# OHOS::KeyEvent - [Overview](#section628384899165635) - [Summary](#section1291846480165635) - [Public Member Functions](#pub-methods) ## **Overview** **Related Modules:** [Graphic](Graphic.md) **Description:** Defines a key event, which indicates that a physical button is pressed or released. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Public Member Functions

Function

Description

KeyEvent (uint16_t keyId, uint16_t state)

A constructor used to create a KeyEvent instance.

~KeyEvent ()

A destructor used to delete the KeyEvent instance.

GetKeyId () const

uint16_t

Obtains the key ID.

GetState () const

uint16_t

Obtains the key state.

Event ()

A default constructor used to create an Event instance.

Event (const Point &curPos)

A constructor used to create an Event instance.

~Event ()

virtual

A destructor used to delete the Event instance.

GetCurrentPos () const

const Point &

Obtains the position where an event occurs.

GetTimeStamp () const

const TimeType &

Obtains the timestamp when an event occurs.

SetTimeStamp (const TimeType &timeStamp)

void

Sets the timestamp when an event occurs.

operator new (size_t size)

void *

Overrides the new function.

operator delete (void *p)

void

Overrides the delete function.