General and Desktop

@Trapezoid_Dreams Well theoretically you might be able to do anything at the paint level, but I think that would be totally the wrong approach for this issue.

@Bonnie Yeah, I think Qt may not have exact flag/attribute I need. And what you say it's a useful way to solve my quesiton if I only need to manage a few objects. Without QLayout it will become a strenuous work in further. I think below code is a feasible way to solve similar question: bool QtGuiApplication1::eventFilter(QObject *watched, QEvent *event) { if (watched == m_pWidget && (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseButtonRelease || event->type() == QEvent::Wheel)) { if (m_pWebWidget->focusProxy()) { QCoreApplication::sendEvent(m_pWebWidget->focusProxy(), event); } } return false; } Thank you for your advice and i will use it.

@suslucoder Can you please explain how you want to put the elements from gpsList into your table? All elements in one row or something else? As @SGaist pointed out iterating over the same list in two nested loops does not make sense...

No, windeployqt has no such a switch, you have to remove the unused by yourself. But does this one file really matter?

HI, I just opened the pro file for about the fifth time so I could answer your question. This time I clicked on Configure Project. I think I did that before. But this time all the files are there. So it looks like everything is good to go. And I see the other files listed in the pro file. Thank you for your quick reply..no pun intended.

Hi, The most "simple" is to downsample from 10 to 8 bit. Maybe OpenCV has better support for that kind of format and might be an alternative.

Hi, @WLOrion said in Introduction in Qwt: I didn't know this behavior of the Qwt Classes. This is nothing Qwt specific, it's part of the C++ basics. As for tutorial, there's a nice online book that is in German but the author claims that online translator should give you a good enough result in your own language.

@Taytoo said in QSharedMemory access without lock()?: That's why wondering whether osx api uses some underlying locking api? Look at the code, it's opensource.

@suslucoder It is not clear what you are trying to do here. I want to match my integer definitions to my predefines. "Match" in what sense? You have 6 variables. Does that mean each of those variables can take its own value, independent of whatever is in the others? In that case, it is not clear what the purpose of the #defines is? Especially when you write: int TM_AP_ID_PID; //it is 0 and i use it as an idex Is the value of TM_AP_ID_PID always 0? Then why do you have it in a variable? Purely at a guess, you should be considering one or both of these: Use a C++ enum. Create a 6-element array (or map) for your currently separate variables, so that you can address them via array[TM_something].

@Vladi said in [Qt Designer] PyQt5 - why does the designer add "centralWidget"?: Why? What's the purpose of that thing? Because a QMainWindow has a central widget. This widget consumes the area between menu/tool bar and status bar. This widget is used as container/parent for all the widgets you put inside your main window. What is the problem with it?

@developer_61 said in How to load QTreeView asynchrone.: how to use that thread? Start here: https://doc.qt.io/qt-5/thread-basics.html "is it possible to do that during this loading with for example an small gear?" yes

@jsulm It means - not an option for me to be used. Thx to all. Will do my own solution. Issue closed.

@JKSH ,thanks,I find that this happens when debugging, not when publishing。

@suslucoder said in How to add datas in table widget with increasing the row number: It should start to add from row 0 to the end of row count And what is the problem? Set row count via https://doc.qt.io/qt-5/qtablewidget.html#setRowCount and add your data...

@Uday-More you're forcing synchronous behavior on an asynchronous API, thats your problem. Change it to proper event driven code and also connect to the various error signals of QNetworkAccessManager and QNetworkReply

@arjun98 Did you check https://doc.qt.io/qt-5/qmediaplayer.html ? It also has signals you can use for your purpose.