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Reading and Writing Messages in Outlook Express

By , 27 Mar 2006
 
Prize winner in Competition "MFC/C++ Nov 2004"

Sample Image - Outlook_Express_Messages.jpg

Table of contents

Introduction

The application has the following features:

  1. List local folders.
  2. Create / rename / delete local folder.
  3. List messages of a local folder.
  4. Get message properties.
  5. Get message source.
  6. Create / copy / move / delete messages.
  7. Mark messages as Read or Unread.
  8. List body properties or headers.
  9. Get / set property values.
  10. Navigate body structure.
  11. Get / set body content.
  12. Insert bodies.
  13. List / add / remove attachments.

Using this Code

This code was written to provide an initial example of the IStoreFolder / IStoreNamespace classes. Then, an example of IMimeMessage / IMimeMessageTree / IMimeBody / IMimePropertySet was added to the application. The idea of this article is to document, with a complete example, all these interfaces to show how Outlook Express storage could be accessed.

In the initial dialog, all the local folders of the main identity are listed to let the user modify them. In the message dialog, you will see all the messages of the selected folder. Identifying the message source and other operations can be done here. In the 'Bodies' dialog, you will be able to view the message structure and modify it.

Points of Interest

List local folders:

// add all the folders to the list box recursively
void CDemoDlg::AddFolders(STOREFOLDERID dwFolderId)
{
    FOLDERPROPS props;
    HENUMSTORE hEnum;
    int nIndex;

    hEnum = NULL;

    // set the size of the structure
    // or the function return error
    props.cbSize = sizeof(FOLDERPROPS);

    HRESULT hr = 
      m_pStoreNamespace->GetFirstSubFolder(dwFolderId, 
      &props, &hEnum);

    while(SUCCEEDED(hr) && hr != 
               S_FALSE && hEnum != NULL) {
        nIndex = m_listFolder.AddString(props.szName);

        if(nIndex != LB_ERR && nIndex != LB_ERRSPACE) {
            // set the folder id as the data of the item
            m_listFolder.SetItemData(nIndex, props.dwFolderId);

            // add children of this folder too
            AddFolders(props.dwFolderId);
        }

        hr = m_pStoreNamespace->GetNextSubFolder(hEnum, &props);
    }

    // close the enum
    if(hEnum) {
        m_pStoreNamespace->GetSubFolderClose(hEnum);
    }
}

List messages of a folder:

//List messages of folder and add 
//all 'Subject' and 'From' to the list box
MESSAGEPROPS msgProps;
HENUMSTORE hEnumMsg;
CString item;
int nIndex;

hEnumMsg = NULL;

// set the size of the structure
// or the function return error
msgProps.cbSize = sizeof(MESSAGEPROPS);

// as we want the subject and other
// staff we get all the properties.
// you can use MSGPROPS_FAST as first parameter
// to get only a few properties of the message.
HRESULT hr = m_pStoreFolder->GetFirstMessage(0,
                                             0,
                                             MESSAGEID_FIRST,
                                             &msgProps,
                                             &hEnumMsg);

while(SUCCEEDED(hr) && hr != S_FALSE) {
    item = msgProps.pszDisplayFrom;
    item += _T("      ");
    item += msgProps.pszNormalSubject;

    // message subject and from is displayed in the list box.
    // data of each item is the message id.
    nIndex = m_listMsg.AddString(item);

    if(nIndex != LB_ERR && nIndex != LB_ERRSPACE) {
        m_listMsg.SetItemData(nIndex, msgProps.dwMessageId);
    }

    // free the message properties
    // as they are allocated by IStoreFolder.
    m_pStoreFolder->FreeMessageProps(&msgProps);

    hr = m_pStoreFolder->GetNextMessage(hEnumMsg, 
                                   0, &msgProps);
}

// close the enum
if(hEnumMsg) {
    m_pStoreFolder->GetMessageClose(hEnumMsg);
}

Display the source of a message:

// this function displays the source
// of the selected message in the list box
void CMsgDlg::OnView()
{
    ULONG ulReaded = 0;
    int nIndex;
    STOREFOLDERID dwSelMsg;
    HRESULT hr;
    IStream *pTextStream;
    char buffer[4096];

    // Get selected folder id
    nIndex = m_listMsg.GetCurSel();
    if(nIndex == LB_ERR) {
        MessageBox(_T("Select a message first."), 
                   _T("Demo Error"));
        return;
    }

    dwSelMsg = m_listMsg.GetItemData(nIndex);

