Работа через MAPI
01.01.2007
Работа через MAPI
Пример с delphi.mastak.ru мне понравился(который нашел Song), я решил его сюда скопировать, может кому понадобится:
unit Email;
interface
uses Windows, SusUtils, Classes;
function SendEmail(const RecipName, RecipAddress, Subject, Attachment: string): Boolean;
function IsOnline: Boolean;
implementation
uses Mapi;
function SendEmail(const RecipName, RecipAddress, Subject, Attachment: string): Boolean;
var
MapiMessage: TMapiMessage;
MapiFileDesc: TMapiFileDesc;
MapiRecipDesc: TMapiRecipDesc;
i: integer;
s: string;
begin
with MapiRecipDesc do
begin
ulResved:= 0;
ulRecipClass:= MAPI_TO;
lpszName:= PChar(RecipName);
lpszAddress:= PChar(RecipAddress);
ulEIDSize:= 0;
lpEntryID:= nil;
end;
with MapiFileDesc do
begin
ulReserved:= 0;
flFlags:= 0;
nPosition:= 0;
lpszPathName:= PChar(Attachment);
lpszFileName:= nil;
lpFileType:= nil;
end;
with MapiMessage do
begin
ulReserved := 0;
lpszSubject := nil;
lpszNoteText := PChar(Subject);
lpszMessageType := nil;
lpszDateReceived := nil;
lpszConversationID := nil;
flFlags := 0;
lpOriginator := nil;
nRecipCount := 1;
lpRecips := @MapiRecipDesc;
if length(Attachment) > 0 then
begin
nFileCount:= 1;
lpFiles := @MapiFileDesc;
end
else
begin
nFileCount:= 0;
lpFiles:= nil;
end;
end;
Result:= MapiSendMail(0, 0, MapiMessage, MAPI_DIALOG or MAPI_LOGON_UI or MAPI_NEW_SESSION, 0) = SUCCESS_SUCCESS;
end;
function IsOnline: Boolean;
var
RASConn: TRASConn;
dwSize,dwCount: DWORD;
begin
RASConns.dwSize:= SizeOf(TRASConn);
dwSize:= SizeOf(RASConns);
Res:=RASEnumConnectionsA(@RASConns, @dwSize, @dwCount);
Result:= (Res = 0) and (dwCount > 0);
end;
end.
Взято с Vingrad.ru https://forum.vingrad.ru
Обычно в программах используется два способа отправки email. Первый - это "ShellExecute", а второй - через OLE server, как в Delphi 5. Однако, предлагаю посмотреть, как эта задача решается посредствам MAPI.
Совместимость: Delphi 4.x (или выше)
unit MapiControl;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;
type
{ Вводим новый тип события для получения Errorcode }
TMapiErrEvent = procedure(Sender: TObject; ErrCode: Integer) of object;
TMapiControl = class(TComponent)
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
private
{ Private-объявления }
FSubject: string;
FMailtext: string;
FFromName: string;
FFromAdress: string;
FTOAdr: TStrings;
FCCAdr: TStrings;
FBCCAdr: TStrings;
FAttachedFileName: TStrings;
FDisplayFileName: TStrings;
FShowDialog: Boolean;
FUseAppHandle: Boolean;
{ Error Events: }
FOnUserAbort: TNotifyEvent;
FOnMapiError: TMapiErrEvent;
FOnSuccess: TNotifyEvent;
{ +> Изменения, внесённые Eugene Mayevski [mailto:Mayevski@eldos.org]}
procedure SetToAddr(newValue : TStrings);
procedure SetCCAddr(newValue : TStrings);
procedure SetBCCAddr(newValue : TStrings);
procedure SetAttachedFileName(newValue : TStrings);
{ +< конец изменений }
protected
{ Protected-объявления }
public
{ Public-объявления }
ApplicationHandle: THandle;
procedure Sendmail();
procedure Reset();
published
{ Published-объявления }
property Subject: string read FSubject write FSubject;
property Body: string read FMailText write FMailText;
property FromName: string read FFromName write FFromName;
property FromAdress: string read FFromAdress write FFromAdress;
property Recipients: TStrings read FTOAdr write SetTOAddr;
property CopyTo: TStrings read FCCAdr write SetCCAddr;
property BlindCopyTo: TStrings read FBCCAdr write SetBCCAddr;
property AttachedFiles: TStrings read FAttachedFileName write SetAttachedFileName;
property DisplayFileName: TStrings read FDisplayFileName;
