Web因此，我的问题是，每当我添加 QDebug 消息时，它都不会显示在应用程序输出中，尽管我的代码与教程中的代码100%相同，并且编译得很好。. 解决方案：. 右键单击您添加 QDebug 消息的文件，对我来说，它是 main.cpp 。. 单击build。. 按底部的绿色箭头。. 如果这仍然 ... WebIf a widget has both the Qt::WA_OpaquePaintEvent widget attribute and the autoFillBackground property set, the Qt::WA_OpaquePaintEvent attribute takes precedence. Depending on your requirements, you should choose either one of them. Since Qt 4.1, the contents of parent widgets are also propagated to standard Qt widgets.
Does each QT widget have a
WebAug 8, 2024 · Lucas, thanks for reply. I don't need to "save changes" while vtkOutputWindow is hidden. In generally my question is about how to hide/show this window from gui in runtime. vtkOutputWindow class is not derived from any widget so it havn't any method like "hide" or "close". Also destroy it not help too. WebC++ 为什么总是在mouseDoubleClickEvent之前调用mousePressEvent 请考虑以下代码： #include #include #include class Widget : public QWidget { public: void mousePressEvent(QMouseEvent* event) { std::cout << this word is a kind of food
在函数内调用QWidget类show()函数，没有显示窗口问 …
WebJan 27, 2024 · qt qt-designer qt4 setParent() not showing child widget 我有一个名为TitleBar的类，它是从QWidget继承的，我创建了一个新的小部件并做了setparent()，但在不显示setparent子小部件之后，它仅在注释了setparent后显示，但未与父级关联，而是在某些随机位置显示， 在最大化视图中 ... http://duoduokou.com/cplusplus/34727262033759115808.html WebAug 31, 2014 · In Qt Creator I've dropped a custom widget onto my form, and it looks fine, but when I compile and run, only the form's default Qt widgets (slider, label, etc) show but … this word means ‘not nice at all’