    // create a IStream from the message
    hr = m_pStoreFolder->OpenMessage(dwSelMsg, 
         IID_IStream, (VOID **) &pTextStream);
    if(FAILED(hr)) {
        MessageBox(_T("Error opening message."), 
                   _T("Demo Error"));
        return;
    }

    CMsgSrcDlg msgSrcDlg;

    // read all the message
    do {
        hr = pTextStream->Read(buffer, 
             sizeof(buffer)-1, &ulReaded);

        if(FAILED(hr)) {
            MessageBox(_T("Error reading message."), 
                       _T("Demo Error"));
        }
        else {
            buffer[ulReaded] = 0;

            msgSrcDlg.AddMessageSource(buffer);
        }
    } while(SUCCEEDED(hr) && ulReaded != 0);

    if(SUCCEEDED(hr)) {
        // display message
        msgSrcDlg.DoModal();
    }

    pTextStream->Release();
}

Create a message in a folder:

IStream *newMail = NULL;
MESSAGEID msgId;
HRESULT hr;
ULONG len;
CString msgSource;

// Set msgSource to contain
// the source of the new message
...

// Create the IStream to write the new message
// this function returns the id of the new message
hr = m_pFolder->CreateStream(0, 0, &newMail, &msgId);
if(FAILED(hr)) {
    MessageBox(_T("Cannot Create Stream."), 
               _T("Demo Error"));
    return;
}

// write message source in the IStream
hr = newMail->Write((const char *) msgSource, 
     msgSource.GetLength(), &len);
if(FAILED(hr)) {
    MessageBox(_T("Cannot Write message."), 
               _T("Demo Error"));
    newMail->Release();
    return;
}

// Commit the IStream in the folder
// and use the returned msgId
hr = m_pFolder->CommitStream(0, 0, 0, 
                  newMail, msgId, NULL);
if(FAILED(hr)) {
    MessageBox(_T("Cannot Commit Stream."), 
               _T("Demo Error"));
    newMail->Release();
    return;
}

// release the IStream
newMail->Release();

List body properties:

// add property names to the combo box
// first get IMimeMessage interface
// using IStoreFolder and the message id.
hr = pFolder->OpenMessage(msgId,
                          IID_IMimeMessage,
                          (LPVOID*) &m_pMimeMsg);
if(FAILED(hr)) {
    OutputDebugString("CMessageTreeDlg::"
             "SetMessage: OpenMessage.\n");
    return;
}

// get root body of the message.
hr = m_pMimeMsg->GetBody(IBL_ROOT, 0, &m_hCurBody);
if(FAILED(hr)) {
    OutputDebugString("OEMessage::SetMessage:"
                      " Cannot get root body.\n");
    return;
}

...

// bind the body to the IMimePropertySet interface.
hr = m_pMimeMsg->BindToObject(m_hCurBody,
     IID_IMimePropertySet, (LPVOID *) &m_pPropertySet);
if(FAILED(hr)) {
    OutputDebugString("OEMessage::UpdateBodyInfo:"
           " BindToObject IID_IMimePropertySet.\n");
    return;
}

...

IMimeEnumProperties *pEnum = NULL;
ENUMPROPERTY eProp = {0};
ULONG cFetched;
HRESULT hr;

m_propNames.ResetContent();

// enum properties of the body.
hr = m_pPropertySet->EnumProps(0, &pEnum);
if(FAILED(hr)) {
    OutputDebugString("OEMessage::"
          "FillCombo: EnumProps.\n");
    return;
}

hr = pEnum->Next(1, &eProp, &cFetched);

while(SUCCEEDED(hr) && hr != S_FALSE) {
    m_propNames.AddString(eProp.pszName);

    hr = m_pAllocator->FreeEnumPropertyArray(1,
                                    &eProp, FALSE);
    if(FAILED(hr)) {
        OutputDebugString("OEMessage::FillCombo:"
                          " FreeEnumPropertyArray.\n");
    }

    hr = pEnum->Next(1, &eProp, &cFetched);
}

if(pEnum) {
    pEnum->Release();
}

List attachments:

