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Support Center » Knowledgebase » INM PDF Xtra for Authorware » How to detect the version of Acrobat / Reader installed
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 How to detect the version of Acrobat / Reader installed
Product:Platform:Area:Version:
PDF Xtra for Authorware Windows, Macintosh Code Sample 7.x

Summary

Due to the differences in the way Acrobat and Reader behave from one version to another, it is sometimes desirable for an Authorware piece to detect which version the user has installed and then take appropriate action.For instance, if there is no Acrobat or Reader installed or the version is too old, the piece could alert the user to go to the appropriate URL and download the most recent version, or a version of Reader can be run from CD.

Solutions

The global method PDF_AcrobatInfo() returns a list of property lists containing the name, version number and path, for all Adobe Acrobat or Reader applications installed on the user's computer (and the Preview application on Mac OS X).

You can then check for a specific version of Adobe Acrobat or Reader and launch the installed application from that path, or take another action if the appropriate application is not in the list.

Example

--This code checks to see if a valid version of Adobe Reader or Acrobat is intalled
-- and then branches to the appropriate icon in the flowline.

AcrobatInfo := PDF_AcrobatInfo()
-- returned list looks like this:
-- [[#appname: "Acrobat", #version: "7.0", #path: "C:\Program Files\Adobe\Acrobat 7.0\Acrobat\Acrobat.exe"]]

Done := FALSE
OK_TO_Display_PDF := FALSE
i := 1
NumItems := ListCount(AcrobatInfo)
repeat while (Done <> TRUE) & (i <= NumItems)
     Item := ValueAtIndex(AcrobatInfo, i)
     app:= ValueAtIndex(Item, 1)
     if (app = "Reader") | (app = "Acrobat") then
          appver := ValueAtIndex(Item, 2)
          ver := SubStr(appver, 1,1)
               if (ver = "5") | (ver = "6") | (ver = "7") then
               -- prevent false positives by checking the path
               appPath := ValueAtIndex(Item, 3)
               if appPath <> "" then
                    OK_To_Display_PDF := TRUE
                    Done := TRUE -- exit loop and launch the version
                end if
          end if
     end if
     i := i + 1
end repeat
if (OK_To_Display_PDF = TRUE) then
     Goto (IconID(@"LaunchViewer") -- launch the version found
else
     -- warn the user to install Reader
   Goto (IconID(@"InstallReader")
end if

 



Article Details
Article ID: 77
Created On: 26 Sep 2006 12:03 PM

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