get_angle


Description:

[ CCode ( cname = "gdk_events_get_angle" ) ]
public static bool get_angle (Event event1, 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 `GdkEvent`

event2

second `GdkEvent`

angle

return location for the relative angle between both events

Returns:

true if the angle could be calculated.