LazyMAPI

MAPIMsgUtils

unit: MAPIMsgUtils.pas
file path: ..\Library\
version: 2014.хх
uses Classes, Windows, SHDocVw, ExtendedMAPI, IMIEMTypes, MAPIBestBody

Available functions:

function GetMsgSenderName - Returns the message sender's display name

function GetMsgSenderAddress - Returns the message sender's E-mail address

function GetMsgSenderAddressType - Returns the message sender's e-mail type


function GetMsgToNames - Returns a list of the display names of the primary (To) message recipients, separated by semicolons (;).

function GetMsgCcNames - Returns an ASCII list of the display names of any carbon copy (CC) message recipients, separated by semicolons (;).

function GetMsgRecipients - Returns an array of the message recipients header record


function GetMsgSubject - Returns the full subject of a message

function GetMsgSentTime - Returns the date and time when the message sender submitted a message

function GetMsgSize - Returns the sum, in bytes, of the sizes of all properties on a message object


function GetMsgBodyPlain - Returns the message text

function GetMsgBodyRTF - Returns the Rich Text Format (RTF) version of the message text

function GetMsgBodyHTML - Returns the message body text in HTML format


function GetMsgInetCodePage - Returns the code page used for message body

function GetMsgLocaleID - Returns the Windows LCID of the end user who created this message

function GetMsgCodePage - Returns the code page that is used for the message


function GetMsgImportance - Returns a value that indicates the message sender's opinion of the importance of a message

function GetMsgReadReceiptRequest - Returns TRUE if a message sender wants the messaging system to generate a read report when the recipient has read a message

function GetMsgDeliveryReportRequest - Returns TRUE if a message sender requests a delivery report for a particular recipient from the messaging system before the message is placed in the message store.


function GetMsgHasAttachment - Returns TRUE if a message contains at least one attachment

function GetMsgAttTable - Returns the message's attachment table.

function GetMsgAttCount - Returns the total number of attachments.

function GetMsgAttList - Returns an array of the message attachments header record

function GetMsgAttachment - Opens an attachment

function GetMsgAttDataAsStream - Returns a stream with attachment content

function GetAttDataAsStream - Returns a stream with attachment content


function SetMsgRecipients - Set the message recipients


function AddMsgAttachment -  Create a new attachment


function SetMsgImportance - Set the message Importance

function SetMsgSubject - Set message Subject

function SetMsgReadReceiptRequest - Set message Read Receipt Request

function SetMsgDeliveryReportRequest - Set message Delivery Report Request


function SetMsgLocaleID - Set Windows LCID of the end user who created this message

function SetMsgInetCodePage - Set the code page (PR_INTERNET_CPID) used for message body. Indicates the code page used for PR_BODY or PR_BODY_HTML properties.

function SetMsgCodePage - Specifies the code page used to encode the non-Unicode string properties on this Message


procedure ClearMsgBodyPart - Delete all body parts as Plain, RTF, HTML


function SetMsgBodyPlain - Set the message plain text

function SetMsgBodyRtf - Set the message RTF text

function SetMsgBodyHtml - Set the message HTML text


function SaveMsg - Makes permanent any changes that were made to a message


procedure SubmitMsg - Saves all of the message's properties and marks the message as ready to be sent


procedure DeleteMsgAttachment - Delete an Attachment

procedure DeleteMsg - Delete a Message


procedure GetMsgAfterSendAction - Processing a Sent Message

procedure SetMsgAfterSendAction - Processing a Sent Message


procedure ShowHTMLBodyRendered - Shows HTML body by TWebBrowser

 function ShowCustomSize - For internal use

procedure ShowModalMessage - Displays a message form


function GetMsgSenderName(const MAPIMessage: IMessage): String;

description
   Returns the message sender's display name (PR_SENDER_NAME)

parameters

MAPIMessage - IMessage.

usage

 // Get From Name
labelFrom.Caption := GetMsgSenderName(FMAPIMessage);

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function GetMsgSenderAddress(const MAPIMessage: IMessage): String;

description
 
Returns the message sender's E-mail address (PR_SENDER_EMAIL_ADDRESS)

parameters
MAPIMessage - IMessage.

