flash 如何获取当前鼠标位置的RGB值

myphoto = new flash.display.BitmapData(Stage.width, Stage.height);
myphoto .draw(_root);
mc1.onRelease = function() {
var onColor:String = myphoto .getPixel(_root._xmouse, _root._ymouse).toString(16).toUpperCase();
trace(onColor)
};

var selectedColor;
function CreatecolorTable(colorSelector, onClickOK){
    colorSelector.style.width=300;
    colorSelector.style.cursor="hand";
    var oTable=document.createElement("table");
    oTable.style.cursor="hand";
    with(oTable){border=0;cellspacing=0;cellpadding=0;}
    colorSelector.appendChild(oTable);
    var colorRes=document.createElement("div");
    colorRes.id="colorRes";
    var btnOK=document.createElement("button");
    btnOK.style.width=100;
    btnOK.innerText="OK";
    btnOK.onclick=function(){
        resColor=selectedColor;
        colorSelector.selectedColor=selectedColor;
        colorSelector.blur();
        colorSelector.style.display="none";
    };
    colorRes.appendChild(btnOK);
    var btnCancel=document.createElement("button");
    btnCancel.style.width=100;
    btnCancel.innerText="Cancel";
    btnCancel.onclick=function(){
        resColor=null;
        colorSelector.selectedColor=selectedColor;
        colorSelector.blur();
        colorSelector.style.display="none";
    };
    colorRes.appendChild(btnCancel);
    colorSelector.appendChild(colorRes);
    // Create the base colors array.
    var aColors = ['00','33','66','99','cc','ff'] ;
    // This function combines two ranges of three values from the color array into a row.
    function AppendColorRow(rangeA, rangeB){
        for(var i=rangeA;i<rangeA+3;i++){
            var oRow=oTable.insertRow(-1);
            for(var j=rangeB;j<rangeB+3;j++){
                for (var n=0;n<6;n++){
                    AppendColorCell(oRow, '#'+aColors[j]+aColors[n]+aColors[i]);
                }
            }
        }
    }
    // This function create a single color cell in the color table.
    function AppendColorCell(targetRow, color){
        var oCell=targetRow.insertCell(-1);
        oCell.style.height=15;oCell.style.width=15;
        oCell.bgColor=color;

        oCell.onfocus=function(){
            this.style.width="13px";
            this.style.height="13px";
            this.style.border="1px solid #ff0000";
        }
        oCell.onblur=function(){
            this.style.border="0px";
            this.style.width="15px";
            this.style.height="15px";
        }
        oCell.onclick=function(){
            selectedColor=this.bgColor;
        }
    }
    AppendColorRow(0, 0);
    AppendColorRow(3, 0);
    AppendColorRow(0, 3);
    AppendColorRow(3, 3);
    // Create the last row.
    var oRow=oTable.insertRow(-1);
    // Create the gray scale colors cells.
    for(var n=0;n<256;n+=15){
        var cc=n.toString(16);
        cc=(cc.length==2?cc:"0"+cc);
        AppendColorCell(oRow, '#'+cc+cc+cc);
    }
}
function colorMinus(color){
    var r=(255-parseInt("0x"+color.substr(1,2))).toString(16);
    r=(r.length==1?"0"+r:r);
    var g=(255-parseInt("0x"+color.substr(3,2))).toString(16);
    g=(g.length==1?"0"+g:g);
    var b=(255-parseInt("0x"+color.substr(5,2))).toString(16);
    b=(b.length==1?"0"+b:b);
    return "#"+r+g+b;
}

补充：flash教程,As3.0