Re: Outlook API. Where to find it??? - C / C++ / MFC Discussion Boards

MutuMuru1-Jul-04 22:57

1-Jul-04 22:57

We have been developing a VC++ 6.0 application in Windows NT service Pack 6a OS, Which interfaces with Data collection

Hardwares(mounted in ISA/PCI slot of the computer) through their DLL's.

We have the following function call problem as follows:

Our application header files are defined as ollows:

***********************************Our application Header
file********************

#include "DLLHeader.h"// Dll definitions are included

Class OurClass
{

public:

void (*InitBoardfunction) (WORD Addr, WORD IRQNo);
WORDBOOL (*BoardIsOkfunction) (void);
: :
: : :
: : :
: : :
void (*Setfunction) (WORD set);
BOOL GetDLLPointers(void* ptr);
BOOL InitDAQ(void);

};
***********************************Our application Header
file********************

Our application Implementation files are defined as follows:

***********************************Our application Implementation
file********************

// This function gets function pointers of the DLL.
BOOL OurClass::GetDLLPointers(void* ptr)
{
HINSTANCE handle;
CString ErrMsg;
CString ErrTitle;
COurappDoc* pDoc;

pDoc = (COurapp*)ptr;

SetCurrentDirectory(pDoc-SetupEnviron.OurappInstalledDir); // Sets
the current Directory as the application Installed Dir.

handle = AfxLoadLibrary(_T"Board.dll"));

InitBoardfunction = (void(__stdcall*)(WORD,WORD)) ::GetProcAddress(handle,"InitBoardfunction");
ASSERT(InitBoardfunction != NULL);
BoardIsOkfunction = (WORDBOOL(__stdcall*)(void))
::GetProcAddress(handle,"BoardIsOkfunction");
ASSERT(BoardIsOkfunction != NULL);
: : :
: : :
: : :
: : :
Setfunction = (void(__stdcall*)(WORD)) ::GetProcAddress(handle,"Setfunction");
ASSERT(Setfunction != NULL);

return TRUE;
}
// DLL functions are getting called in this function.
BOOL OurClass::InitDAQ(void)
{
CString ErrMsg;
CString ErrTitle;

InitBoardfunction(0x300,5); // First DLL function call
: : :
: : :
: : :
: : :

Setfunction(1); // application crashes here.
}

About 8000 lines of "First-chance exception in Simple.exe (KERNEL32.DLL):
0x0EEFFACE: (no name)." messages are getting printed in Debug window,
after executing the first DLL function call (InitBoardfunction(0x300,5)) in our
application, While I am in the debug mode. After calling couple of other
DLL functions, Setfunction(1) is getting called in our application.

After executing the Setfunction(1) function call in our application,
my application crashes with the following message in the Debug mode.
"File: i386\chkesp.c
The value of ESP was not saved across a function call .This is usually a
result of calling a function declared with one calling convention with a
function pointer declared with a different calling convention."

I opened up Registers window, Disassembly window while debugging the sample code. The assembly code is as attached for

the "Setfunction(1)" function call

004036D9 8B F4 mov esi,esp
004036DB 6A 01 push 1
004036DD 8B 45 FC mov eax,dword ptr [ebp-4]
004036E0 FF 50 1C call dword ptr [eax+1Ch] //ESI register values are getting changed after this

function call.
004036E3 3B F4 cmp esi,esp
004036E5 E8 86 BF 01 00 call __chkesp (0041f670)

ESI register value is getting changed from 0012F82C to 0012F94C, after the function is getting called.

Can anyone help me by answering the following:

1. What are all the possible reasons for changes in ESI register value. Is there a problem with DLL. If it is, What

might be the problem in DLL & Please suggest what to Do for the DLL supplier to solve this problem.
2. The same typical code is working without any problem in Borland C++ Compiler. Is there any settings in VC++ to be done

to avoid this Crash.
3. How to avoid "First-chance exception in Simple.exe (KERNEL32.DLL): 0x0EEFFACE: (no name)." messages(about 8000+) in

the debug window. This message is getting printed when you call the first DLL function (InitBoardfunction(0x300,5); ) in

our application.

Also Please note that Our application is an existing application & it was working fine without any problem with an Old

DLL supplied by the supplier. Our Hardware supplier did some revisions in the DLL to make it work for both ISA as well as

PCI slot Data Acq Cards. The subject problem started there.

Please note that our application is being compiled with /Gz option as the DLL functions are written in Delphi & exported

by __stdcall function call type

Could you please help me to solve this problem in our application.