usage

 // Get From Name
labelFrom.Caption := GetMsgSenderName(FMAPIMessage);
 // Get From Address
labelFrom.Caption := labelFrom.Caption + ' [' + GetMsgSenderAddress(FMAPIMessage) + ']';

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function GetMsgSenderAddressType(const MAPIMessage: IMessage): String;

description
 
Returns the message sender's E-mail type (PR_SENDER_ADDRTYPE)

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function GetMsgToNames(const MAPIMessage: IMessage): String;

description
 
Returns a list of the display names of the primary (To) message recipients, separated by semicolons (;).  (PR_DISPLAY_TO)

parameters
MAPIMessage - IMessage.

usage

 // Get From Name
labelFrom.Caption := GetMsgSenderName(FMAPIMessage);
 // Get From Address
labelFrom.Caption := labelFrom.Caption + ' [' + GetMsgSenderAddress(FMAPIMessage) + ']';
 // To
lbTo.Caption := GetMsgToNames(FMAPIMessage);

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function GetMsgCcNames(const MAPIMessage: IMessage): String;

description
 
Returns an ASCII list of the display names of any carbon copy (CC) message recipients, separated by semicolons (;). (PR_DISPLAY_CC)

parameters
MAPIMessage - IMessage.

usage

 // Get From Name
labelFrom.Caption := GetMsgSenderName(FMAPIMessage);
 // Get From Address
labelFrom.Caption := labelFrom.Caption + ' [' + GetMsgSenderAddress(FMAPIMessage) + ']';
 // To
lbTo.Caption := GetMsgToNames(FMAPIMessage);
 // CC
lbCc.Caption := GetMsgCcNames(FMAPIMessage);

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function GetMsgRecipients(const MAPIMessage: IMessage; var Recipients: TRecipientsHeadList): Boolean;

description
 
On Success returns an array of the message recipients header record

parameters
MAPIMessage - IMessage.
Recipients - TRecipientsHeadList Array of Recipient header records

usage

 // Get saved (existing) recipients
GetMsgRecipients(FMAPIMessage, RecipientHeadList);
FillEmailFields;


procedure FillEmailFields;
var
    iCount: Integer;
begin
    ebTo.Text := ''; // eb => TEdit
    ebCC.Text := '';
    ebBcc.Text := '';

    for iCount := 0 to Length(RecipientHeadList) - 1 do
    begin
        case RecipientHeadList[iCount].RecipientType of
            rtTo:
                ebTo.Text := ebTo.Text + RecipientHeadList[iCount].DisplayName + '; ';
            rtCc:
                ebCC.Text := ebCC.Text + RecipientHeadList[iCount].DisplayName + '; ';
            rtBCc:
                ebBcc.Text := ebBcc.Text + RecipientHeadList[iCount].DisplayName + '; ';
        end;
    end;
end;
 

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function GetMsgSubject(const MAPIMessage: IMessage): String;

description
Returns the full subject of a message (PR_SUBJECT)

parameters
MAPIMessage - IMessage.

usage

// Get Subject
labelSubject.Caption := GetMsgSubject(FMAPIMessage);

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function GetMsgSentTime(const MAPIMessage: IMessage): TDateTime;

description
Returns the date and time when the message sender submitted a message (PR_CLIENT_SUBMIT_TIME)

parameters
MAPIMessage - IMessage.

usage

// Get Sent time
labelSent.Caption := 'Sent: ' + DateTimetoStr(GetMsgSentTime(FMAPIMessage));

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function GetMsgSize(const MAPIMessage: IMessage): ULONG;

description
 
Returns the sum, in bytes, of the sizes of all properties on a message object (PR_MESSAGE_SIZE)

parameters
MAPIMessage - IMessage.

usage

// Get Message Size
labelSize.Caption := 'Message size: ' + IntToStr(GetMsgSize(FMAPIMessage)) + ' bytes';

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function GetMsgHasAttachment(const MAPIMessage: IMessage): Boolean;

description
Returns TRUE if a message contains at least one attachment (PR_HASATTACH)

parameters
MAPIMessage - IMessage.

usage

 // Has Attachment
labelHasAttachment.Caption := 'Has Attachment: ' + BoolTostr(GetMsgHasAttachment(FMAPIMessage), True);

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function GetMsgBodyPlain(const MAPIMessage: IMessage; out Stream: TStream; out Unicode: Boolean; out CodePage: Cardinal): Boolean;

description
Returns the message text (PR_BODY)

parameters
MAPIMessage - IMessage.

