c#: exporting swf object as image to Word
- by Lynn
Hello
in my Asp.net web page (C# on backend) I use a Repeater, whose items consist of a title and a Flex chart (embedded .swf file). I am trying to export the contents of the Repeater to a Word document. My problem is to convert the SWF files into images and pass it on to the Word document.
The swf object has a public function which returns a byteArray representation of itself (public function grabScreen():ByteArray), but I do not know how to call it directly from c#.
I have access to the mxml files, so I can make modifications to the swf files, if needed.
The code is shown below, and your help is appreciated :)
.aspx
<asp:Button ID="Button1" runat="server" text="export to Word" onclick="print2"/>
<asp:Repeater ID="rptrQuestions" runat="server" OnItemDataBound="rptrQuestions_ItemDataBound" >
...
<ItemTemplate>
<tr>
<td>
<div align="center">
<asp:Label class="text" Text='<%#DataBinder.Eval(Container.DataItem, "Question_title")%>' runat="server" ID="lbl_title" NAME="lbl_title"/>
<br>
</div>
</td>
</tr>
<tr><td>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="result_survey" width="100%" height="100%" codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="result_survey.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#ffffff" />
<param name="allowScriptAccess" value="sameDomain" />
<param name="flashvars" value='<%#DataBinder.Eval(Container.DataItem, "rank_order")%>' />
<embed src="result_survey.swf?rankOrder='<%#DataBinder.Eval(Container.DataItem, "rank_order")%>' quality="high" bgcolor="#ffffff" width="100%" height="100%"
name="result_survey" align="middle" play="true" loop="false" allowscriptaccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</td></tr>
</ItemTemplate>
</asp:Repeater>
c#
protected void print2(object sender, EventArgs e)
{
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Charset = "";
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF7;
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.ContentType = "application/msword";
HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + "Report.doc");
EnableViewState = false;
System.IO.StringWriter sw = new System.IO.StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
// Here I render the Repeater
foreach (RepeaterItem row in rptrQuestions.Items)
{
row.RenderControl(htw);
}
StringBuilder sb1 = new StringBuilder();
sb1 = sb1.Append("<table>" + sw.ToString() + "</table>");
HttpContext.Current.Response.Write(sb1.ToString());
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();
}
.mxml
//##################################################
// grabScreen (return image representation of the SWF movie (snapshot)
//######################################################
public function grabScreen() : ByteArray
{
return ImageSnapshot.captureImage( boxMain, 0, new PNGEncoder() ).data();
}
