Re: Witango-Talk: Sniffing for the Adobe Acrobat Reader from a webpage? Solved

[Brian Mowers]

To all, (see attached _javascript_ Code)
Thanks to Alan Wolf for the link to get me started on detection of Acrobat reader from a webpage.
I modified some js code to work with Witango (ver 2000). The script will produce a variable @@local$acrobatversion
with the major version number. I needed this for a project so had to do it.

Enjoy.
Brian Mowers

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Brian Mowers
[EMAIL PROTECTED]

<Script>
// Adobe Acrobat Detection  v1.0
// documentation: http://www.dithered.com/javascript/acrobat_detect/index.html
// license: http://creativecommons.org/licenses/by/1.0/
// code by Chris Nott (chris[at]dithered[dot]com)
// modified by Brian Mowers 6-15-2005 To work with Witango Ver 2000 returns a 
local variable acrobatversion with the version Number

var acrobatVersion = 1;
function getAcrobatVersion() {
   var agent = navigator.userAgent.toLowerCase(); 
   
   // NS3+, Opera3+, IE5+ Mac, Safari (support plugin array):  check for 
Acrobat plugin in plugin array
   if (navigator.plugins != null && navigator.plugins.length > 0) {
      for (i=0; i < navigator.plugins.length; i++ ) {
         var plugin = navigator.plugins[i];
         if (plugin.name.indexOf("Adobe Acrobat") > -1) {
            acrobatVersion = parseFloat(plugin.description.substring(30));
        }
      }
   }
   
   // IE4+ Win32:  attempt to create an ActiveX object using VBScript
   else if (agent.indexOf("msie") != -1 && parseInt(navigator.appVersion) >= 4 
&& agent.indexOf("win")!=-1 && agent.indexOf("16bit")==-1) {
      document.write('<scr' + 'ipt language="VBScript"\> \n');
      document.write('on error resume next \n');
      document.write('dim obAcrobat \n');
      document.write('set obAcrobat = CreateObject("PDF.PdfCtrl.5") \n');
      document.write('if IsObject(obAcrobat) then \n');
      document.write('acrobatVersion = 5 \n');
      document.write('else set obAcrobat = CreateObject("PDF.PdfCtrl.1") end if 
\n');
      document.write('if acrobatVersion < 5 and IsObject(obAcrobat) then \n');
      document.write('acrobatVersion = 4 \n');
      document.write('end if');
      document.write('</scr' + 'ipt\> \n');
  }
   // Can't detect in all other cases
   else {
      acrobatVersion = acrobatVersion_DONTKNOW;
   }
   alert('Your Current Acrobat Version is :'+acrobatVersion)
        if (acrobatVersion ==4) {
        <@ASSIGN local$acrobatversion  Value='4'>
   } else if (acrobatVersion ==5){
        <@ASSIGN local$acrobatversion  Value='5'>
   } else if (acrobatVersion ==6){
        <@ASSIGN local$acrobatversion  Value='6'>
   } else if (acrobatVersion ==7){
        <@ASSIGN local$acrobatversion  Value='7'>
   } else if (acrobatVersion > 8){
        <@ASSIGN local$acrobatversion  Value='8'>
   }
        return acrobatVersion;
}
acrobatVersion_DONTKNOW = -1;
</Script>

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