General and Desktop

You are confusing the matter again. Are you using QTableView or QTableWidget? QTableWidget gives you accessor method to get the items representing the headers (if you set them, I'd think), while if you are using QTableView, you can use the model to find out the header contents as well. If you do just a little bit of searching in the documentation on a relevant term like "header" you will find them in no time flat. I am wondering though: what is your goal? Why do you need to store the contents of the headers in some variables? It doesn't seem to make too much sense.

have you tried to use QPixmap::transform method ? From the Qt docs, we can invoke QTransform::rotate (90), and QTrasformationMode with Qt::SmoothTransformation using bilinear filtering.

[quote author="Volker" date="1320789006"]This basically works for me: @ void MainWindow::displayToolTip() { QPoint pos = mapToGlobal(ui->textEdit->pos()); QToolTip::showText(pos, QString("The text edit has %1 chars").arg(ui->textEdit->toPlainText().count())); } @ [/quote] I did this originally but the tooltip wasn't alway showing, probably due to me making the changes too fast. thanks.

you will not drag'n'drop a widget I think you mean a listWidgetItem, right? There is a description on how to do drag'n'drop, that is (from my POV) good: "FAQ: How can I drag and drop in a widget":http://developer.qt.nokia.com/faq/answer/how_can_i_do_drag_and_drop_in_a_widget "FAQ: How can I drag from e.g a QListWidget and drop in an editable QTableView?":http://developer.qt.nokia.com/faq/answer/how_can_i_drag_from_e.g_a_qlistwidget_and_drop_in_an_editable_qtableview "FAQ: When dragging and dropping between 2 views, how can I perform a move without pressing Shift?":http://developer.qt.nokia.com/faq/answer/when_dragging_and_dropping_between_2_views_how_can_i_perform_a_move_without "Wiki: Drag and Drop within a GridView":http://developer.qt.nokia.com/wiki/Drag_and_Drop_within_a_GridView "Docs: Drag and drop support in models":http://doc.qt.nokia.com/4.7/model-view-programming.html#drag-and-drop-support-and-mime-type-handling "Docs: Drag and Drop Examples":http://doc.qt.nokia.com/4.7/examples-draganddrop.html These links should give you some ideas.

is TCPSocketThread a subclas of QThread? If yes, the object itself belongs to the creating thread (typically the main thread), and the slot will be executed there. "Have a look at peppes article about threads.":http://developer.qt.nokia.com/wiki/ThreadsEventsQObjects

it should be fixed. not good idea on using #ifdef OS for a syntax like this!

[quote author="Rajveer" date="1320743912"]Hi Andre How to add image file in post please tell so that i can add image to show what i want to read from QTableView.[/quote] For example "postimage":http://postimage.org/ !http://postimage.org/image/4sumhxkgb/(stepashka)!

A lot of thanks, now I understand how it works!

Hi, Well, your correct. Since I was posting this question behalf of my friend and I think i'm lacking the understanding of his requirement. Now, I've requested my friend to post directly his requirement. Sorry for higlighting it!!!

If I get it right the taskbar is showing the exe icon while you want another icon. As Broadpeak explained, the icon in the taskbar is platform dependent and depends on how the application "taskbar" on windows manages icons. I don't think there is a common and simple solution for this.

Thank you for your answer! I have tried @formLayout->setRowWrapPolicy(QFormLayout::WrapLongRows);@ already, but then it only wraps when the whole row is filled by text. I'm sorry, but how can I set the sizeHint()? I would like the first column to be fixed and the second column should expand. Or for example set the ratio of the width of the columns (e.g. 1:2).

[quote author="Andre" date="1320734170"]Moved to General & Desktop (from Quick), as I think it belongs here.[/quote] Thank's Andre.

Oh thank you very simple. Regards

Thanks. QComboBox::setModel() helps.

I think signal/slot handling can be done without having an eventloop, but only if you use direct connections only. By default, signal/slot connections are direct, unless the thread the emit happens in is different from the thread in which the object lives. In that case, a Queued connection is used, which does need an eventloop. Lukas already explained that earlier in this topic. QObject is quite fundamental to using any of the nice Qt features, so I see little chance of getting around it. However, I think quite a bit can be done without using a QCoreApplication, though I think GUI stuff and sockets and the likes of those are off.

mohsen> I haven't compiled it myself. I use the program many different computers and it works the same on all of them. I don't want to control master volume, I want to control the volume internally. So this works OK for me, just the change in dB seems to be bigger then I intent. Regarding QtMultimediaKit, I plan to switch to it. But the last time I tried it, it didn't work on Windows. There was no binary available and when I tried to compile it myself, it always failed (with both MinGW and MSVC). I'll check it again but I'm afraid there won't be any change before Qt 4.8.

Please note that the proxy solution is fine if you don't have a lot of duplicate rows. In such case in fact, you will query all the database rows and drop them later, which can be bandwidth and time consuming. The best solution is to drop to SQL, after all if you are going to do such a filtering chances are you will need complex queries later on.

[quote author="saho" date="1320674768"] But is it also possible to let the user enter everything and check afterwards if it is a valid input? [/quote] Connect a slot to the focus signals (which one you are interested in) and call the validator's validate method there, without having to tying the validator to the line editor.

For starting (from this book: "Advanced Qt Programming"): @ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { playIcon = QIcon(":/play.png"); pauseIcon = QIcon(":/pause.png"); mediaObject = new Phonon::MediaObject(this); mediaObject->setTickInterval(OneSecond); videoWidget = new Phonon::VideoWidget(this); Phonon::createPath(mediaObject, videoWidget); audioOutput = new Phonon::AudioOutput(Phonon::VideoCategory, this); Phonon::createPath(mediaObject, audioOutput); createActions(); createToolBar(); createWidgets(); createLayout(); createConnections(); setWindowTitle(QApplication::applicationName()); } ... // i.e: one method of the others: void MainWindow::playOrPause() { switch (mediaObject->state()) { case Phonon::PlayingState: mediaObject->pause(); playOrPauseAction->setIcon(playIcon); break; case Phonon::PausedState: // Fallthrough case Phonon::StoppedState: mediaObject->play(); playOrPauseAction->setIcon(pauseIcon); break; default: break; } } @ Edit: please use @ tags around code sections; Andre