具有不同参数的 Qt Connect 信号 [英] Qt Connect signals with different arguments

问题描述

我有一个简单的问题，请阅读关于 使用参数较少的插槽连接信号，当然还有 Qt 文档.

I have a simple question guys, reading the thread about connecting signals with slots with fewer arguments, and of course, the Qt documentation.

但是，我不需要用插槽连接信号.我实际上想将信号与参数较少的信号连接起来.

However, I do not need to connect signals with slots. I actually want to connect signals with signals with fewer arguments.

文档对插槽非常清楚，但是信号呢?

The documentation is very clear about slots, but what about signals?

这被认为是安全的吗?

谢谢&干杯！

推荐答案

没有区别.接收信号可以具有比发射信号更短的签名.因为它可以忽略额外的参数.您可以连接如下信号:

There is no difference. The receiving signal may have a shorter signature than the emitting signal. because it can ignore extra arguments. You can connect a signal like:

signal(int, int, int)

使用以下签名发出信号:

TO SIGNAL with the following signatures:

signal1(int, int, int)
signal2(int, int)
signal3(int)
signal4()

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