Re: function call problem in VC++

Johan Rosengren1-Jul-04 23:29

Johan Rosengren

1-Jul-04 23:29

MutuMuru wrote:
void (*InitBoardfunction) (WORD Addr, WORD IRQNo);
WORDBOOL (*BoardIsOkfunction) (void);
: :
: : :
: : :
: : :
void (*Setfucntion) (WORD set);

Shouldn't you have __stdcall here as well, so:

void (* __stdcall InitBoardfunction) (WORD Addr, WORD IRQNo);

Re: function call problem in VC++

MutuMuru2-Jul-04 0:02

MutuMuru

2-Jul-04 0:02

Thanks for your reply.

I already tried by putting the function declared as you said.

void (* __stdcall InitBoardfunction) (WORD Addr, WORD IRQNo);

But Still the error exists.

Re: function call problem in VC++

Johan Rosengren2-Jul-04 0:21

Johan Rosengren

2-Jul-04 0:21

Hm. The code you showed would give this error. It's also typical when using DLL:s that works with Borland (due to different default calling conventions), and moreover, constistent with the error message.

Have you checked, double-checked and then triple-checked that you have really tested a version with __stdcall in the definition as well? Made a Rebuild All, made sure that the original DLL really uses the new code etc.

This might sound impertinent, but I sat the day before yesterday and debugged the same bad DLL for hours, until I realized that all the changes I made had no effect, the test-app didn't use the newly built ones Smile | :)

Re: function call problem in VC++

MutuMuru2-Jul-04 0:42

MutuMuru

2-Jul-04 0:42

Yes, I checked so many times that the function definition is with __stdcall type only.

Re: function call problem in VC++

Johan Rosengren2-Jul-04 0:46

Johan Rosengren

2-Jul-04 0:46

Could you post the updated code here instead?

Outlook API. Where to find it???

anderslundsgard1-Jul-04 22:51

anderslundsgard

1-Jul-04 22:51

Where can I find the API for MS Outlook 2000? Searched MSDN but know where to read…
I’m heading into automation programming in VC++ and have created wrapper classes (for msoutl9.olb)

_____________________________

...and justice for all

APe

Re: Outlook API. Where to find it???

Mike Beckerleg2-Jul-04 0:19

Mike Beckerleg

2-Jul-04 0:19

The documentation for programming Outlook via C++ is very poor. Try searching MSDN for "Microsoft Office 2000 Language Reference" which gives details of Outlook object model (in VB, but it's better than nothing).

Also try looking in the Knowledge Base for article 196776.

Re: Outlook API. Where to find it???

BlackDice2-Jul-04 2:56

BlackDice

2-Jul-04 2:56

I recently had to do the same thing (retrieving message objects from the user's inbox), and I used two tools: one was doing a google search on words related to what I was trying to do. the other was using the outlook helpfile that should be on your machine 'VBAOUTL9.chm'; that helped me more than anything. If there's anything specific, post it and i'll see if there's a way I can help

If it's broken, I probably did it

bdiamond

Re: Outlook API. Where to find it???

anderslundsgard11-Jul-04 21:31

anderslundsgard

11-Jul-04 21:31

I've manage to created wrapperclasses and starting using automation. (I'm not really sure what it means but anyway).

I manage to run this code:

...<br />
if(!app.CreateDispatch("Outlook.Application"))<br />
    {<br />
        AfxMessageBox("Couldn't start Outlook.");<br />
    }<br />
    else <br />
    {<br />
        app.Quit();//CreateItem( (long) 1 );<br />
    }<br />
//...

and Outlook closes if I have it open. But I don't know how to for e.g. start Ouutlook, create a mailmessage, fill To, Subject and Body and then send it using “this automation stuff”.

Thanks

_____________________________

...and justice for all

APe

Re: Outlook API. Where to find it???

BlackDice12-Jul-04 2:57

BlackDice

12-Jul-04 2:57

well, I never actually sent the messages myself, but here's some code I used to get the messages from the user's inbox and populate the listview I have in my dialog box:

void COtestDlg::PopulateLVW()
{
	MAPIFolder				folderInbox;
	Recipients				recs;
	Recipient					rec;
	_NameSpace				ns;
	_Items						itemsMessages;
	_MailItem					mi;
	_MailItem					mReply;
	_Application			app;  // app is the Outlook 2000 application object
	
	
	try
	{
		// Start Outlook and get Application object...
		if(!app.CreateDispatch("Outlook.Application"))
		{
			AfxMessageBox("Couldn't start Outlook.");
		}
		else
		{
			ns = app.GetNamespace("MAPI");

