How to change push button text by clicking on another push button

I added 2 Push buttons in ui like this Attachment 13398

i added a slot for button "CLICK",

Code:

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void MainWindow::on_pushButton_clicked()
{
 
}

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when i click on this button "CLICK" i want the button's "BUTTON" text to be changed to "CLICKED".
How can i do that ?

Call setText() on the other button object.

Since you are using Designer you likely have two member variables accessible through the ui pointer:

Code:

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QPushButton *pushButton; // the "CLICK" button object
QPushButton *pushButton2; // the other button object

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then

Code:

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void MainWindow::on_pushButton_clicked()
{
    ui->pushButton2->setText("CLICKED");
}

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