XkbGetKeyBehaviors sends a request to the server to obtain the behaviors for
num keys on the keyboard starting with the key whose keycode is
first. It waits for a reply and returns the behaviors in the
server->behaviors field of
xkb. If successful,
XkbGetKeyBehaviors returns Success.
server map in the
xkb parameter has not been allocated,
XkbGetKeyBehaviors allocates and initializes it before obtaining the actions.
If the server does not have a compatible version of Xkb, or the Xkb extension has not been
XkbGetKeyBehaviors returns BadAccess. If
num is less than 1 or greater than XkbMaxKeyCount,
XkbGetKeyBehaviors returns BadValue. If any allocation errors occur,
XkbGetKeyBehaviors returns BadAlloc.