Navigation.eventParseTouchEvent

Retrieve the details of a #GstNavigation touch-down or touch-motion event. Determine which type the event is using gstvideo.navigation.Navigation.eventGetType to retrieve the #GstNavigationEventType.

interface Navigation

static

bool

eventParseTouchEvent

(

gst.event.Event event

out uint identifier

out double x

out double y

out double pressure

)

Parameters

event gst.event.Event: A #GstEvent to inspect.
identifier uint: Pointer to a guint that will receive the identifier unique to this touch point.
x double: Pointer to a gdouble that will receive the x coordinate of the touch event.
y double: Pointer to a gdouble that will receive the y coordinate of the touch event.
pressure double: Pointer to a gdouble that will receive the force of the touch event, in the range from 0.0 to 1.0. If pressure data is not available, NaN will be set instead.

Return Value

Type: bool

TRUE if all details could be extracted, otherwise FALSE.