How do I distinguish between Clicked and Pressed?
What does Released mean?
Pressed: event is generated when you push down the mouse button
Released: event is generated when you release the mouse button (which has been pressed down before)
Clicked: event is generated when a mouse button Pressed & Released.
With these functions you can create a snap-switch for example:
when you press the button, the light will switch off / the music stop / etc , when you release it, light switches back on / the music starts again etc.