event_callbacks
Event Callbacks
Events are called with the arguments self,msg
Global msg properties
All event callbacks will contain these properties in msg, alongside their element-specific properties.
dx
Distance in pixels the mouse moved on the x axis this frame
dy
Distance in pixels the mouse moved on the y axis this frame
mb
Mouse buttons currently held down, as a bitfield. See mouse() for more info.
mx
Position of mouse on x axis relative to this element
my
Position of mouse on y axis relative to this element
has_pointer
True if the mouse is currently hovering this element. Useful for mouseover effects.