			COleVariant vt;
			COleVariant vtOptional("");
			COleVariant vtTrue;
			vt.ChangeType(VT_BOOL);
			vt.boolVal = true;
			vt.ChangeType(VT_I2,NULL);

			ns.Logon(vtOptional, vtOptional, vtTrue, vtTrue);
			folderInbox = ns.GetDefaultFolder(6);
			itemsMessages = folderInbox.GetItems();
		

			aMessages = new CMessageItem[itemsMessages.GetCount()];
			for (int x = 0; x < itemsMessages.GetCount(); x++)
			{
				
				mi = itemsMessages.Item(COleVariant((long) x + 1L));//get message from the Inbox
				
				mReply = mi.Reply();	//get Reply MailItem object
				recs = mReply.GetRecipients();	//get recipients collection
				rec = recs.Item(COleVariant((long) 1L)); //only get first recipient
				CString address = rec.GetAddress(); //get email address
			
				aMessages[x].m_strBody = mi.GetBody();
				aMessages[x].m_strEmailAddress = address;
				aMessages[x].m_strEntryID = mi.GetEntryID();
				aMessages[x].m_strHTMLBody = mi.GetHTMLBody();
				aMessages[x].m_strSubject = mi.GetSubject();

				//truncate body and remove carriage returns for listview
				CString strBody = mi.GetBody();
				strBody.Replace("\r\n","  ");
				strBody = strBody.Left(50);
				//put item and subitems in listview
				m_lvwResults.InsertItem(x,address);
				m_lvwResults.SetItemText(x,1,mi.GetSubject());
				m_lvwResults.SetItemText(x,2,strBody);
				m_lvwResults.SetItemData(x,x);
				} //end for (int x = 0; x < itemsMessages.GetCount(); x++)

			CString strCount;
			strCount.Format("%d",m_lvwResults.GetItemCount());
			m_lblCount.SetWindowText(strCount);
			ns.Logoff();
			
		}	//end if(!app.CreateDispatch("Outlook.Application"))
	} //end try
	catch(...)
	{
	AfxMessageBox("There has been an error.",MB_ICONINFORMATION);
	}
	
}

I hope this helps in any way

If it's broken, I probably did it

bdiamond

Re: Outlook API. Where to find it???

anderslundsgard12-Jul-04 3:12

anderslundsgard

12-Jul-04 3:12

THANKS!! Your code made me think a bit Smile | :)

and found out these simple lines to send a message:

_MailItem mail = app.CreateItem( 0 ); // (0 == _MailItem)<br />
mail.SetTo( "blubb@syd.kth.se" );<br />
mail.SetSubject( "Mail from VC++ automation" );<br />
mail.SetBody( "The BODY" );<br />
mail.Send();<br />

but still I'd like to find any MS Outlook C++ Reference somewhere. I googeld but no success.

_____________________________

...and justice for all

APe

where to do the query?

JabraJabra1-Jul-04 22:15

JabraJabra

1-Jul-04 22:15

hi,
i got Doc/View app with database queries.
in which function in the Doc should i do the query?

Avi

Re: where to do the query?

RChin2-Jul-04 0:21

RChin

2-Jul-04 0:21

Avi Laviad wrote:
in which function in the Doc should i do the query?

Qué?
You can place your queries anywhere you like. Whether the appropriate place to put yor DB queries is in the Document, View or even the Application class is up to your program's design.

Maybe you should read up a little bit more on the
Doc/View[^] architecture to help answer your question.

I Dream of Absolute Zero

Polymorphism in C++

gutsyfarid1-Jul-04 21:27

gutsyfarid

1-Jul-04 21:27

PROBLEM
Unable to understand the variation in size of object
All the code is tested under Borland C++ ver 3.1
In borland V3.1 the int takes two bytes
Lets look at the following code

Class base<br />
{<br />
	public:<br />
		int b;<br />
		base()<br />
{}<br />
		virtual void f() {}<br />
		virtual void g() {}<br />
};<br />
Class derive : virtual public base<br />
{<br />
	public:<br />
		int d;<br />
		derive()<br />
		{}<br />
		virtual void f() {}<br />
		virtual void g() {}<br />
};

………………
derive d;
cout<<sizeof(d); <b="">gives 12 why?
/*
But if I don’t give constructors in derive then the size of derive class object is 10, because there will be no 2 bytes extra in object layout as shown below. Please help me out about finding the myth of these extra two bytes.
*/

Object-Layout            V-TABLE
   |------------|          |------------|
---|ptr to base |       -->|derive::f   |
|  |------------|       |  |------------|
|  |derive v-ptr|-------|  |derive::k   |
|  |------------|          |------------|
|  |d           |        ->|derive::f   |
|  |------------|        | |------------|
|  |0           |<--     | |base::g     |
|  |------------|   |    | |------------|
-->|base-vptr   |---|----|
   |------------|   |
   |b           |   |
   |------------|   |<small>what the hell is this</small>

Please reply at:
Contact: informfarid@yahoo.com

------------------------------------------------------------
In the middle of dificulty lies oppurtunity.

