the fourth modifier key
the first mouse button (usually the left button).
the second mouse button (usually the right button).
the third mouse button (usually the mouse wheel button or middle button).
the fourth mouse button (typically the "Back" button).
the fifth mouse button (typically the "forward" button).
the Control key.
the Hyper modifier
A mask covering all entries in #GdkModifierType.
the Meta modifier
the Shift key.
the Super modifier
the Meta modifier
Flags to indicate the state of modifier keys and mouse buttons in events.
Typical modifier keys are Shift, Control, Meta, Super, Hyper, Alt, Compose, Apple, CapsLock or ShiftLock.