MOTION_CB
Action generated when the mouse moves.
Callback
int function(Ihandle *ih, int x, int y, char *status);
ih: identifier of the element that activated the
event.
x, y: position in the canvas where the
event has occurred, in pixels.
status: status of mouse buttons and certain keyboard
keys at the moment the event was generated. The same macros used for BUTTON_CB can be used for this
status.
Notes
Between press and release, all mouse events are redirected only to this control, even if the cursor moves outside the element. So the BUTTON_CB callback when released and the MOTION_CB callback can be called with coordinates outside the element rectangle.