2016年6月10日 · I have tried to call its name, call it as a property of QToolBar, I have read that it is not possible because a QAction is not a widget and even though it creates a button, it is only as an ancillary ToolBar property, which can only be changed on a macro scale, i.e. all icons can be substituted or no icons, all QAction buttons on a toolbar can ...

2011年10月5日 · Subclass QPushButton, and add a setAction() method that takes a QAction. Make the button take over the action's properties when a new action is set, and watch for the QAction::changed() signal) for the button too. Last, make clicking the button invoke the QAction::trigger() slot. It should not be too difficult to do.

2015年4月23日 · QAction does not support styleSheet or Palette as its just a holder class that inherits QObject. Inorder to use stylesheets/color you need to use it a QWidgetAction incase of a QMenu. In the image link where do you use a QAction …

2020年8月26日 · so what i am trying to do is to use the shortcut assigned to the button in my visual studios code, so essentially when the button is pressed the actions for emergencystop within the code are initiated. I just dont know how to use QAction - the example on the QT website has just confused me further.

2017年3月9日 · I would like to resize the icon of a QAction. I have a set of actions that I build dynamically to which I add a corresponding icon, but the size of this does not allow to define the image well and I would like to increase the size without having to increase the size of the text.

2021年7月3日 · @JGBe said in QtWidgets/QAction: No such file or directory: because ui_mainwindow.h is automatically generated in the build process. What build system do you use? Make sure it's not picking up the wrong uic.exe from Qt5.

2017年1月6日 · Using QAction to hold a string and a bool is kinda overkill. I'm not sure what redundancies you mean but now you made the code really redundant. The widget is meant to be used as an action widget, which inherits a QAction on its own, so now you have a QAction inside a QWidget inside a QAction.

2011年6月20日 · I have some menu items (menus QActions) I need them to tell the function the user to set the tooltip setToolTip (), but the tips do not appear. Searching the...

2021年11月4日 · SGaist is right. In this case, lamba is not needed. Simply use slot onActionClicked and. connect(&action01, &QAction::triggered, this, &App::onActionClicked);

2021年9月24日 · Normally, you connect each menu action to a single slot using QAction::triggered(), but sometimes you will want to connect several items to a single slot (most often if the user selects from an array). This signal is useful in such cases. and I see it passes the triggering QAction as a parameter to the slot. This is good.