is invoked when a mouse button has been 圧力(をかける)d on a window.
Returns
When 誤った is returned the other handlers are called and a
に引き続いて 扱うing of the event by the 放送者 takes place.
さもなければ, when true is returned, no other handler will be
called and the 放送者 will take no その上の 活動/戦闘s
regarding the event.
is invoked when a mouse button has been 解放(する)d on a window.
Returns
When 誤った is returned the other handlers are called and a
に引き続いて 扱うing of the event by the 放送者 takes place.
さもなければ, when true is returned, no other handler will be
called and the 放送者 will take no その上の 活動/戦闘s
regarding the event.