usage

 // get plain body
if GetMsgBodyPlain(FMAPIMessage, Stream, IsUnicode, CodePage) then
begin
    if IsUnicode then
        Memo.Lines.LoadFromStream(Stream {$IFDEF DELPHI2009}, TEncoding.Unicode {$ENDIF})
    else
        Memo.Lines.LoadFromStream(Stream {$IFDEF DELPHI2009}, TEncoding.Ascii {$ENDIF})
end;

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function GetMsgBodyRTF(const MAPIMessage: IMessage; out Stream: TStream): Boolean;

description
Returns the Rich Text Format (RTF) version of the message text (PR_RTF_COMPRESSED). RTF is always ASCII.

parameters
MAPIMessage - IMessage.

usage

 // get RTF body
if GetMsgBodyRTF(FMAPIMessage, Stream) then
    RichEdit.Lines.LoadFromStream(Stream {$IFDEF DELPHI2009}, TEncoding.Ascii {$ENDIF});

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function GetMsgBodyHTML(const MAPIMessage: IMessage; out Stream: TStream): Boolean;

description
Returns the message body text in HTML format (PR_HTML)

parameters
MAPIMessage - IMessage.

usage

 // get HTML  body
procedure GetHTMLBodyRendered;
var
    Stream: TStream;
    StrStream: TStream;
    CodePage: ULONG;
begin
    Stream := nil;
    try
        WebBrowser.Visible := True;
        if GetMsgBodyHTML(FMAPIMessage, Stream) then
        begin
            CodePage := GetMsgInetCodePage(FMAPIMessage);
            {$IFDEF DELPHI2009}
            StrStream := TStringStream.Create('', TEncoding.GetEncoding(CodePage));
            {$ELSE}
            StrStream := TIMIBStringStream.Create('', CodePage);
            {$ENDIF}
        try
            TMemoryStream(Stream).SaveToStream(StrStream);
            StrStream.Position := 0;
            InitializeCIDMIMEHandler(FMAPIMessage);
            {$IFDEF DELPHI2009}
             LoadDocFromString(WebBrowser, TStringStream(StrStream).DataString, CodePage);
            {$ELSE}
             LoadDocFromString(WebBrowser, TIMIBStringStream(StrStream).DataStringW, CodePage);
            {$ENDIF}
            FreeCIDMIMEHandler;
        finally
            FreeAndNil(StrStream);
        end;
    end;
    finally
        if Assigned(Stream) then
            FreeAndNil(Stream);
    end;
end;

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function GetMsgInetCodePage(const MAPIMessage: IMessage): ULONG;

description
Returns the code page used for message body (PR_INTERNET_CPID).
Indicates the code page used for PR_BODY or PR_BODY_HTML properties.

parameters
MAPIMessage - IMessage.

usage

 // Get Internet Code Page
var
  CodePage: ULONG;
  lpCPInfoEx: TCPInfoEx;
begin
    CodePage := GetMsgInetCodePage(FMAPIMessage);
    if GetCPInfoEx(CodePage, 0, lpCPInfoEx) then
        labelCodePage.Caption := lpCPInfoEx.CodePageName
    else
        labelCodePage.Caption := IntToStr(CodePage);

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function GetMsgLocaleID(const MAPIMessage: IMessage): ULONG;

description
Returns the Windows LCID of the end user who created this message (PR_MESSAGE_LOCALE_ID)

parameters
MAPIMessage - IMessage.

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function GetMsgCodePage(const MAPIMessage: IMessage): ULONG;

description
Returns the code page that is used for the message (PR_MESSAGE_CODEPAGE). Specifies the code page used to encode the non-Unicode string properties on this Message object.

parameters
MAPIMessage - IMessage.

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function GetMsgImportance(const MAPIMessage: IMessage): TMsgImportance;

description
Returns a value that indicates the message sender's opinion of the importance of a message (PR_IMPORTANCE)

parameters
MAPIMessage - IMessage.

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function GetMsgReadReceiptRequest(const MAPIMessage: IMessage): Boolean;

description
Returns TRUE if a message sender wants the messaging system to generate a read report when the recipient has read a message (PR_READ_RECEIPT_REQUESTED)

parameters
MAPIMessage - IMessage.