ULONG attachCount, i, j;
HBODY *bodyAttachs = NULL;
HRESULT hr;
IMimeBody *pMimeBody;
LPSTR display;
int nItem;

m_attachs.ResetContent();

hr = m_pMimeMsg->GetAttachments(&attachCount,
                                   &bodyAttachs);
if(FAILED(hr)) {
    MessageBox(_T("Cannot get attachments:")
       _T(" GetAttachments."), _T("Demo Error"), MB_OK);
    return;
}

// keep only bodies of type IBT_ATTACHMENT.
for(i=0; i<attachCount;) {
    hr = m_pMimeMsg->IsBodyType(bodyAttachs[i],
                                  IBT_ATTACHMENT);
    if(hr != S_OK) {
        for(j=i+1; j<attachCount; j++) {
            bodyAttachs[j-1] = bodyAttachs[j];
        }

        attachCount--;
    }
    else {
        // for the attachments, get display
        // name of the body to add to the listbox.
        hr = m_pMimeMsg->BindToObject(bodyAttachs[i],
                                      IID_IMimeBody,
                                      (LPVOID *) &pMimeBody);
        if(SUCCEEDED(hr)) {
            hr = pMimeBody->GetDisplayName(&display);
            if(SUCCEEDED(hr)) {
                nItem = m_attachs.AddString(display);
                m_attachs.SetItemData(nItem,
                          (DWORD) bodyAttachs[i]);

                CoTaskMemFree(display);
            }
        }

        i++;
    }
}

if(bodyAttachs) {
    CoTaskMemFree(bodyAttachs);
}

Get body content:

while(1) { // just to save code!
    // bind body handle to a IMimeBody interface.
    hr = m_pMimeMsg->BindToObject(m_hCurBody,
                                  IID_IMimeBody,
                                  (LPVOID *) &pMimeBody);
    if(FAILED(hr)) {
        OutputDebugString("CMessageTreeDlg::"
             "UpdateBodyInfo: BindToObject\n");
        break;
    }

    ...

    encType = IET_BINARY;
    m_isTextBody = FALSE;

    m_cntType = GetContentType(m_hCurBody);

    // if the body is a 'text' treat as a text.
    // Otherwise, read it as a buffer char
    // by char.
    if(m_cntType.Find(_T("text")) == 0) {
        encType = IET_UNICODE;
        m_isTextBody = TRUE;
    }

    ...

    m_bodyContent = _T("");

    // Get body as a stream
    hr = pMimeBody->GetData(IET_UNICODE,
                            &pBodyStream);
    if(FAILED(hr)) {
        OutputDebugString("OEMessage::GetBodyText: GetData\n");
        break;
    }

    // if it is a text when we read it it comes unicode.
    if(encType == IET_UNICODE) {
        // for text bodies
        do {
            // Read the IStream into our buffer
            hr = pBodyStream->Read(lpszwBody,
                                   sizeof(lpszwBody)-sizeof(WCHAR),
                                   &ulRead);
            if(FAILED(hr)) {
                OutputDebugString("OEMessage::GetBodyText: Read\n");
            }
            else if(ulRead != 0) {
                // Null terminate it
                lpszwBody[ulRead/2] = '\0';
                m_bodyContent += (WCHAR *) lpszwBody;
            }
        } while(ulRead != 0);
    }
    else {
        do {
            // Read the IStream into our buffer.
            // It can be binary so it could
            // be displayed truncated.
            hr = pBodyStream->Read(lpszBody,
                                   sizeof(lpszBody)-sizeof(char),
                                   &ulRead);
            if(FAILED(hr)) {
                OutputDebugString("OEMessage::GetBodyText: Read\n");
            }
            else if(ulRead != 0) {
                // Null terminate it
                lpszBody[ulRead] = '\0';
                m_bodyContent += lpszBody;
            }
        } while(ulRead != 0);
    }

    pBodyStream->Release();

    break;
}

if(pMimeBody) {
    pMimeBody->Release();
}

Set body content:

HRESULT hr;
ULONG ulLength, ulWritten;
BSTR bstr = NULL;
IStream *pStream = NULL;
IMimeBody *pMimeBody = NULL;
PROPVARIANT propValue;

UpdateData(TRUE);

while(1) {
    // Create a new stream to write in the new body
    hr = CreateStreamOnHGlobal(NULL,
                               TRUE,
                               &pStream);
    if(FAILED(hr)) {
        MessageBox(_T("Cannot set content:" )
            _T(" CreateStreamOnHGlobal."),
            _T("Demo Error"), MB_OK);
        break;
    }

