Qt signal slot no matching function call connect

23.12.2019| Daria Devereux| 4 comments

qt signal slot no matching function call connect

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  • c++ - No matching function for QObject::connect - Stack Overflow
  • Your Answer
  • Error: no matching function for call to 'QObject::connect | Qt Forum
  • Qt Signals and slots - No matching function for call - Stack Overflow
  • 今更聞けないシグナル・スロット総整理 - Qiita
  • Before that, why do you need the MainWindowContent.

    c++ - No matching function for QObject::connect - Stack Overflow

    It looks like a convoluted mean to create the central widget content. I want to keep the logic of how the program progresses from page to page in MainWindow. But I want other classes to generate the pages to be displayed. Qg I want to be able to manage the program without having a single. That's what is usually done, cut your application in logical pieces and then build as many QWidget based classes as needed to keep the code clean, simple and tidy. The scribble example is a simple example to start with.

    qt signal slot no matching function call connect

    I went over the example but I still have some difficulty converting it to my use. I don't think that this is the intended goal of this example because in MainWindow an instance of the QWidget subclass ScribbleArea is passed to setCentralWidget not a call to a function using the instance.

    Am I supposed to move all the code from getPageWidgetsLayout to the constructor and declare the label, lineedit, and pushbutton as private variables. No the example shows what I suggested: create a separated widget that functjon the functionality of interest and use that one in the MainWindow.

    qt signal slot no matching function call connect

    Finally, I got it to work but I still have the same problem that I started with. How do I pass the line edit and label to the slot? I searched online and all the examples have a condition other than the button being clicked that emit the signal. Any hints please? Qt Forum. Error: connecy matching function for call to 'QObject::connect This topic has been deleted.

    QT 信号与槽connect - 乌合之众 - 博客园

    Only users with topic management privileges can see it. Hi, I'm building a simple program to learn how to use widgets, layouts, etc without using the designer but ran through a problem.

    Reply Quote 0 1 Reply Last reply. Can i ask what the logic should be? Reply Quote 4 1 Reply Last reply. WhatIfShow us the updated header declaration, updated connect call, and the resulting error message. I forgot to subclass QObject! Now the program compiles but the slot is never called.

    Reply Quote 1 1 Reply Last reply.

    Your Answer

    Will this make the connect work when mainwindowcontent. Hi, Did you check whether you have any warning at run time? No warnings at run time.

     · 原文地址:no matching function for call to">error: no matching function for call to作者:brightmoon今天用c++标准模 博文 来自: sunooming的专栏 Qt 信号 和 槽 连接失败原因及解决办法fmwa.ks-mercana.ru  · 原文地址:no matching function for call to">error: no matching function for call to作者:brightmoon今天用c++标准模 博文 来自: sunooming的专栏 五款高效率黑科技神器工具,炸裂好 fmwa.ks-mercana.ru 除了返回值,Qt 4 的connect()函数与 Qt 5 最大的区别在于,Qt 4 的 signal 和 slot 只有const char *这么一种形式。如果我们将上面的代码修改为 Qt 4 的,则应该是这样的:fmwa.ks-mercana.ru

    I used both breakpoints and a qDebug statement. Then a silly question: how are you ensuring that you are clicking on the correct button? Otherwise, your type should be registered.

    See Operator Precedence. The second error is likely caused by one or both objects not inheriting from QObject.

    Error: no matching function for call to 'QObject::connect | Qt Forum

    Signals and slots can only work between QObjects. Just a quick checklist:. Also, if you're using Functtion version 5. It'll provide compile-time checking of the connections.

    Listen now.

    Qt Signals and slots - No matching function for call - Stack Overflow

    Learn more. Qt Signals and slots - No matching function for call Ask Question. Asked 6 years, 4 months ago. Active 6 years, 4 months ago. Viewed 12k times.

    今更聞けないシグナル・スロット総整理 - Qiita

    skot CapelliC CapelliC Still get error. Hi, I could not type more in the comment above, but want to say that I tried your solution and it did not change the error message. Then make a rebuild all Seth Anderson Seth Anderson 2 2 silver badges call 4 bronze badges. Hi Seth, Thank you, point 1 has solved that issue. I will add meta-object as soon as I have the core functionality working.

    Function and slots and connect other Qt conveniences slot not function without the meta-object information for those classes matching into the project. If you're using Signal Creator that's all done for you, but in most other environments you have to generate it yourself.

    4 thoughts on “Qt signal slot no matching function call connect”

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