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