Re: Polymorphism in C++

Johnny ²2-Jul-04 2:20

Johnny ²

2-Jul-04 2:20

Can I ask why you need to know? A compiler is at liberty to decide how to layout a class - the C++ standard doesnt define this. I recall finding a description of different methods on the net, so you should be able to find the details from google. I would imagine the extra byte is for some internal use by the Borland compiler, or maybe even just for padding. Either way, you shouldnt base code upon the size of an object, as compilers will give different sizes.

Re: Polymorphism in C++

mfareed_baig2-Jul-04 2:58

mfareed_baig

2-Jul-04 2:58

2 extra bytes meanse shortage of ram
Even if there is know reason one should know the myth of this mystry

------------------------------------------------------------You miss 100% of shots that u dont take.

Re: Polymorphism in C++

Johan Rosengren2-Jul-04 6:43

Johan Rosengren

2-Jul-04 6:43

Saving 2 bytes! You must be kidding - for a 1 000 instances of the class, this means (less than) a meagre 2 kbs of wasted space. This is not uncommon - "wasting" memory, that is - structs will be padded, for example, for reasons of performance.

You should just leave this to the compiler-writers, madness lies in this direction Smile | :)

Re: Polymorphism in C++

Paul Ranson2-Jul-04 3:28

Paul Ranson

2-Jul-04 3:28

I think it's related to your use of virtual inheritance. What's your reason for making the inheritance relationship 'virtual'?

Paul

Re: Polymorphism in C++

Blake Miller2-Jul-04 7:55

Blake Miller

2-Jul-04 7:55

It may have everything to do with keeping VTables on 4-byte boundaries.
Since VTables will resolve into pointers to functions in derived classes, they want to keep them aligned so the performance on the CPU is better.
As an experiment, you can try changing

public:
int b;
base()

into

public:
byte b;
base()

And you will still probably get 12.

Then try

public:
int b;
int c;
base()

And you might still get 12.

I think it has do do with optimizing pointers to tables of function pointers, myself.

getting quota (space) for an logged-in user in FTP

harinat1-Jul-04 21:25

harinat

1-Jul-04 21:25

Hello Guys,
How ru doing, I need some help in FTP, first i will clearly explain u the situation.....
i have one one FTP user login, i have logged into the FTP server with that login, now by code i need to know how much space like .... The total space allocated for the user, the space occupied by the user, and the remaining space.

currently i have one solution...but its not working fine...i.e i can execute a FTP command through code like "ls", doing this will return a string to me containing the result(text string) for the executed command. the problem here is this is not working all the time....if the data commection is lost it just hangs offff and many other problems are there.

guys plz help me out of this problem....waiting for the solution

Re: getting quota (space) for an logged-in user in FTP

Ted Ferenc1-Jul-04 21:45

Ted Ferenc

1-Jul-04 21:45

in UNI*/perl

<br />
$dir = "/myserver/mydir";<br />
$aa=qx(du -s -k -m $dir);<br />
print "<BR>size of website in MB $aa<BR>";

in FTP I think your only solution is to manually recurse through all the subdirectories geting the size of each file, if you are using the MFC CFtpFileFind is one solution

"Laughing at our mistakes can lengthen our own life. Laughing at someone else's can shorten it."

- Cullen Hightower

Re: getting quota (space) for an logged-in user in FTP

harinat1-Jul-04 22:17

harinat

1-Jul-04 22:17

Ted...thanks for ur reply man...

Actually the Server which iam going to connect is Windows wunning Windows Media Server

as u said iam able to get the size of the files in the server...but i need one more thing...i.e the maximum space allocated for the user...i.e in my application i upload some as per the user request...when uploading the file, i should the left out empty space for the user..if its less then i have stop the upload ...this is the scenario....got it fed....can u help me out of this solution

Re: getting quota (space) for an logged-in user in FTP

Ted Ferenc1-Jul-04 23:00

Ted Ferenc

1-Jul-04 23:00

Sorry can't help you there.

"Laughing at our mistakes can lengthen our own life. Laughing at someone else's can shorten it."

- Cullen Hightower

How to add functionality on 'OK' button on a property sheet?

Rajesh_K_Sharma1-Jul-04 21:21

Rajesh_K_Sharma

1-Jul-04 21:21

Hi.
I am new to MFC/VC++.
please guide me.
I create three -page on a property sheet like page1,page2 and page3.page1 contains three text box which take integer value.Now. I create three member variable of int type like
m_nText1
m_nText2
m_nText3
I would like to do that when I click On 'OK' button on a proerty sheet.It should add two integer values(m_nText1+m_nText2) and display in the third text box(m_nText3).I want to do through constructor.

Any help appriciated
Thanks

rajesh

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