What do I do if a slot is not invoked?

In this lesson, we will look at signals They are messages that nodes emit when something specific happens to them, like a button being pressed

What do I do if a slot is not invoked? The slot can ignore any or all of these arguments The only A class which emits a signal does not need to know which slots receive the signal

In this lesson, we will look at signals They are messages that nodes emit when something specific happens to them, like a button being pressed

signal and slot in qt To successfully connect a signal to a slot , they must have the same parameter types in the same order: connect(ftp,

signal with many arguments to a slot with less arguments When moc-ng is run as a binary, it is desirable to not abort on those errors, for compatibility with

signal slot error: static assertion failed: Signal and slot arguments are not compatible 错误原因： 信号和插槽参数不兼容。 通俗的说，就是信号用的一种

Note that signal and slot arguments are not checked by the compiler when using this QObject::connect() overload Exercise 3: SingalsSlots