gre.touch


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`gre.touch`

If a mouse/touchscreen presses and then releases on the same control then a touch event will be generated. This is useful for activating button style elements. If the release is found to intersect a different control then a touch event is not generated.

	Note
	This event is synthetically generated by the framework based on incoming `gre.press` and `gre.release` events. Event redirectors should generally not include this event in their list of redirection events.

Data

uint32_t    button
uint32_t    timestamp
int16_t     subtype
int16_t     x
int16_t     y
int16_t     z
int16_t     id
int16_t     spare

Where:

button

GR_EVENT_BTN_LEFT - 0x0001: if this is a touchscreen then the button is always left

GR_EVENT_BTN_MIDDLE - 0x0002

GR_EVENT_BTN_RIGHT - 0x0004

timestamp

This is an event timestamp in milliseconds since application start

subtype

GR_EVENT_RELEASE_IN

GR_EVENT_RELEASE_OUT

z

This parameter is dependent on the availability of z- co-ordinate information

id

This parameter is used to track multi-touch presses as they come in

spare

This is padding and should be 0