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Trying to get signals to work in my QT. I need some advice and help
原标题:

So I have in my main function:

string s = "
Welcome to Rawr
";
const QString output(s);
**emit output(output);       <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Getting an error here**

I have set up a Signal in QT Desginer named: output(const QString &s)

My receiver for the signal is my "Form"... in my form.h i have: The slot is called "changeOutput(const QString &s).

void Client::changeOutput(const QString &s)
{
    output_box.setText(s);
}

output_box is a QTextEdit box.

The error I am receiving is : TCPClient.cpp:122: error: no match for call to ‘(const QString) (const QString&)’

What am I doing wrong?

Thanks :)

最佳回答

Since you declared a variable output, the name output refers to that variable in the local scope. The compiler doesn t know that in output(output) you want one output to refer to the variable and the other output to refer to the slot/method.

Use a different name for the local variable to avoid this collision.

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