property ShowDialog: Boolean read FShowDialog write FShowDialog;
property UseAppHandle: Boolean read FUseAppHandle write FUseAppHandle;
{ события: }
property OnUserAbort: TNotifyEvent read FOnUserAbort write FOnUserAbort;
property OnMapiError: TMapiErrEvent read FOnMapiError write FOnMapiError;
property OnSuccess: TNotifyEvent read FOnSuccess write FOnSuccess;
end;
procedure Register;
implementation
uses Mapi;
{ регистрируем компонент: }
procedure Register;
begin
RegisterComponents('expectIT', [TMapiControl]);
end;
{ TMapiControl }
constructor TMapiControl.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FOnUserAbort := nil;
FOnMapiError := nil;
FOnSuccess := nil;
FSubject := '';
FMailtext := '';
FFromName := '';
FFromAdress := '';
FTOAdr := TStringList.Create;
FCCAdr := TStringList.Create;
FBCCAdr := TStringList.Create;
FAttachedFileName := TStringList.Create;
FDisplayFileName := TStringList.Create;
FShowDialog := False;
ApplicationHandle := Application.Handle;
end;
{ +> Изменения, внесённые Eugene Mayevski [mailto:Mayevski@eldos.org]}
procedure TMapiControl.SetToAddr(newValue : TStrings);
begin
FToAdr.Assign(newValue);
end;
procedure TMapiControl.SetCCAddr(newValue : TStrings);
begin
FCCAdr.Assign(newValue);
end;
procedure TMapiControl.SetBCCAddr(newValue : TStrings);
begin
FBCCAdr.Assign(newValue);
end;
procedure TMapiControl.SetAttachedFileName(newValue : TStrings);
begin
FAttachedFileName.Assign(newValue);
end;
{ +< конец изменений }
destructor TMapiControl.Destroy;
begin
FTOAdr.Free;
FCCAdr.Free;
FBCCAdr.Free;
FAttachedFileName.Free;
FDisplayFileName.Free;
inherited destroy;
end;
{ Сбрасываем все используемые поля}
procedure TMapiControl.Reset;
begin
FSubject := '';
FMailtext := '';
FFromName := '';
FFromAdress := '';
FTOAdr.Clear;
FCCAdr.Clear;
FBCCAdr.Clear;
FAttachedFileName.Clear;
FDisplayFileName.Clear;
end;
{ Эта процедура составляет и отправляет Email }
procedure TMapiControl.Sendmail;
var
MapiMessage: TMapiMessage;
MError: Cardinal;
Sender: TMapiRecipDesc;
PRecip, Recipients: PMapiRecipDesc;
PFiles, Attachments: PMapiFileDesc;
i: Integer;
AppHandle: THandle;
begin
{ Перво-наперво сохраняем Handle приложения, if not
the Component might fail to send the Email or
your calling Program gets locked up. }
AppHandle := Application.Handle;
{ Нам нужно зарезервировать память для всех получателей }
MapiMessage.nRecipCount := FTOAdr.Count + FCCAdr.Count + FBCCAdr.Count;
GetMem(Recipients, MapiMessage.nRecipCount * sizeof(TMapiRecipDesc));
try
with MapiMessage do
begin
ulReserved := 0;
{ Устанавливаем поле Subject: }
lpszSubject := PChar(Self.FSubject);
{ ... Body: }
lpszNoteText := PChar(FMailText);
lpszMessageType := nil;
lpszDateReceived := nil;
lpszConversationID := nil;
flFlags := 0;
{ и отправителя: (MAPI_ORIG) }
Sender.ulReserved := 0;
Sender.ulRecipClass := MAPI_ORIG;
Sender.lpszName := PChar(FromName);
Sender.lpszAddress := PChar(FromAdress);
Sender.ulEIDSize := 0;
Sender.lpEntryID := nil;
lpOriginator := @Sender;
PRecip := Recipients;
{ У нас много получателей письма: (MAPI_TO)
установим для каждого: }
if nRecipCount > 0 then
begin
for i := 1 to FTOAdr.Count do
begin
PRecip^.ulReserved := 0;
PRecip^.ulRecipClass := MAPI_TO;
{ lpszName should carry the Name like in the
contacts or the adress book, I will take the
email adress to keep it short: }
PRecip^.lpszName := PChar(FTOAdr.Strings[i - 1]);
{ Если Вы используете этот компонент совместно с Outlook97 или 2000
(не Express версии) , то Вам прийдётся добавить
'SMTP:' в начало каждого (email-) адреса.