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function GetMsgDeliveryReportRequest(const MAPIMessage: IMessage): Boolean;

description
Returns TRUE if a message sender requests a delivery report for a particular recipient from the messaging system before the message is placed in the message store. (PR_ORIGINATOR_DELIVERY_REPORT_REQUESTED)

parameters
MAPIMessage - IMessage.

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function GetMsgAttTable(const MAPIMessage: IMessage): IMAPITable;

description
Returns the message's attachment table.

parameters
MAPIMessage - IMessage.
 

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function GetMsgAttCount(const MAPIMessage: IMessage): ULONG;

description
Returns the total number of attachments.

parameters
MAPIMessage - IMessage.

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function GetMsgAttList(const MAPIMessage: IMessage): TAttHeadList;

description
Returns an array of the message attachments header record

parameters
MAPIMessage - IMessage.

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function GetMsgAttachment(const MAPIMessage: IMessage; const ID: Cardinal; const Modify: Boolean = False): IAttach;

description
Opens and returns an attachment - IAttach

parameters
MAPIMessage - IMessage.
ID - Attachment unique ID
Modify - requests read/write access

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function GetMsgAttDataAsStream(const MAPIMessage: IMessage; const ID: Cardinal; Stream: TStream): Boolean;

description
Opens an attachment and returns a stream with attachment content

parameters
MAPIMessage - IMessage.
ID - Attachment unique ID
Stream - attachment content as Stream

usage

procedure TAttachmentDlg.btSaveAsClick(Sender: TObject);
var
    FileName: string;
    ID: Cardinal;
    index: Integer;
    Stream: TMemoryStream;
begin
    if not Assigned(AttachmentListView.Selected) then
    Exit;
    Index := AttachmentListView.Selected.Index;
    ID := FAttHeadList[Index].ID;
    FileName := FAttHeadList[Index].FileName;

    Stream := TMemoryStream.Create;

    try
        if not GetMsgAttDataAsStream(FMAPIMessage, ID, Stream) then Exit;

        if not PromptForFileName(FileName, '', '', '', '', True) then Exit;

        Stream.SaveToFile(FileName);
        ShowMessage('The Attachment is saved to "' + FileName + '"');
    finally
        if Assigned(Stream) then
            FreeAndNil(Stream);
    end;

end;

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function GetAttDataAsStream(const Attachment: IAttach; Stream: TStream): Boolean;

description
Returns a stream with attachment content

parameters
Attachment - IAttach.
Stream - attachment content as Stream

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function SetMsgRecipients(const MAPIMessage: IMessage; const AddressBook: IAddrBook; var Recipients: TRecipientsHeadList; UIParam: ULONG_PTR = 0): Boolean;

description
Set the message recipients

parameters
MAPIMessage - IMessage;
AddressBook - IAddrBook
Recipients - TRecipientsHeadList - array of Recipients Head Records
UIParam - Specifies the parent window handle

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function AddMsgAttachment(const MAPIMessage: IMessage; Stream: TStream; const DisplayName: string; out AttachmentNum: Cardinal): IAttach; overload;
function AddMsgAttachment(const MAPIMessage: IMessage; const FileName: string; out AttachmentNum: Cardinal): IAttach; overload;

description
Create a new attachment

parameters

MAPIMessage -IMessage
Stream - TStream. Stream which contains attachment content
DisplayName - string. The display name of the attachment
FileName - string. The path and file name of the file containing the data for the attachment
AttachmentNum - Cardinal. Attachment Unique ID

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function SetMsgImportance(const MAPIMessage: IMessage; Importance: TMsgImportance): Boolean;

description
 Set message importance (PR_IMPORTANCE)

parameters

MAPIMessage -IMessage
Importance - TMsgImportance

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function SetMsgSubject(const MAPIMessage: IMessage; const Subject: string): Boolean;

description
Set message Subject (PR_SUBJECT). The subject properties are typically small strings of fewer than 256 characters

parameters

MAPIMessage -IMessage
Subject - string

usage

// Set Subject
if Length(Trim(ebSubject.Text)) > 0 then
    SetMsgSubject(FMAPIMessage, Trim(ebSubject.Text));
// set Importance
SetMsgImportance(FMAPIMessage, TMsgImportance(rgMsgImportance.ItemIndex));
// set Read Receipt Request
SetMsgReadReceiptRequest(FMAPIMessage, cbReadRequest.Checked);
// Delivery ReportRequest
SetMsgDeliveryReportRequest(FMAPIMessage, cbDelivery.Checked);

