AS3打印问题，空白打印后SWF或取消 [英] As3 printing problem, blanks swf after print or cancel

问题描述

确定回在AS3印刷的另一个问题

ok back at another issues in as3 printing

//Function to print entire screen
function printFunction(event:MouseEvent):void
{
    var myPrintJob:PrintJob = new PrintJob();
    var oldScaleX:Number = root.scaleX;
    var oldScaleY:Number = root.scaleY;

    //Start the print job
    myPrintJob.start();

    //Figure out the new scale
    var newScaleX:Number = myPrintJob.paperWidth/root.width;
    var newScaleY:Number = myPrintJob.paperHeight/root.height;

    //Shrink in both the X and Y directions by the same amount (keep the same ratio)
    if(newScaleX < newScaleY)
        newScaleY = newScaleX;
    else
        newScaleX = newScaleY;

    root.scaleX = newScaleX;
    root.scaleY = newScaleY;

    //Print the page
    myPrintJob.addPage(Sprite(root));
    myPrintJob.send();

    //Reset the scale to the old values
    root.scaleX = oldScaleX;
    root.scaleY = oldScaleY;
}

我似乎发现了什么那这个真的很有帮助。当我点击取消在打印对话框中，我得到下面的错误，并清空了我的SWF。

I cant seem to find anything thats really helpful with this. When i click cancel on the print dialog box, i get error below and it blanks out my swf.

错误包括，每当我试图打印并取消它，甚至当我这样做成功地打印，SWF一片空白。

The error consists, that whenever i try to print and cancel it, or even when i do succesfully print, swf goes blank.

推荐答案

有两种打印类型，矢量和位图。因为你只是路过的根，它会尝试打印的一切作为载体。但你可能会看到的是，在某些版本的Flash播放器在某些操作系统矢量打印不起作用。我通常创建要DisplayObject的位图快照和打印本。

There are two printing types, vector and bitmap. Because you are just passing in the root it will try to print everything as a vector. But what you might be seeing is that in some versions of the Flash player on some operating systems vector printing doesn't work. I normally create a bitmap snapshot of the displayobject that you want and print this.

VAR的位图数据：的BitmapData =新的BitmapData（root.width，root.height）; 的BitmapData.draw（根）; VAR printThis：位图=新位图（位图数据）;

var bitmapData:BitmapData = new BitmapData(root.width, root.height); bitmapData.draw(root); var printThis:Bitmap = new Bitmap(bitmapData);

请确保你把它添加到舞台上打印，以便在此之前，preVIEW作品和心灵的最大的位图数据的大小。当您完成删除该位图。

Make sure you add it to the stage before you print so that preview works and mind the max bitmap data size. When you are finished delete the bitmap.

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