Way to detect if IE is installed?

[Andre Garzia]

Just fetched from macScripter.net

ell application "Finder"
     try
        if exists application file id "MSIE" then
           set iePath to application file id "MSIE"
           display dialog ("IE Located at: " & return & iePath & "") as 
string
        end if
     on error --> In case it's not found
        display dialog "Couldn't find IE!"
     end try
  end tell

you can use it to find other apps as well, just change the creator 
code. AppleScript can be fun!
cheers
andre


On Aug 10, 2004, at 8:44 PM, Greg Hall wrote:

> I recall from using RealBasic in the past that there is some AppleEvent
> you can execute that locates a program based on its creator code. I 
> think
> there is some way to enter this into Script Editor, but I forget what 
> the
> command is.
>
> This would enable you to find any copy of IE on the users system
> regardless of where it is installed. In fact, the creator code is all 
> you
> need to tell the program what to do, if you're trying to control IE 
> from
> RR. Effectively, you don't actually know where the copy of IE is
> installed, and you don't need to - you can  launch and control it 
> without
> knowing where it is.
>
> I don't know if it is possible just to detect the presence of IE, but 
> is
> possible to try the event that launches it, and if it fails, the user
> doesn't have it.
>
> Below is some code I used in RealBasic to launch Graphic Converter if 
> it
> isn't already running. One issue is that once you launch an app with an
> AppleEvent, if you try to tell the app to do something before it has
> finished launching, the event will fail. Unfortunately, there is no 
> event
> to find out if the app has finished launching.
>
> What my code does is wait for GraphicConverter to launch by trying an
> AppleEvent that reports how many windows GraphicConverter has open. 
> This
> event will fail unless GraphicConverter is finished loading an has
> displayed its UI. So the program simply continuously tries executing 
> the
> AppleEvent until it is successful.
>
> IE should support the same event for how many windows are open, so the
> idea shd work.
>
> You would need to adapt this code for RR (I just started using RR
> yesterday, so I have no idea how it supports AppleEvents). This code is
> fairly low-level, in RealBasic you have to specify the event type and
> class and creator, so it may be hard to follow.
>
> ========================================
>   'Wait for Finder to launch GC
>
>   ae = NewAppleEvent("aevt", "odoc", "MACS")
>   obj = GetUniqueIDObjectDescriptor("appf", nil, "GKON")
>   ae.ObjectSpecifierParam("----") = obj
>   if not ae.Send then
>     MsgBox "GraphicConverter is not available."
>     Quit
>   end if
>
>   'Wait until GC is able to report how many windows it has
>   'That way, we know it's ready for events
>
>   ae = NewAppleEvent("core", "getd", "GKON")
>   obj = GetOrdinalObjectDescriptor("cwin", nil, "all ")
>   ae.ObjectSpecifierParam("----") = obj
>   while (not ae.Send)
>   wend
>
>   'Bring myself to front.
>   ae = NewAppleEvent("aevt", "odoc", "MACS")
>   if DebugBuild then
>     obj = GetUniqueIDObjectDescriptor("appf", nil, "RBv2")
>   else
>     obj = GetUniqueIDObjectDescriptor("appf", nil, "Bant")
>   end if
>   ae.ObjectSpecifierParam("----") = obj
>   if not ae.Send then
>     MsgBox "Unable to activate self."
>   end if
> ========================================
>
>> Can anyone tell me if there's a way to detect on Mac OS X if IE is
>> installed,
>> via Revolution?   Since the user could move IE to other locations on 
>> their
>> hard-drive, I can't really detect via file-path.
>> _______________________________________________
>> use-revolution mailing list
>> use-revolution at lists.runrev.com
>> http://lists.runrev.com/mailman/listinfo/use-revolution
>>
>
> ================
> Greg Hall
> greghall at uvic.ca
> ================
> _______________________________________________
> use-revolution mailing list
> use-revolution at lists.runrev.com
> http://lists.runrev.com/mailman/listinfo/use-revolution
>
>
-- 
Andre Alves Garzia  2004  BRAZIL
http://studio.soapdog.org