FLASH actionscript圆角遮罩？

如何使用actionscript在4个角创建一个5像素的圆形遮罩来动态遮罩我的flash电影？（角落应透明，其余部分应可见）

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谢谢

可能就这么简单。在Flash中制作一个圆角矩形，并将其命名为myMovie

面具

绘制圆角矩形以在舞台上制作电影

//550x400 stage
var roundRect:Shape = new Shape();
roundRect.graphics.beginFill(0x006600, 1);
//stage width, stage height, width of rectangle, height of rectangle, ellipse width, ellipse height
roundRect.graphics.drawRoundRect(125, 75, 300, 200, 25, 25);
addChild(roundRect);
//mask
mask = roundRect;

将面具和电影放在舞台上“带有类名Rr和Ym的符号”

//550x400 stage
//put mask on stage
var mm:MovieClip = new Rr;
addChild(mm);
//position on stage
mm.x = stage.stageWidth/4;
mm.y = stage.stageWidth/4;
//mask
mask = mm;
//put movie on stage
var yourClip:MovieClip = new Ym;
addChild(yourClip);
//position on stage
yourClip.x = stage.stageWidth/4;
yourClip.y = stage.stageWidth/4;

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可能就这么简单。在Flash中制作一个圆角矩形，并将其命名为myMovie

面具

绘制圆角矩形以在舞台上制作电影

//550x400 stage
var roundRect:Shape = new Shape();
roundRect.graphics.beginFill(0x006600, 1);
//stage width, stage height, width of rectangle, height of rectangle, ellipse width, ellipse height
roundRect.graphics.drawRoundRect(125, 75, 300, 200, 25, 25);
addChild(roundRect);
//mask
mask = roundRect;

将面具和电影放在舞台上“带有类名Rr和Ym的符号”

//550x400 stage
//put mask on stage
var mm:MovieClip = new Rr;
addChild(mm);
//position on stage
mm.x = stage.stageWidth/4;
mm.y = stage.stageWidth/4;
//mask
mask = mm;
//put movie on stage
var yourClip:MovieClip = new Ym;
addChild(yourClip);
//position on stage
yourClip.x = stage.stageWidth/4;
yourClip.y = stage.stageWidth/4;

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你只需要一个圆角矩形遮罩吗？我不明白你在说些什么。遮罩区域中的所有东西难道都不可见吗？你只需要一个圆角矩形遮罩吗？我不明白你在说些什么。难道蒙面区域的所有东西都不可见吗？