- 1 year ago
Force keyboard focus to LineEdit QT
To force keyboard focus to a QLineEdit
widget in Qt, you can use the setFocus()
function. This function allows you to programmatically set the keyboard focus to a specific widget. Here's an example of how to force keyboard focus to a QLineEdit
:
cpp#include <QLineEdit>
// ...
QLineEdit* lineEdit = new QLineEdit(parent); // Create a QLineEdit widget
// Set the focus to the QLineEdit
lineEdit->setFocus();
In this example, lineEdit
is a QLineEdit
widget that you have created. The setFocus()
function is called on the lineEdit
object to set the keyboard focus to that widget. When this function is called, the QLineEdit
will receive the keyboard focus, and the cursor will appear inside the text box, ready for user input.
Make sure that you call setFocus()
after the QLineEdit
has been created and added to the widget hierarchy. If you call it before the widget is created or added to the layout, it may not have the desired effect.
Keep in mind that if there are other focusable widgets in the application, setting the focus to the QLineEdit
will remove the focus from the previous widget. If you want to ensure that the QLineEdit
always receives focus, you may need to call setFocus()
at an appropriate time, such as when the application starts or when a specific event occurs.