qt4

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qt4: how to export a table to sql script?

Can we export schema of 开发者_运维问答a table and it\'s data from qt code? Or can we do it with sql script, a query that return a table\'s schema?You can probably manage to export simple tables in a[详细]

2023-04-04 07:13 分类：问答
How can I change the ui->widget->windowOpacity?

Now I want to change the ui->widget->windowOpacity and ui->stackedWidget->windowOpacity() ,but failed.[详细]

2023-04-04 05:29 分类：问答
Destructor isn't called after adding a qmenubar

I have the following files (Main window/UI): files UI: # -*- coding: utf-8 -*- # Form implementation generated from reading ui file \'mainwindow.ui\'[详细]

2023-04-04 03:17 分类：问答
Set QTableWidget cell's borders to 0px

How can I set the cell borders in a QTableWidget to 0px? Preferably I can choose which sides of a cell\'s border to set to 0, but I can live with set开发者_开发百科ting them all to 0 as well.[详细]

2023-04-03 14:51 分类：问答
How to make a Widget slide view with Qt4?

I currently display several widgets (quite large ones, almost screen-wide) on a QStackedLayout, let\'s call these widgets \"pages\". Switching from a page to another is done with buttons below (previo[详细]

2023-04-03 13:35 分类：问答
qt4 - Copy/Paste from qt4 application

I\'m not sure if this is a known limitation, or if it\'s something specific with my use of Qt4, but it ap开发者_如何学Cpears that when I copy/cut from one of my Qt4 applications, I cannot paste it any[详细]

2023-04-03 10:20 分类：问答
Inheritance from macros in Qt4

Part of my code looks something like this. #include <QObject> #define MYMACRO : public QObject #define SIGNAL_MACRO Q_OBJECT signals: void testSignal(std::string s);[详细]

2023-04-03 09:49 分类：问答
Qt Whats This using a link/anchor

How can I put an anchor <a> into a whatsThis for a widget an intercept it being clicked? I know about linkActivated in a QLabel, or linkClicked开发者_C百科 in a QTextBrowser, but I don\'t know[详细]

2023-04-02 11:28 分类：问答
matplotlib and pyqt4: update plot in one thread, draw in another

I\'m creating a live data monitor GUI with PyQt4 and matplotlib to create the plots.The GUI displays multiple plots at a time (around 6 or 7).To give the GUI thread more time and slightly better respo[详细]

2023-04-02 09:49 分类：问答
How to access widgets using qt thread?

In my program I have a widget class with text box and qthread pointer. Using qthread pointer i wan开发者_JS百科t to update the textbox continously by text selection without affect the application. But[详细]

2023-04-02 06:50 分类：问答