qt connect函数
时间: 2023-12-11 20:00:53 浏览: 109
Qt的connect函数是用于在Qt中连接信号和槽的函数。它有多个重载形式,但基本形式如下:
```
QMetaObject::Connection QObject::connect(const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type = Qt::AutoConnection)
```
该函数的参数包括发送者QObject指针、信号字符串、接收者QObject指针、槽函数字符串和连接类型。发送者和接收者可以是同一个QObject,而信号和槽的参数必须对应上。
在使用该函数时,需要注意函数的参数是否带括号,因为在跨平台编译过程中,Qt的信号和槽函数的匹配是严格的,如果参数不匹配,会出现错误。
总结起来,Qt的connect函数是用于在Qt中连接信号和槽的重要工具,通过它可以实现对象之间的通信和交互。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [Qt中的 connect 函数](https://blog.csdn.net/QtCompany/article/details/130604226)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [QT中connect函数的几种用法详解总结](https://blog.csdn.net/u011394397/article/details/123798595)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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