General and Desktop

Qt opensource can connect to any SQL server, even without having the specific driver using the ODBC driver.

@jonasqt said in QProcess can launch programs but not python (command line): is it wrong to expect the command line to actually open as a window Yes, it is. Command line tools do not have any windows - they run in a shell/terminal (terminal has a window). On Windows you can try pythonw.exe instead of python.exe. Or you start cmd.exe and pass the path to Python executable with -c as parameter to cmd.exe

@Marek I have no experience with freeswitch as client library, but only as pbx server. Anyway thanks for sharing this solution, if i will find some free time i will check it.

What is the best way to distinguish the a single QGraphicsItem from other QGraphicsitems in the QGraphicsView I cannot change he color as well style any other way any one can suggest , Will inserting a image will help

Thanks. Will try it out

@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.