# Click Event
A click event is triggered when a component is clicked.
> **NOTE**
>
> This event is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
## Required Permissions
None
## Events
| Name | Bubbling Supported | Description |
| -------- | -------- | -------- |
| onClick(callback: (event?: ClickEvent) => void) | No | Called when a click event occurs. For details about the event parameters, see [ClickEvent](#clickevent). |
## ClickEvent
| Name | Type | Description |
| -------- | -------- | -------- |
| screenX | number | X coordinate of the click relative to the left edge of the screen. |
| screenY | number | Y coordinate of the click relative to the upper edge of the screen. |
| x | number | X coordinate of the click relative to the left edge of the component being clicked. |
| y | number | Y coordinate of the click relative to the upper edge of the component being clicked. |
| target8+ | [EventTarget](#eventtarget8) | Target element that is clicked. |
| timestamp | number | Timestamp of the event. |
## EventTarget8+
| Name | Type | Description |
| -------- | -------- | -------- |
| area | [Area](#area8) | Area information of the target element.|
## Area8+
| Name | Type | Description |
| -------- | -------- | -------- |
| width | number | Width of the target element, in vp. |
| height | number | Height of the target element, in vp. |
| position | [Position](#position8) | Position of the upper left corner of the target element relative to that of the parent element. |
| globalPosition | [Position](#position8) | Position of the upper left corner of the target element relative to that of the page. |
## Position8+
| Name | Type | Description |
| -------- | -------- | -------- |
| x | number | X-coordinate, in vp. |
| y | number | Y-coordinate, in vp. |
## Example
```ts
// xxx.ets
@Entry
@Component
struct ClickExample {
@State text: string = ''
build() {
Column() {
Button('Click').backgroundColor(0x2788D9).width(100).height(40)
.onClick((event: ClickEvent) => {
console.info(this.text = 'Click Point:' + '\n screenX:' + event.screenX + '\n screenY:' + event.screenY
+ '\n x:' + event.x + '\n y:' + event.y + '\ntarget:' + '\n component globalPos:('
+ event.target.area.globalPosition.x + ',' + event.target.area.globalPosition.y + ')\n width:'
+ event.target.area.width + '\n height:' + event.target.area.height)
})
Text(this.text).padding(15)
}.height(350).width('100%').padding(10)
}
}
```
