- Qt 5.15
- Qt Sensors
- C++ Classes
- QLidReading
- Qt 5.15.18 Reference Documentation

# QLidReading Class

The QLidReading class holds readings from the Lid sensor. More...

Header: | #include <QLidReading>
qmake: | QT += sensors
Since: | Qt 5.9
Inherits: | QSensorReading

This class was introduced in Qt 5.9.

- List of all members, including inherited members

## Properties

- backLidClosed : const bool
- frontLidClosed : const bool

## Public Functions

bool | backLidClosed() const
bool | frontLidClosed() const
void | setBackLidClosed(bool closed)
void | setFrontLidClosed(bool closed)

## Detailed Description

A normal laptop has what we call a front lid.

If the laptop can be converted to a tablet by rotating or closing the lid where the display is out, this is known as a back lid.

#### QLidReading Units

The Lid sensor can detect if a device's lid is closed or not. A lid can be a laptop, a laptop that converts to a tablet, or even a cover for a tablet or phone.

## Property Documentation

### backLidClosed : const bool

This property holds a value indicating whether the back lid is closed. A back lid can be when a convertable laptop is closed into to tablet mode without keyboard.

Access functions:

bool | backLidClosed() const

See also QLidReading Units.

### frontLidClosed : const bool

This property holds a value indicating whether the front lid is closed. A front lid would be a normal laptop lid.

Access functions:

bool | frontLidClosed() const

See also QLidReading Units.

## Member Function Documentation

### void QLidReading::setBackLidClosed(bool closed)

Sets the backLidClosed value to closed.

See also backLidClosed().

### void QLidReading::setFrontLidClosed(bool closed)

Sets the frontLidClosed value to closed.

See also frontLidClosed().