    // compute the new body length + the
    // zero that terminates the string
    ulLength = m_bodyContent.GetLength() + 1;

    // there are better ways
    // to do it but this is the easiest
    bstr = m_bodyContent.AllocSysString();

    // write in the new body
    hr = pStream->Write((LPWSTR) bstr,
                        ulLength * sizeof(WCHAR),
                        &ulWritten);
    if(FAILED(hr)) {
        MessageBox(_T("Cannot set content: Write."),
                   _T("Demo Error"), MB_OK);
        break;
    }

    // Commit the stream
    hr = pStream->Commit(STGC_DEFAULT);
    if(FAILED(hr)) {
        MessageBox(_T("Cannot set content: Commit."),
                   _T("Demo Error"), MB_OK);
        break;
    }

    // bind body handle to IMimeBody interface
    hr = m_pMimeMsg->BindToObject(m_hCurBody,
                                  IID_IMimeBody,
                                  (LPVOID *) &pMimeBody);
    if(FAILED(hr)) {
        MessageBox(_T("Cannot set content:")
                _T(" Commit."), _T("Demo Error"), MB_OK);
        break;
    }

    CString priCon, secCon;

    propValue.vt = VT_LPSTR;

    // get content-type property to save the body
    hr = m_pMimeMsg->GetBodyProp(m_hCurBody,
         PIDTOSTR(PID_HDR_CNTTYPE), 0, &propValue);
    if(FAILED(hr) || hr == S_FALSE) {
        MessageBox(_T("Cannot set content:")
             _T(" GetBodyProp."), _T("Demo Error"), MB_OK);
        break;
    }

    // this property has the format
    // of 'primaryType/secondaryType'
    char *sep = strchr(propValue.pszVal, '/');

    if(sep == NULL) {
        MessageBox(_T("Cannot set content:")
             _T("Content Type error."),
             _T("Demo Error"), MB_OK);
        PropVariantClear(&propValue);
        break;
    }

    secCon = sep+1;
    *sep = 0;
    priCon = propValue.pszVal;

    PropVariantClear(&propValue);

    // save the data in this new stream
    // into the body using
    // the save conent-type it had before
    hr = pMimeBody->SetData(IET_UNICODE,
                            priCon,
                            secCon,
                            IID_IStream,
                            pStream);
    if(FAILED(hr)) {
        MessageBox(_T("Cannot set content: SetData."),
                   _T("Demo Error"), MB_OK);
        break;
    }

    break;
}

if(bstr) {
    ::SysFreeString(bstr);
}
if(pMimeBody) {
    pMimeBody->Release();
}
if(pStream) {
    pStream->Release();
}

License

You can use this freely, leaving the copyright notice at the top of the files.

History

  • 28-Dec-2004 - First released: IStoreFolder / IStoreNamespace.
  • 25-Mar-2006 - Update: IMimeMessage / IMimeMessageTree / IMimePropertySet / IMimeBody.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

 Pablo Yabo
Technical Lead http://www.nektra.com
Argentina Argentina
Member
Pablo Yabo is a Software Developer since he was young, specialized in system internals.
In 2003 years ago founded with Sebastian Wain a Company named Nektra specialized in Outlook Express and Outlook Plugin Development.
Now there is a new Windows Live Mail API 2011 / 2009 that works on all the platforms Windows 7, Vista and XP

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First PrevNext
Questionhow to set rtf data to a mime messagememberravi malik11 May '10 - 0:12 
hi,
 
this article is very helpful.
 
i want to set rtf data to a mime message
how can i do that?
 
for setting html data to a mime message my code snippet is like this:
 
what change i need to do to set rtf data to the mime message body?
or
first i need to convert rtf data to html data?
 
code snippet:
*********************************************************************
// set html data to a mime message
CoInitialize(NULL);
IMessage* pMsg = NULL;
IBodyPart* pBp = NULL;
IConfiguration* pConfig = NULL;
Fields* pFlds = NULL;
Field* pFld = NULL;
_Stream* pStm = NULL;
 
