Checking for a MAPI client (OpenInsight) [Revelation On-Line Wiki]

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{{tag>category:"OpenInsight" author:"Mark B" author:"Donald Bakke" author:"Hank Huizinga" author:"Oystein Reigem" author:"[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]"}}

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==== Checking for a MAPI client (OpenInsight) ====
=== At 31 MAY 2001 02:24:51AM Mark B wrote: ===
 
 
<QUOTE>
I have used the Findwindow function successfully to check if outlook is running, but is it possible to check a system for any mapi client. 

I only want to perform certain functions if there is a mapi client but I don't want to insist on outlook.



Suggestions anyone?
</QUOTE>
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=== At 31 MAY 2001 10:39AM Donald Bakke wrote:  ===

<QUOTE>[i]I have used the Findwindow function successfully to check if outlook is running[/i]



So what was the class that worked for you?



dbakke@srpcs.com

[url=http://www.srpcs.com]SRP Computer Solutions, Inc.[/url]



[img]http://www.srpcs.com/srpicon1.gif[/img]

</QUOTE>

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=== At 31 MAY 2001 11:06AM Hank Huizinga wrote:  ===

<QUOTE>Here is what I use.



Handle=FindWindowByTitle('','Microsoft Outlook':\00\)



FindWindow resides in USER.DLL and the DLL is definition by 

SHORT PASCAL FindWindow( LPVOID, LPCHAR ) As FindWindowByTitle

(DLL Declaration taken from a SPREZZATURA ELECTRONIC NEWSLETTER)

</QUOTE>

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=== At 31 MAY 2001 07:26PM Mark B wrote:  ===

<QUOTE>Yes, the class you provided Don, did work.

Thanks



Now what I am looking for is another function that will look for mapi clients in general, rather than by specific name.



Is there a specific file where mapi functions reside that I can look for or is there something else I should be doing???

</QUOTE>

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=== At 31 MAY 2001 07:54PM Donald Bakke wrote:  ===

<QUOTE>Mark,



I'm not the expert on MAPI in our office, although we have implemented these functions in an application. My initial guess is to call a function that should return an expected value if MAPI is implemented. If you don't get that value then assume no MAPI functions are available.



dbakke@srpcs.com

[url=http://www.srpcs.com]SRP Computer Solutions, Inc.[/url]



[img]http://www.srpcs.com/srpicon1.gif[/img]

</QUOTE>

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=== At 01 JUN 2001 02:49AM Oystein Reigem wrote:  ===

<QUOTE>Hank,



Out of curiosity: Does this work if Outlook's got an open message already? I don't run Outlook myself but assume it does like IE and Word and puts the file name/URL/subject of the current open document/message in the title. So at the time your app looks for a window with the title [i]"Outlook Express"[/i] the title might be [i]"Happy Mother's Day from MP3.com! - Outlook Express"[/i]. Or something. Does it still work?



- Oystein -



</QUOTE>

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=== At 01 JUN 2001 04:38AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Mark,



To check if you've got a MAPI client installed on the workstation you can look at the WIN.INI file for the following entry:



Mail

MAPI=1



So, to find out do this:



declare function GetProfileString



result=str( \00\, 16 )

resultLen=GetProfileString( "Mail":\00\, "MAPI":\00\,"0":\00\, result, len( result ) )



if ( result1,\00\ )=1 then

   * // MAPI is installed 

end else

   * // whatever

end



You may have to prototype the GetProfileString() call as I'm not sure if it's already prototypes in a clean OI system.  Look in the DLL_KERNEL record in SYSPROCS. If it's not there add the following line, save and run declare_fcns() to create the DLL stub.



USHORT PASCAL GetProfileString( LPCHAR, LPCHAR, LPCHAR, LPCHAR, SHORT )



[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.jpg[/img]

</QUOTE>

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=== At 01 JUN 2001 08:30AM Donald Bakke wrote:  ===

<QUOTE>Mark,



Just a slight correction on Sprezz's response. It should be [i]GetPrivateProfileString[/i], not [i]GetProfileString[/i]. Also, it should already be prototyped because OI's PrintSetup window and other internal routines use this function regularly.



dbakke@srpcs.com

[url=http://www.srpcs.com]SRP Computer Solutions, Inc.[/url]



[img]http://www.srpcs.com/srpicon1.gif[/img]

</QUOTE>

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=== At 04 JUN 2001 03:19AM Mark B wrote:  ===

<QUOTE>Thanks for the help guys.



I now have two more questions.

1/ I believe GetPrivateProfileString should have one more LpChar after

the short parameter.  Does anyone know what this should be.



2/ I passed \00\ in this position and result1,\00\ returned 0 even though I have outlook installed.  ResultLen returned 1.  Does this indicate success or failure for this function?

</QUOTE>

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=== At 04 JUN 2001 11:10AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Mark



[i]1/ I believe GetPrivateProfileString should have one more LpChar after the short parameter. Does anyone know what this should be.[/i]



The name of the INI file you want to read from.  GetProfileString() only uses WIN.INI which is why it's not necessary to pass it.



[i]2/ I passed \00\ in this position and result1,\00\ returned 0 even though I have outlook installed. ResultLen returned 1. Does this indicate success or failure for this function?[/i]



The function "succeeded" and returned your default entry for a guess.  Do you have a MAPI=1 setting in your WIN.INI file?



[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.jpg[/img]



</QUOTE>

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=== At 04 JUN 2001 11:46AM Donald Bakke wrote:  ===

<QUOTE>For the record, I stand corrected. Sprezz's function does exist and I wasn't aware of it.



dbakke@srpcs.com

[url=http://www.srpcs.com]SRP Computer Solutions, Inc.[/url]



[img]http://www.srpcs.com/srpicon1.gif[/img]

</QUOTE>

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=== At 04 JUN 2001 07:52PM Mark B wrote:  ===

<QUOTE>Thanks again.



I passed win.ini as the filename and the function succeeded.

Yes I do have MAPI=1 in my win.ini file



One more problem though, trying to add GetProfileString to the DLL_KERNEL record, I was unable to run declare_fcns().  "The object code is missing" was the reason given.  I imagine it is more likely that I am missing something.



Any suggestions?



I am happy to use GetPrivateProfileString but curiosity gets the better of me.

</QUOTE>

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=== At 04 JUN 2001 07:57PM Mark B wrote:  ===

<QUOTE>Disregard my last.



I sorted it out.  I was just missing common sense for a few minutes...

</QUOTE>

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=== At 06 JUN 2001 10:00AM Hank Huizinga wrote:  ===

<QUOTE>With Outlook running and the Appserver folder picked in my inbox, there are two Outlook window windows.  The first with class rctrl_renwnd32 and title AppServer - Microsoft Outlook and the second with class mspim_wnd32 and title Microsoft Outlook.

</QUOTE>

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=== At 06 JUN 2001 05:05PM Oystein Reigem wrote:  ===

<QUOTE>Hank,



Right. So it doesn't matter if you can find the "AppServer - Microsoft Outlook" window by the title "Microsoft Outlook" or not, because there's always a window with just "Microsoft Outlook" as its title.



Btw - is it the way you describe with every version of Windows and Outlook? Or can there be versions where you might get one window titled "AppServer - Microsoft Outlook" and my question matters after all?



- Oystein -



</QUOTE>


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