDesktopServices. I understand that isn't the correct approach but I want to do a test with QProcess to learn to use it. In my program I will use , obviously , QDesktopServices :: OpenURL. Again thanks for the help Chris-Kawa

Ok, I solved the first problem. It was due to me elsewhere using remove on the url string and me thinking the function returns modified copy while it modified the stirng itself. One solved, two more to go...

Sort the tree view by click a column. Set the view can be sorted by click the "header". treeView_->setSortingEnabled(true); Connect the header signal to a slot made by you. connect(treeView_->header(), SIGNAL(sortIndicatorChanged(int, Qt::SortOrder)), treeModel_, SLOT(sortByColumn(int, Qt::SortOrder))); In the slot, call the sort() virtual function of the model. sort() virtual function is a virtual function of QAbstractItemModel, and one should override it. void TreeModel::sortByColumn(int column, Qt::SortOrder order) { sort(column, order); } Override the sort() function as your model should do. emit dataChanged(QModelIndex(), QModelIndex()); from a model to update the whole tree view.

Hi and welcome to devnet, Are you asking something like: how can i build my application ?

Ho are you setting the focus on the QLineEdit ?

@maxim.prishchepa Also I just wanted to add so that other users will get this info as well. It didn't start working until I did QDockWidget.setParent(None). Unparenting it allowed Qt to finally destroy the widget once the parent wasn't holdinging onto it anymore.

@SGaist yes , i installed it , it is interesting , ! but do it manually still the best solution , even it is little more complicated thanks for ur help ^^

Yes, Chris. That is right, once use shared pointer, never delete it. This is the QSharedPointer.data() document in help. see content in [] do not delete the pointer returned by this function or pass it to another function that could delete it, [including creating QSharedPointer or QWeakPointer objects.]

Did two thing. Using recommended code below, compilation Error appear ->"The program has unexpectedly finished" QImage myImage; myImage.load(":/file/rightp.png"); myImage.scaled(1366,254, Qt::IgnoreAspectRatio, Qt::SmoothTransformation); How to scale stylesheet to 1/4 of mainwindow using below code MainWindow w; w.setStyleSheet("background-image:url(./file/left.png)"); w.show();

Ha, that is good to hear. Happy coding!

In openglwindow . cpp if(e->key() == Qt::Key_5){ filenam = QFileDialog::getOpenFileName(0,"Vali graafiku fail"); } Call from main also cause problems. Is only way to make opengl draw from other thread or could use same thread for gui as well?