HRESULT hr = S_OK;
 
hr=CoCreateInstance(
__uuidof(Message),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IMessage),
(void**)&pMsg);
 
pMsg->put_To(_bstr_t("\"Some One\" <example@example.com>, \"Another\" <another@example.com>"));
pMsg->put_From(_bstr_t("\"ThirdPerson\" <exampleuser3@example.com>, \"Fourth\" <exampleuser4@example.com>"));
pMsg->put_Sender(_bstr_t("\Finally\" <example@example.com>"));
pMsg->put_Subject(_bstr_t("Files for Monday's meeting."));
 
pMsg->put_MimeFormatted(VARIANT_FALSE);
 
char*pch=NULL;
CFile file;
file.Open("c:\\me.html",CFile::modeRead);
int xx = file.GetLength();
pch = (char*)calloc(1,xx+1);
file.Read(pch,xx);
file.Close();
 
IBodyPart *bodyPart;
pMsg->get_BodyPart(&bodyPart);
bodyPart->put_ContentTransferEncoding(_bstr_t("quoted-printable"));
 
pMsg->put_HTMLBody((unsigned short*)pch);
free(pch);
pch=NULL;
 
pMsg->GetStream(&pStm);
pStm->SaveToFile(L"c:\\me.eml",adSaveCreateOverWrite);
 
pStm->Release();
pMsg->Release();
 
CoUninitialize();
 
*********************************************************************
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Questionhow can i find contactsmemberwolf111118 Mar '10 - 4:11 
I want to know how I can find a list of my contacts in Outlook?
it looks a bit like what you did to access local files but how do I find my contacts in Outlook?
thank you Smile | :)
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Questionhow to add contact into outlook express group, thanks...memberhsq62813 Sep '09 - 20:20 
Hi, sorry to interrupt you. I am really feazed by the coding on the outlook express.
I am developing my application using C++ with the help of NKT WAB .And i've downloaded the NKT WAB V2.1.0 Source Code.
I appreciated you so much for your great work!!
 
The problem is that i don't know how to add contacts into my OE group in my application,
although i see in the source code that it is appending the EntryId of the existing contact to the DistList.
Now i can get the DistributionListArray by the property of PR_DISTLIST_ENTYRIDS and then create the new "lpProp" of LPSPropValue type.
So how can i set the new "lpProp" as the value of the tag "PR_DISTLIST_ENTRYIDS" of my OE group?
 
In the source code, it is done by "SetField(lpProp)" and i am puzzled by the global varialbe "_changeProps" of "PropMap" type in the function of SetField();
because i can't find any initalization of the varialbe "_changeProps" in the context. Is it releate to COM? but i know little about it....
So the key is that how can i retrieve "_changeProps" ?
if i get it, maybe i can i set the new "lpProp" as the value of the tag "PR_DISTLIST_ENTRYIDS" of my OE group.
Addtional, it failed when i use "lpDistList->SetProps(1, lpProp, NULL)" ;
 
So could you please give me anytips or methods about that?
I’m hopeful you can help my out, and any support is appreciated.
Thanks again and best wishes to you. ^_^
 
The below is my C++ source code of this part:
 
if(lpContactEntryID)
 
{
 
HRESULT hr = E_FAIL;
LPSPropValue lpOldProp;
 
LPSPropValue lpProp;
 
SBinary *lpBin, *lpOldBin;
 
SBinaryArray *lpOldValue;
 
int cValues = 1;
 
ULONG arraySize = 0;
 

 
lpOldProp = GetDistributionListArray(lpDistList);
 
lpOldValue = &lpOldProp->Value.MVbin;
 
if(lpOldValue)
 
{
 
cValues = lpOldValue->cValues + 1;
 
lpOldBin = lpOldValue->lpbin;
 
}
 

 
hr = m_lpWABObject->AllocateBuffer(sizeof(SPropValue), (LPVOID *) &lpProp);
 
hr = m_lpWABObject->AllocateMore(sizeof(SBinary)*cValues, lpProp, (LPVOID *) &lpBin);
 

 
lpProp->dwAlignPad = 0;
 
lpProp->ulPropTag = PR_DISTLIST_ENTRYIDS;
 

 
lpProp->Value.MVbin.cValues = cValues;
 
lpProp->Value.MVbin.lpbin = lpBin;
 

 
for(int i=0; i<(int)cValues; i++)
 
{
 
if(lpOldValue && i < (int)lpOldValue->cValues)
 
{
 
m_lpWABObject->AllocateMore(lpOldValue->lpbin[i].cb, lpProp, (LPVOID *) &lpBin[i].lpb);
 
lpBin[i].cb = lpOldValue->lpbin[i].cb;
 
memcpy(lpBin[i].lpb, lpOldValue->lpbin[i].lpb, lpOldValue->lpbin[i].cb);
 
