What are the tips for using Qt?
This article mainly introduces "what are the tips for the use of Qt". In the daily operation, I believe many people have doubts about the use of tips in Qt. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubts about "what tips are used by Qt?" Next, please follow the editor to study!
If Z-order assignment: is not a valid widget. Error prompt, open the corresponding ui file with notepad, find the empty place, and delete it.
Good at setting user data using the second parameter of QComboBox's addItem, you can achieve a lot of effects, which can be extracted using itemData.
If you use the webengine module, release the program with the QtWebEngineProcess.exe+translations folder + resources folder.
A.setAttribute (Qt::AA_NativeWindows); allows each control to have a separate handle.
Qt+Android prevents the program from being closed.
# if defined (Q_OS_ANDROID) QAndroidService a (argc, argv); return a.exec () # elseQApplication a (argc, argv); return a.exec (); # endif
You can style the overall indicator, for example:: down-arrow,::menu-indicator {}:: up-arrow:disabled,::up-arrow:off {}.
You can execute the position to set the background picture.
QMainWindow > .QWidget {background-color: gainsboro; background-image: url (: / images/pagefold.png); background-position: top right; background-repeat: no-repeat}
Embedded linux runs Qt program Qt4:. / HelloQt-qws & Qt5:. / HelloQt-- platform xcb
The configuration file of the Qtcreator software is stored in: C:\ Users\ Administrator\ AppData\ Roaming\ QtProject. Sometimes if a problem is found, delete this folder and open creator to regenerate automatically.
QMediaPlayer relies on local decoders. Download k-lite or LAV Filters installation on WIN.
At this point, the study of "what tips Qt has to use" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!
