events_get_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 `GdkEvent`
event2	second `GdkEvent`
angle	return location for the relative angle between both events

Returns:

true if the angle could be calculated.