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function SetMsgReadReceiptRequest(const MAPIMessage: IMessage; const Request: Boolean): Boolean;

description
Set message Read Receipt Request (PR_READ_RECEIPT_REQUESTED). Set Request to TRUE if a message sender wants the messaging system to generate a read report when the recipient has read a message.

parameters

MAPIMessage -IMessage
Request - Boolean

usage

// Set Subject
if Length(Trim(ebSubject.Text)) > 0 then
    SetMsgSubject(FMAPIMessage, Trim(ebSubject.Text));
// set Importance
SetMsgImportance(FMAPIMessage, TMsgImportance(rgMsgImportance.ItemIndex));
// set Read Receipt Request
SetMsgReadReceiptRequest(FMAPIMessage, cbReadRequest.Checked);
// Delivery ReportRequest
SetMsgDeliveryReportRequest(FMAPIMessage, cbDelivery.Checked);

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function SetMsgDeliveryReportRequest(const MAPIMessage: IMessage; const Request: Boolean): Boolean;

description
Set message Delivery Report Request (PR_ORIGINATOR_DELIVERY_REPORT_REQUESTED). Set Request to TRUE if a message sender requests a delivery report for a particular recipient from the messaging system before the message is placed in the message store.

parameters

MAPIMessage - IMessage
Request - Boolean

usage

// Set Subject
if Length(Trim(ebSubject.Text)) > 0 then
    SetMsgSubject(FMAPIMessage, Trim(ebSubject.Text));
// set Importance
SetMsgImportance(FMAPIMessage, TMsgImportance(rgMsgImportance.ItemIndex));
// set Read Receipt Request
SetMsgReadReceiptRequest(FMAPIMessage, cbReadRequest.Checked);
// Delivery ReportRequest
SetMsgDeliveryReportRequest(FMAPIMessage, cbDelivery.Checked);

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function SetMsgLocaleID(const MAPIMessage: IMessage; const LocaleID: Cardinal): Boolean;

description
Set Windows LCID of the end user who created this message (PR_MESSAGE_LOCALE_ID)

parameters

MAPIMessage - IMessage
LocaleID - Cardinal

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function SetMsgInetCodePage(const MAPIMessage: IMessage; const InetCodePage:ULONG): Boolean;

description
Set the code page (PR_INTERNET_CPID) used for message body. Indicates the code page used for PR_BODY or PR_BODY_HTML properties.

parameters

MAPIMessage - IMessage
InetCodePage - Cardinal

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function SetMsgCodePage(const MAPIMessage: IMessage; const LocaleID: Cardinal): Boolean;

description
Specifies the code page used to encode the non-Unicode string properties on this Message object. ( (PR_MESSAGE_CODEPAGE))

parameters

MAPIMessage - IMessage
LocaleID - Cardinal

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procedure ClearMsgBodyPart(const MAPIMessage: IMessage);

description
Deletes all body parts as Plain, RTF, HTML. Do not call it when Message Store reside inside Exchange Server.

parameters

MAPIMessage - IMessage

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function SetMsgBodyPlain(const MAPIMessage: IMessage; Stream: TStream): Boolean;

description
Set the message plain text body (PR_BODY). The value for Stream must be expressed in the code page of the operating system that MAPI is running on.

parameters

MAPIMessage - IMessage
Stream - TStream. Text body.

usage

Stream := TMemoryStream.Create;
try
    Memo.Lines.SaveToStream(Stream {$IFDEF DELPHI2009}, TEncoding.Unicode {$ENDIF});
    if Stream.Size > 0 then
        SetMsgBodyPlain(FMAPIMessage, Stream);
finally
    FreeAndNil(Stream);
end;

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function SetMsgBodyRtf(const MAPIMessage: IMessage; Stream: TStream): Boolean;

description
Set the message plain RTF body (PR_RTF_COMPRESSED). RTF is always ASCII.

parameters

MAPIMessage - IMessage
Stream - TStream. RTF uncompressed stream.

