General and Desktop

@duckrae since 1956 Read-Write-Memory is a thing. Big shout out to IBM! So what exactly do you want to do, what platform what os, what condition etc.

@hanwil1953 Do you face the same problem if you replace QDateTime datetime = QDateTime::fromString(dt, "yyyy-MM-dd"); with QDateTime datetime = QDateTime::fromString(dt, Qt::ISODate); or even QDateTime datetime(QDate::fromString(dt, Qt::ISODate), QTime(0,0));

I was missing a library and not only that, I was using a compiler nmake. Which I found out is used for Visual Studios. I should've been using mingw32-make, because I am using mingw. Thanks for your help. I'll mark as solved.

Hi, What are you using from OpenCV's highgui module ?

Signals and slots are not required to be handled in objects belonging to the same thread.

@JonB said in QModelIndex::constInternalPointer returns nullptr unexpectedly: "It can't!" Alright The problem for me is that not only each QModelIndex in the first column may have parent but each QModelIndex in the remaining columns should also have the same parent as the QModelIndex in the first column of the same row. Thanks

Thank you! I don't know why I couldn't find this on my own...

@eyllanesc Thanks man your solution is elegant. Thx again

@mchinand, correct. I've tried again with qDebug and that's the case. Thanks.

@ChrisW67 I'm using another method, I'm not reccommend this method because its for newbie like me. hehe. So I build one per one of channel frame like this... [image: 581a8a10-1c1e-4eba-8d36-df239c55aa01.png] I think it solved but I have to make more codes for this methods

yes, i connect to Nginx server. I get this error from Nginx when backend server isn't running.

@jsulm Thanks a lot for your reply. Can we use our Existing COM component, which we are currently using with MFC Classes? Please guide me, i got stuck.

@JonB It at least gets me somewhere to start from. I doubt I would need to edit it. Thank you!

@Mikeeeeee You are asking other people to spend their time looking through your code and figuring what might be wrong. "Minimal" essentially means "the minimum number of lines to reproduce the problem; all extraneous lines have been removed". Yes, that means to get an answer you are expected to spend some time going through what you are working on and reduce it to the minimum necessary to reproduce your problem. Yes, that takes a bit of effort. Just like you are asking other people to spend in order to help you.... Purely as an example, in your code why do I have to wade through lines & lines of lineEditName and lineEditPassword code, with fixed widths, stylesheets and everything else, to reproduce your question about a dialog not having an icon in the taskbar? Did you try removing them before you posted to see whether they affect the issue? Good luck finding someone who will care to take the time to answer, given how much time you have taken to produce the example.

@sonichy said in QString replace %U: QProcess->setProgram(sExec), sExec can not contain space, if not will fail to start. Not true. Space in the path to or name of the executable is fine. Program and arguments must separated! Which is why I told you earlier That line is not a program/executable, is it? The first word is the executable and the second word is an argument And that is why I would like you to read what we write and act on it, not just do nothing about it..... Whole of your lambda body code with QProcess *process = new QProcess onward could be replaced with just one line: QProcess::startDetached(sExec, QStringList() << filepath, path); if you want to avoid the memory leak.

Hi SGaist, you're a Genius :) The problem is the bad command sent to device. Many thanks for help.

@RyanEdward Although not a native QTCreator solution, I use: C gist to simulate key presses on linux. Mapping this binary to a keyboard shortcut on your native desktop environment can hack your way to a solution.

@Emon-Haque No, the model took ownership of the items when you added them and is responsible for deleting them when you remove them from the model (via removeRow(), but not if you used takeRow(), see https://www.qtcentre.org/threads/63505-removeRow-or-takeRow-in-QStandardItemModel).