How to pass a string to a function on a connect signal

[jins]

Hi am trying pass a string to a function that searches a database, as soon as a user types in the lineedit.

I am watching the linedit for any text change then want to send text in the lineedit to a function called searchfunc.

What am i missing or doing wrong.

connect(ui->lineEdit, SIGNAL(textChanged(QString)), ,SLOT(searchfunc(QString)));

connect(ui->lineEdit, SIGNAL(textChanged(QString)), ,SLOT(searchfunc(QString)));

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