Flex提供了一個特殊的類FlexPrintJob來列印Flex對象。

• FlexPrintJob可用於列印一個或多個Flex對象，如窗體或VBox容器。

• FlexPrintJob列印對象及其包含的所有對象。

• 對象可以是顯示界面的全部或部分。

• 對象可以是專門爲列印格式化數據的組件。

• FlexPrintJob類允許您縮放輸出以適合頁面。

• FlexPrintJob類自動使用多個頁面列印不適合單個頁面的對象。

• FlexPrintJob類使作業系統顯示列印對話框。如果沒有用戶操作，則無法列印。

Prepare and send a print job

您可以通過準備和發送列印作業來列印輸出。讓我們創建FlexPrintJob類的實例

var printJob:FlexPrintJob = new FlexPrintJob();

啓動列印作業

printJob.start(); 

Flex將使作業系統顯示一個列印對話框。將一個或多個對象添加到列印作業並指定如何縮放它們

printJob.addObject(myObject, FlexPrintJobScaleType.MATCH_WIDTH); 

每個對象都從一個新頁面開始。將列印作業發送到印表機

printJob.send(); 

Printing Example

<?xml version = "1.0" encoding = "utf-8"?>
<s:Application xmlns:fx = "http://ns.adobe.com/mxml/2009" 
   xmlns:s = "library://ns.adobe.com/flex/spark" 
   xmlns:mx = "library://ns.adobe.com/flex/mx"
   width = "100%" height = "100%"
   minWidth = "500" minHeight = "500" 
   initialize = "application_initializeHandler(event)">
   
   <fx:Style source = "/com/tutorialspoint/client/Style.css" />
   <fx:Script>
     <![CDATA[
         import mx.controls.Alert;
         import mx.events.FlexEvent;
         import mx.printing.FlexPrintJob;
         import mx.printing.FlexPrintJobScaleType;
         
         protected function btnClickMe_clickHandler(event:MouseEvent):void {
            
            // Create an instance of the FlexPrintJob class.
            var printJob:FlexPrintJob = new FlexPrintJob();
         
            // 啓動列印作業.
            if (printJob.start() != true) return;

            // Add the object to print. Do not scale it.
            printJob.addObject(myDataGrid, FlexPrintJobScaleType.NONE);

            // Send the job to the printer.
            printJob.send();
        }

        protected function application_initializeHandler(event:FlexEvent):void {
            lblHeader.text = "My Hello World Application";				
        }
     ]]>
   </fx:Script>
   
   <s:BorderContainer width = "500" height = "500" id = "mainContainer" 
      styleName = "container">
      <s:VGroup width = "100%" height = "100%" gap = "50"
         horizontalAlign = "center" 
         verticalAlign = "middle">
         <s:Label id = "lblHeader" fontSize = "40" color = "0x777777" 
            styleName = "heading" />
         
         <mx:DataGrid id = "myDataGrid" width = "300">
            <mx:dataProvider>
               <fx:Object Product = "Flex" Code = "1000" />
               <fx:Object Product = "GWT" Code = "2000" />
               <fx:Object Product = "JAVA" Code = "3000" />
               <fx:Object Product = "JUnit" Code = "4000" />
            </mx:dataProvider>
         </mx:DataGrid>
         
         <s:Button label = "Print Me!" id = "btnClickMe" 
            click = "btnClickMe_clickHandler(event)" 
            styleName = "button" />
      </s:VGroup>	
   </s:BorderContainer>	
</s:Application>

完成所有更改後，讓我們以正常模式編譯並運行應用程式，就像我們在flex-create application一章中所做的那樣。如果您的應用程式一切正常，它將產生以下結果：[聯機試用]

單擊print me按鈕，您可以看到下面顯示的數據網格的列印輸出。