Web13 Feb 2024 · 我们都知道默认情况下,mouseMoveEvent需要在鼠标点击之后才能触发,如果想要省略鼠标点击,需要通过setMouseTracking设置。 但是我MyTabWidget的构造函数和mainWindow中都设置了setMouseTracking(true),只有鼠标在划过MyTabWidget的边界时才会触发mouseMoveEvent。 WebMouse events occur when a mouse button is pressed or released inside a widget, or when the mouse cursor is moved. Mouse move events will occur only when a mouse button is pressed down, unless mouse tracking has been enabled with setMouseTracking().. Qt automatically grabs the mouse when a mouse button is pressed inside a widget; the …
c++ - Cannot track mouse moves correctly, setMouseTracking has …
WebQT setMouseTracking没反应_setmousetracking没有效果_xingzaicpp的博客-程序员秘密. 今天用Qt Creator自动生成了一个窗口程序,想试试setMouseTracking,兴冲冲地写下了如下 … WebQt Assistant 解释:. 该属性用来设置某个控件是否被跟踪轨迹。. If mouse tracking is disabled (the default), the widget only receives mouse move events when at least one … 卜 か
C++ setMouseTracking函数代码示例 - 纯净天空
Web27 Jan 2024 · Signals & Slots. Signals are notifications emitted by widgets when something happens. That something can be any number of things, from pressing a button, to the text of an input box changing, to the text of the window changing. Many signals are initiated by user action, but this is not a rule. Web有时候设置了鼠标跟踪setMouseTracking为真,如果该窗体上面还有其他控件,当鼠标移到其他控件上面的时候,父类的鼠标移动事件MouseMove识别不到了,此时需要用到HoverMove事件,需要先设置 setAttribute(Qt::WA_Hover, true); Web14 Aug 2015 · Thus it is this widget who receives the mouse events and on which the child widgets are placed, not the QMainWindow. if you place: centralWidget ()->setAttribute (Qt::WA_TransparentForMouseEvents); setMouseTracking (true); in the constructor of your mainwindow, you'll see the mouse events but you cannot press the button because this … b casカード のみ 購入