出现NameError: name 'qtwidgets' is not defined 错误通常意味着 Python 解释器在尝试访问一个名为 qtwidgets 的变量或模块时未能找到它。根据你提供的问题和提示,这里有几个可能的解决方案和检查步骤: 确认qtwidgets模块是否已正确导入: 在PyQt5 中,QtWidgets 是一个模块,而不是一个变量。因此,你应该确保你的...
from PyQt5 import QtWidgets放在代码开头，你再试试
If a widget is passed, the default palette for the widget's class is returned. This may or may not be the application palette. In most cases there is no special palette for certain types of widgets, but one notable exception is the popup menu under Windows, if the user has defined a ...
For example, Qt::DisplayRole is used to access a string that can be displayed as text in a view. Typically, items contain data for a number of different roles, and the standard roles are defined by Qt::ItemDataRole. We can ask the model for the item's data by passing it the model ...
You could even mix widgets with different styles in your application, but doing so is not recommended. There are several ways to set the style of widgets: You can set the style for an individual widget by calling setStyle() on the widget object and passing a pointer to an object of a ...
Cross-Platform C++ GUI Library. Contribute to wxWidgets/wxWidgets development by creating an account on GitHub.
not passive, but fill a function in the interaction with the user. Controls that consist of several elements often use the style to calculate the bounding rectangles of the elements. The available sub elements are defined by theSubElementenum. This enum is only used for calculating bounding ...
argument. (e.g. during creation of aConfigDialog). "preferred_map_dict" is used in the same way. If "prefer_hidden" is set to True, it will not be added to aConfigDialog. You can also get the list of config items that do not have "prefer_hidden" set to true usingget_visible_...
It also serves as the default text in menus and tooltips if the action has not been defined withsetText() orsetToolTip(), and will also be used in toolbar buttons if no icon has been defined usingsetIcon(). If the icon text is not explicitly set, the action's normal text will be ...
This function is not usually called in application code. To add a widget to a layout, use theaddWidget() function; to add a child layout, use the addLayout() function provided by the relevantQLayoutsubclass. Note:The ownership ofitemis transferred to the layout, and it's the layout's ...