---
title: dispatchDigitizerTouchEvent
framework: hiddriverkit
role: symbol
role_heading: Instance Method
path: hiddriverkit/iouserhideventservice/dispatchdigitizertouchevent
---

# dispatchDigitizerTouchEvent

Dispatches a digitizer touch event to the system.

## Declaration

```occ
virtual kern_return_t dispatchDigitizerTouchEvent(uint64_t timeStamp, IOHIDDigitizerTouchData *touchData, uint32_t touchDataCount);
```

## Parameters

- `timeStamp`: The timestamp of the event. Use the timestamp of the report element that is the source of the event.
- `touchData`: An array of structures containing the data for the individual touches. For more information, see doc://com.apple.hiddriverkit/documentation/HIDDriverKit/IOHIDDigitizerTouchData.
- `touchDataCount`: The number of structures in the touchData parameter.

## Return Value

Return Value kIOReturnSuccess on success, or another value if an error occurs. See Error Codes.

## Discussion

Discussion Call this method from your event service to dispatch a touch event to the system. Typically, you call this method when handling a report from the device, after you determine that the event originated from a touchscreen or touch pad.

## See Also

### Dispatching Events to the System

- [dispatchDigitizerStylusEvent](hiddriverkit/iouserhideventservice/dispatchdigitizerstylusevent.md)