General and Desktop

@sierdzio The code worked by triggering C++ signals further away from CPU-blocking operation.

Here is a good tutorial on singletons: http://www.yolinux.com/TUTORIALS/C++Singleton.html

could you please share working Qt app which display video correctly.

@ManiRon28 From a couple of years ago at least there are posts stating that __attribute__ ((packed)) works in gcc but is "broken" in MinGW, and the suggested workaround is to use #pragma pack: https://stackoverflow.com/a/37199319/489865 https://stackoverflow.com/a/31622291/489865 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52991

@BJUN Hi and welcome to devnet forum qwt is an extension of Qt as third party library. It maintains its own mailing list. Please check out there. This might be a faster way to get feedback on the issue.

@KristinPerry said in How to integrate QTWidget to Brasil TV New Plugin: Brasil TV New What is this?

Hi Just as a note for this that I wanted automatically added to every widget derived of my class. You can also set up a promoted widget with all dynamic properties you want. Then Drag it to back to the WidgetList so its shown in scratchpad. Then you can use this as a template with all dynamic properties already added. Simply drag it back into a from. Also works across projects if it also has the promoted widget included. [image: yoFaz4.png] Make sure you hit a white empty area when dragging so it goes to scratchpad.

@Inzinejkr said in How to use QStackedWidget: I can't wrap my head around this sentence Oh dear, I try to make my answers clear, sorry about that! If you do not go setCurrentIndex(something) then the widget being shown is just whatever it was however you left it in the Designer. Which might be some blank widget if that's what you had there, or possibly "nothing" if QStackedWidget allows that. Either way, what you have now done sets the current widget explicitly from code, so it will indeed be one of the widgets you added into the stack in your code at runtime. Hence fixing your issue. With a QStackedWidget it is your task in code to call setCurrentIndex() whenever you want the current widget displayed to change. A QTabWidget behaves like a QStackedWidget, but has the additional "furniture" of a QTabBar to provide an interface to the user for changing which page/widget is shown.

hi @Pablo-J-Rogina I've read that and If i'm not mistaken msys is what holds all the commands such as make right? However, I'm still unsure as to how to update it if that is what I have to do

@fem_dev said in Plugin + QObject: undefined symbol: MYLIB_EXPORT How is it defined?

To only get the name, a simpler way is use QDir::entryList instead of QDir::entryInfoList.

I'm unable to test this anymore due to not having the hardware, so hopefully this will work for someone who has the same problem. Thanks for the suggestion,

@Christian-Ehrlicher Thank you sorry i am really new to QT and c++ is not my native language c# is so get little confused but than you for reply :)

@JonB - sorry that was the subject my other post to this forum

@SGaist, Got it. Here's the code snippet in case anyone's looking for an answer: ui->listWidget->setFixedSize(ui->listWidget->sizeHintForColumn(0) + ui->listWidget->frameWidth() * 2, ui->listWidget->sizeHintForRow(0) * ui->listWidget->count() + 2 * ui->listWidget->frameWidth());

@Sprezzatura I think this looks better :) Your code as it stands presumably leaks QNetworkRequest *request = new QNetworkRequest(url); and QNetworkAccessManager *nam = new QNetworkAccessManager;. You could put these on the stack (no pointers, no new). And I think you're supposed to deleteLater() the QNetworkReply *reply = nam->post(*request, content);. You can get away without, but one day when you want examine your code for memory leaks with e.g. valgrind it will be better.