General and Desktop

@QString said in How can I display two QTextEdit widget share same content?: I wonder if there exist some elegant way to share content. no, currently not. Since there is a rich-text and a plain-text layout object internally there is no data which can be shared. I would rather say do not display 50KB of data at once. Implement some type of paging instead.

Qt Chart and KD Chart (unfortunately I have no other experience with the other tools mentioned so I can't comment on those) can link directly to a QAbstractItemModel to refresh as soon as you update your data in the model. Qt Chart, at the current development, however, refreshes the entire series every time 1 point changes making it quite slow when handling large volumes (did not test KD Chart under those conditions)

@Kalado said in Connect() uses wrong emitter object.: Look at some code: //A.h class task2 : public QWidget { Q_OBJECT public: task2(QWidget *parent = 0); ~task2(); protected: void mousePressEvent(QMouseEvent *event) override; signals: void myWidgetClicked(); //A.cpp void A::mousePressEvent(QMouseEvent *event){ /// use the respective classname emit myWidgetClicked(); } If ur using Classname as task2 , use void task2::mousePressEvent(QMouseEvent *event){ emit myWidgetClicked(); } Thanks,

@m.sue Thank you. It worked.

@apalomer Congratulations.

Hi and welcome to devnet, You should at least give the Qt version you are using as well as platform your a running. You can also check the bug report system to see if you can find something similar.

Hi, You first have to build a 64bit Qt with MinGW. This wiki article might help you get started. Hope it helps

The download will also happen asynchronously. Is it me or are you preparing an architecture that might work based on an internal technical detail ?

Thanks Kyle. In the end I solved it by subclassing my qgraphicsitemgroup and adding a sceneEventFilter. This appears to be the approach the C++ people take

the difference is due to a modification of the Composition Mode of the QPaineter wich was painting the objects (QPainter::QCompositionMode_Darken on the first screenshot and QPainter::QCompositionMode_SourceOver on the second one) So not an evolution of Qt painting behavior, but a modification of the app's code.

I though so, thank you very much @raven-worx

@shavera said in QVariant to/from QFlag: Q_DECLARE_METATYPE I dont see you register your own enum anywhere? Q_DECLARE_METATYPE (Dummy::DummyOpt);

@Sinbad Please report it anyway. being a regression it will probably be treated with high importance and fixed.

@mrjj It's working on Qt5.9.1 and compiled msvc2015. First, I download the msvc2015 from the maintenance tool. Then I compiled with Qt 5.9.1 for Desktop(msvc2015) and installed it. After compiled, copied designer dll file to qtcreator designer plugin folder. Finally, I deleted msvc and returned the mingw :) Now it's working with mingw.

Thanks @jsulm , printing the ErrorString provides a clue: I get an empty file error. Hmmm... Something seems to go wrong when retrieving the playlist from the remote server. Using curl with the provided URL does work, so that's not the problem. I'll try to dig deeper...

Done & Solved, tnx again.

@jsulm on WIN10 , the sample code can't work.Maybe linux works well. I found a solution on How to handle keypress events in a Qt console application? . The final answer works well!