}
 
else
 
{
 
m_lpWABObject->AllocateMore(cbContactEntryID, lpProp, (LPVOID *) &lpBin[i].lpb);
 
lpBin[i].cb = cbContactEntryID;
 
memcpy(lpBin[i].lpb, lpContactEntryID, cbContactEntryID);
 
}
 
}
 
if(lpOldProp)
 
{
 
m_lpWABObject->FreeBuffer(lpOldProp);
 
}
 

 
hr = lpDistList->SetProps(1, lpProp, NULL);
 
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QuestionHow can I manipulate contacts in outlook express 6memberVishalIndia3 Sep '09 - 20:41 
How can I manipulate contacts in outlook express 6
 
If it is out of scope of this article then please give some hint so I can find the way.
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AnswerRe: How can I manipulate contacts in outlook express 6memberVishalIndia4 Sep '09 - 1:48 
Well,
 
I got something useful here
http://msdn.microsoft.com/en-us/library/ms629361%28VS.85%29.aspx[^]
 
Now I know outlook express uses "windows Address book". Now can anyone tell me, is there any wrapper/extension through which I can access both mapi clients(Outllok 2007 and later versions) and outlook express (windows address book client)
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AnswerRe: How can I manipulate contacts in outlook express 6memberPablo Yabo4 Sep '09 - 3:27 
Hello,
You can use NKT WAB. It is a free open source (LGPL license) library to manipulate contacts in Outlook Express.
 
Hope it helps!
Pablo
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QuestionHow to detect Switch Identity Programatically?memberJitendra Shirolkar31 Aug '09 - 22:25 
Hello,
 
I want to detect switch identity event of Outlook express.
whenever any user do switch identity is there is any special message or any other way to trap event.
 
Thanks,
Jitendra
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Questiondeleting msg from windows mailmemberMember 31829027 Jul '09 - 21:58 
i was using this code to delete message from outlook express , in windows mail upto finding duplictae (scnning msg from selected folder and deleting =code added by me) was working fine but when it come to delete it gives error ,E_INVALIDARG is return value of deletemessge function.
 
this is realy important to me
 
Please advise .
note: in same type of question it is advise to change flag of message but setflag function do not have value specified in solution
 
Regards
Rupal
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AnswerRe: deleting msg from windows mailmemberPablo Yabo8 Jul '09 - 2:37 
Hi,
If you call DeleteMessages with the first parameter 1 (to delete permanent) that doesn't work in Windows Mail. Using 0 in the first parameter works but to use 1 you need an additional interface to pass in the third parameter.
 
Regards,
Pablo
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QuestionRe: deleting msg from windows mail [modified]memberMember 31829028 Jul '09 - 20:36 
Thanks
 
here is my code snippet
dwSelMsg = m_listMsg.GetItemData(nIndex);
 
DWORD msgIds[] = {dwSelMsg};
 
msgIdList.cbSize = sizeof(MESSAGEIDLIST);
msgIdList.cMsgs = 1;
msgIdList.prgdwMsgId = msgIds;

hr = m_pStoreFolder->DeleteMessages(&msgIdList, 0, 0);
CString ss;
ss.Format("Return value is %d",hr);
MessageBox(ss);
 
Now as per your solution first parameter value should be 1 ,and i need to use another inter face
will you please assist me with interface name ,function and how to use it
 
Thanks In Advance
Rupal
 
modified on Thursday, July 9, 2009 3:13 AM
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GeneralError with OpenMessage functionmemberAlain favre12 Jun '09 - 5:34 
Hi,
 
I"m using a programme to extract all information of emails from Outlook xpress.
 
On Visat and XP, no problem, but on Windows 2000, when reading some emails from outlook Xpress, I have an error with
 
Hres = pFolder->OpenMessage(mprops.dwMessageId, IID_IMimeMessage, (VOID **) &pMimeMessage);
 
pMimeMessage was declared like that:
 
IMimeMessage* pMimeMessage = NULL;
 
The error I have is : Unhandled exception.
 
That happend with some emails. When reading previous email from same folder, not problem.
 