usage

Stream := TMemoryStream.Create;
try
    // RTF is always ASCII
    RichEdit.Lines.SaveToStream(Stream {$IFDEF DELPHI2009}, TEncoding.Ascii {$ENDIF});
    if Stream.Size > 0 then
        SetMsgBodyRTF(FMAPIMessage, Stream);
finally
    FreeAndNil(Stream);
end;

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function SetMsgBodyHtml(const MAPIMessage: IMessage; Stream: TStream): Boolean;

description
Set the message HTML text (PR_HTML).

parameters

MAPIMessage - IMessage
Stream - TStream. HTML stream.

usage

Stream := TMemoryStream.Create;
try
    SaveDocToStream(WebBrowser, Stream); // MAPIBestBody.pas; WebBrowser - TWebBrowser
    NormalizeHTMLStream(Stream);  // if Stream is <> from ASCII, convert it to UTF-8
    if Stream.Size > 0 then
        SetMsgBodyHtml(FMAPIMessage, Stream);
finally
    FreeAndNil(Stream);
end;

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function SaveMsg(const MAPIMessage: IMessage): Boolean;

description
Makes permanent any changes that were made to a message.

parameters

MAPIMessage - IMessage

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procedure SubmitMsg(const MAPIMessage: IMessage);

description
Saves all of the message's properties and marks the message as ready to be sent

parameters

MAPIMessage - IMessage

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procedure DeleteMsgAttachment(const MAPIMessage: IMessage; const AttachmentID: Cardinal; const Permanent: Boolean = False);

description
Deletes an Attachment

parameters

MAPIMessage - IMessage
AttachmentID - Unique attachment ID
Permanent - A deleted attachment is not permanently deleted if Permanent is False. In case of Permanent = False you need to call function SaveMsg after that. 

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procedure DeleteMsg(const MAPIMessage: IMessage; const OwnerFolder: IMAPIFolder);

description
Deletes message from the current folder

parameters

MAPIMessage -IMessage
OwnerFolder - IMAPIFolder

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procedure GetMsgAfterSendAction(const MAPIMessage: IMessage; out MoveToSentItems: Boolean; out Delete: Boolean);

description
Get information how to be processed a Sent Message

parameters

MAPIMessage - IMessage
MoveToSentItems - Boolean. If TRUE, moves the message to the Sent Items folder.
Delete - Boolean. If TRUE, deletes the message

The following table describes how these values affect what you do with sent messages.

If neither property is set: Leave the message in the folder from which it was sent (typically the Outbox).
MoveToSentItems is TRUE Move the message to the Sent Items folder
Delete is TRUE Delete the message

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procedure SetMsgAfterSendAction(const DefaultMsgStore: IMsgStore; const MAPIMessage: IMessage; const MoveToSentItems: Boolean = True);

description
Set information how to be processed a Sent Message

parameters

DefaultMsgStore - Default for current MAPI session IMsgStore
MAPIMessage - IMessage
MoveToSentItems - Boolean. If TRUE, moves the message to the Sent Items folder.
Delete - Boolean. If TRUE, deletes the message

The following table describes how these values affect what you do with sent messages.

If neither property is set: Leave the message in the folder from which it was sent (typically the Outbox).
MoveToSentItems is TRUE Move the message to the Sent Items folder
Delete is TRUE Delete the message

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procedure ShowHTMLBodyRendered(const MAPIMessage: IMessage; const WebBrowser: TWebBrowser);

description
Show HTML Body in TWebBrowser

parameters

MAPIMessage - IMessage
WebBrowser - TWebBrowser

usage

ShowHTMLBodyRendered(FMAPIMessage, WebBrowser);

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function ShowCustomSize(Value: Cardinal): string;

description
 For internal use

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procedure ShowModalMessage(const MAPISession: IMAPISession; const MsgStore: IMsgStore; const MAPIFolder: IMAPIFolder; const MAPIMessage: IMessage; const UIParam: ULONG_PTR = 0; const MsgFlag: ULONG = MAPI_POST_MESSAGE);

description
 Displays a message form

parameters

MAPISession: IMAPISession 
MsgStore: IMsgStore
MAPIFolder: IMAPIFolder
MAPIMessage: IMessage
UIParam: ULONG_PTR = 0
MsgFlag: ULONG = MAPI_POST_MESSAGE

 

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