eventsGetAngle
fn
bool eventsGetAngle(gdk.event.Event event1, gdk.event.Event event2, out double angle)Returns the relative angle from event1 to event2.
The relative angle is the angle between the X axis and the line through both events' positions. The rotation direction for positive angles is from the positive X axis towards the positive Y axis.
This assumes that both events have X/Y information. If not, this function returns false.
Parameters
event1 | first [gdk.event.Event] |
event2 | second [gdk.event.Event] |
angle | return location for the relative angle between both events |
Returns
true if the angle could be calculated.