Retrieving Into JavaScript Variable Data from Windows Clipboard

Is it possible in Acrobat JavaScript to pass the contents of the Window's clipboard to a JavaScript variable? Searching around the Internet I found postings stating that the below javascript statement could read the contents of the clipboard into a variable. However, when I try to run it in the Acrobat debugger I get the following error message:

var content = clipboardData.getData("Text");
app.alert(content);
clipboardData is not defined
1:Console:ExecException in line 1 of function top_level, script Console:Exec

clipboardData is not defined
1:Console:Exec
undefined
1

TIA. Egan.