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Getting Exchange calendar info

Posted on 2002-03-06
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Last Modified: 2012-06-27
I want to query someone's calendar (a resource's calendar to be precise) in Exchange qand find out whether he/it will be available for a meeting without opening an Outlook form and looking at it myself. Can this be done?

Thanks,

Rafi
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Question by:rafistern
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eosu earned 200 total points
ID: 6844793
   Dim ol As New Outlook.Application
    Dim ap As AppointmentItem
    Dim fldr As MAPIFolder
    Dim i

    ' collection of all appointments.  order is kinda reversed, earliest meeting ever is last record in count.
    ' means that if i add a meeting for tomorrow, then that is number 1 if I have no meeting scheduled after that.
    Set fldr = ol.GetNamespace("MAPI").GetDefaultFolder(olFolderCalendar)
    For i = 1 To fldr.Items.Count
        Set ap = fldr.Items(i)

' use ap to check start, end, subject etc.
just loop through comparing dates and times to make sure your start/end block does not coincide with their start/end block.  Rem - no need to check any further back than where current meeting end is earlier than your start, provided he has not doubled up on meeting requests - in which cas I have no idea how Outlook reports them.

eosu.
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Author Comment

by:rafistern
ID: 6846708
OK, that worked.

Is there no better way than just looping through all the appointments?
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Author Comment

by:rafistern
ID: 6846710
Also, maybe I didn't make it clear but I want to query somebody else's calendar, not the current user. How about that?
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Expert Comment

by:eosu
ID: 6846898
not sure on querying someone elses calendar...  you would probably have to set up a profile for the other user on your computer and connect to that one.... or maybe, if the calendar information is published to the exchange server, you can query it without the profile but I don't know how.

As far as I am aware, there is no other way than looping through the appointments.  But you don't have to loop through them all... just go backwards until you pass the time your meeting starts.
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Author Comment

by:rafistern
ID: 6854275
This wasn't the answer really, but seeing as it was the only one here are the points.

The real answer is twofold.

1. You can get info about when someone is free/busy using

    Set objTicket = Application.GetNameSpace("MAPI").AddressLists("Global Address List").AddressEntries(<Profile Name>)
    strAvalability = objTicket.GetFreeBusy(<The Date>, <Interval>)

2. You can log onto anyone's calendar by doing:

Set NameSpace = myOlApp.GetNameSpace("MAPI")
NameSpace.Logon <Profile Name>, <Password>, False, False
NameSpace.GetDefaultFolder(olFolderCalendar)

assuming you know their password....

Rafi


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