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i am beginner in qt
i created a GUI application in qt creator and added a push button and a line edit into form by desginer. i want the size of (width and height) lineEdit change when i click push button
but when i write this code:
void MainWindow::on_pushButton_clicked()
    lineEdit->setGeometry( 0, 0, 85, 30 );

it gives thiserror :
C:\Users\REZA\Documents\Qt\game4-build-desktop\..\game4\mainwindow.cpp:19: error: 'lineEdit' was not declared in this scope
Posted 26-May-12 10:31am

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Solution 1


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