QT - uncheck check box

Question

Guys please let me know how to uncheck the check box using QT C++.

Answer 1

use

QCheckBox::setChecked(false);

Answer 2

You can use the setChecked() method from QAbstractButton.

QCheckButton b;
b.setChecked( false ); // Uncheck it

Alternatively you could use setCheckState() setCheckState() method from QCheckButton. This gives you the option to 'partially uncheck' it.

QCheckButton b;
b.setCheckState( Qt::Unchecked );

Answer 3

Use following code,

QCheckButton chkbox; chkbox.setChecked( false );

Answer 4

use the ui class of your main-window to get the icon action and uncheck it, eg.

ui->actionDraw_Polygon->setChecked(false);