Have you any idea ? pFolder is correct, mprops too
 
Alain
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GeneralPassword protected identitymemberNico Cuppen4 Jun '09 - 0:37 
I ran the demo application on a Windows XP system that has two Outlook Express identities, each protected by a password. The demo didn't need the password to access the mail belonging to the main identity.
Two questions:
- Any idea what to change in your code to make it password-sensitive?
- Any idea how to switch to another identity?
 
Nico
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GeneralRe: Password protected identitymemberPablo Yabo4 Jun '09 - 3:25 
- Any idea what to change in your code to make it password-sensitive?
No at all!
 
- Any idea how to switch to another identity?
I don't know a way to change the identity. You can spy windows messages to see what happen when the user chooses that menu item and simulate user input, but it won't be nice.
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GeneralVS2008memberdjaus9 Mar '09 - 19:53 
Poke tongue | ;-P I was able to import the project directly into VS2008.
No dramas.
Project built OK and seems to be running OK.
 
Been looking for an Outlook Express API as need for XP Embedded.
 
Thx David JOnes
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GeneralRe: VS2008memberPablo Yabo27 Apr '09 - 6:25 
Good to hear!
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GeneralWindows Mail accessmemberphil359565485210 Feb '09 - 18:30 
Pablo,
do you know how to access the windows Live mail or Windows Mail of Vista, messages and properties. Messages are ascii files but the properties of the messages such as read etc are not documented that I can tell.
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GeneralRe: Windows Mail accessmemberPablo Yabo27 Apr '09 - 6:24 
Hi,
Windows Mail in Vista uses the same interfaces, it has some problems when you write email. I may include this issues in a new article in the future.
For Windows Live Mail there is are no public interfaces, we at Nektra recently researched the Windows Live Mail undocumented API and it's a bit complex to do an article to include all versions of the mailer. We notice changes even in minor releases.
Messages are text stored as Eml in a database but the properties are only in the database, they are not in the message itself. To access the properties you should use IStoreNamespace / IStoreFolder and there are some undocumented interfaces.
Pablo
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GeneralI must be missing something-please advisememberphil359565485210 Feb '09 - 17:54 
I can't find CoUninitialize().
I'll feel dumb if it's there. I thought I saw it in creation and destruction code but I can't see it
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GeneralRe: I must be missing something-please advisememberPablo Yabo27 Apr '09 - 6:28 
CoUnitialize is included in Ole32.dll.
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QuestionProblem when the application is launched from Window ServicememberShailk6 Feb '09 - 21:07 
Your demo application works well when it is launched manually.
 
But when it is launched using the window service, it fails to get the messages.
 
Is there any thing required in interaction with the window service.
 
Regards,
Shail2k4
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AnswerRe: Problem when the application is launched from Window ServicememberPablo Yabo27 Apr '09 - 6:31 
I think that it shouldn't work from a service because it uses Ole that communicate with other processes through windows messages. Your service should have the flag that is able to connect with the desktop.
Pablo
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QuestionBlock Sender Listmemberpakistan2 Feb '09 - 22:55 
Hi,
Nice article Posted.
I am trying to add the email addresses in to the "block sender list" of Outlook express 6.
Can you tell me how I do that ?
 
Waiting for the expert reply.
 
Regards,
Idrees.
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AnswerRe: Block Sender ListmemberPablo Yabo27 Apr '09 - 6:34 
Mmmm, I don't know where is that list. Did you try using NKT Wav?
With this tool you can see all the contacts and folders, the tool is free (LGPL) and you can use the code freely.
Pablo
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Generalcreate a .dbx file at a specified location.memberravimalika29 Jan '09 - 22:12 
hi,
 
can you tell me how to use your program to create a .dbx file at a specified location.
 
i don't want to show this folder to be appear in the current outlook express profile
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QuestionCan I get the domain of a message from which it was downloaded?memberjoel_12341 Oct '08 - 11:43 
In Outlook Express 6, there is an attribute "att:athena-server" which contains the domain from which the message was received.
However I don't see it windows vista. I see Windows Mail does display the account from which the message was received, so they do keep the account info. In addition, in the message storage (in the edb file under Windows Mail) I do see the domain too.
 
Is there a way to get the domain?
I was thinking maybe they save it as Unicode, but I was not able to get the IMimeMessageW to work (which would allow me to use GetPropW). I did not find that interface in the registry, and I do have the inetcomm.dll version 6, which should have it.
 
Thanks
 
Joe
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About Article
This article was done to provide an example of IStoreNamespace / IStoreFolder.
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First Posted 28 Dec 2004
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