Flash Button States

傳統的Flash Button 有四種States:
up, down, over, hit

這四種States正式的屬性名稱為

upState, downState, overState, hitTestState

其中比較不一樣的就是 "hit"(hitTestState),
它決定了該按鈕(Button) 接受觸發的範圍

[code snippet]  btn1 is a given button ...

var imgGray1:MovieClip = new imgGray();

var greenCircleShape:Shape = new Shape();
greenCircleShape.graphics.beginFill(0x00ff00);
greenCircleShape.graphics.drawCircle(0, 0, 20);
 
 
btn1.upState= imgGray1;
btn1.overState= imgGray1;
btn1.downState= imgGray1;
btn1.hitTestState= greenCircleShape;