}
PRecip^.lpszAddress := PChar('SMTP:' + FTOAdr.Strings[i - 1]);
PRecip^.ulEIDSize := 0;
PRecip^.lpEntryID := nil;
Inc(PRecip);
end;
{ То же самое проделываем с получателями копии письма: (CC, MAPI_CC) }
for i := 1 to FCCAdr.Count do
begin
PRecip^.ulReserved := 0;
PRecip^.ulRecipClass := MAPI_CC;
PRecip^.lpszName := PChar(FCCAdr.Strings[i - 1]);
PRecip^.lpszAddress := PChar('SMTP:' + FCCAdr.Strings[i - 1]);
PRecip^.ulEIDSize := 0;
PRecip^.lpEntryID := nil;
Inc(PRecip);
end;
{ ... тоже самое для Bcc: (BCC, MAPI_BCC) }
for i := 1 to FBCCAdr.Count do
begin
PRecip^.ulReserved := 0;
PRecip^.ulRecipClass := MAPI_BCC;
PRecip^.lpszName := PChar(FBCCAdr.Strings[i - 1]);
PRecip^.lpszAddress := PChar('SMTP:' + FBCCAdr.Strings[i - 1]);
PRecip^.ulEIDSize := 0;
PRecip^.lpEntryID := nil;
Inc(PRecip);
end;
end;
lpRecips := Recipients;
{ Теперь обработаем прикреплённые к письму файлы: }
if FAttachedFileName.Count > 0 then
begin
nFileCount := FAttachedFileName.Count;
GetMem(Attachments, MapiMessage.nFileCount * sizeof(TMapiFileDesc));
PFiles := Attachments;
{ Во первых установим отображаемые на экране имена файлов (без пути): }
FDisplayFileName.Clear;
for i := 0 to FAttachedFileName.Count - 1 do
FDisplayFileName.Add(ExtractFileName(FAttachedFileName[i]));
if nFileCount > 0 then
begin
{ Теперь составим структурку для прикреплённого файла: }
for i := 1 to FAttachedFileName.Count do
begin
{ Устанавливаем полный путь }
Attachments^.lpszPathName := PChar(FAttachedFileName.Strings[i - 1]);
{ ... и имя, отображаемое на дисплее: }
Attachments^.lpszFileName := PChar(FDisplayFileName.Strings[i - 1]);
Attachments^.ulReserved := 0;
Attachments^.flFlags := 0;
{ Положение должно быть -1, за разьяснениями обращайтесь в WinApi Help. }
Attachments^.nPosition := Cardinal(-1);
Attachments^.lpFileType := nil;
Inc(Attachments);
end;
end;
lpFiles := PFiles;
end
else
begin
nFileCount := 0;
lpFiles := nil;
end;
end;
{ Send the Mail, silent or verbose:
Verbose means in Express a Mail is composed and shown as setup.
In non-Express versions we show the Login-Dialog for a new
session and after we have choosen the profile to use, the
composed email is shown before sending
Silent does currently not work for non-Express version. We have
no Session, no Login Dialog so the system refuses to compose a
new email. In Express Versions the email is sent in the
background.
}
if FShowDialog then
MError := MapiSendMail(0, AppHandle, MapiMessage, MAPI_DIALOG or MAPI_LOGON_UI or MAPI_NEW_SESSION, 0)
else
MError := MapiSendMail(0, AppHandle, MapiMessage, 0, 0);
{ Теперь обработаем сообщения об ошибках. В MAPI их присутствует достаточное.
количество. В этом примере я обрабатываю только два из них: USER_ABORT и SUCCESS,
относящиеся к специальным.
Сообщения, не относящиеся к специальным:
MAPI_E_AMBIGUOUS_RECIPIENT,
MAPI_E_ATTACHMENT_NOT_FOUND,
MAPI_E_ATTACHMENT_OPEN_FAILURE,
MAPI_E_BAD_RECIPTYPE,
MAPI_E_FAILURE,
MAPI_E_INSUFFICIENT_MEMORY,
MAPI_E_LOGIN_FAILURE,
MAPI_E_TEXT_TOO_LARGE,
MAPI_E_TOO_MANY_FILES,
MAPI_E_TOO_MANY_RECIPIENTS,
MAPI_E_UNKNOWN_RECIPIENT:
}
case MError of
MAPI_E_USER_ABORT:
begin
if Assigned(FOnUserAbort) then
FOnUserAbort(Self);
end;
SUCCESS_SUCCESS:
begin
if Assigned(FOnSuccess) then
FOnSuccess(Self);
end
else begin
if Assigned(FOnMapiError) then
FOnMapiError(Self, MError);
end;
end;
finally
{ В заключение освобождаем память }
FreeMem(Recipients, MapiMessage.nRecipCount * sizeof(TMapiRecipDesc));
end;
end;
{
Вопросы и замечания присылайте Автору.
}
end.
Взято из https://forum.sources.ru
uses ..., MAPI;
// отправка письма с вложением
// =============================================================================
function SendEMail(Handle: THandle; Mail: TStrings): Cardinal;
type
TAttachAccessArray = array [0..0] of TMapiFileDesc;
PAttachAccessArray = ^TAttachAccessArray;
var
MapiMessage: TMapiMessage;
Receip: TMapiRecipDesc;
Attachments: PAttachAccessArray;
AttachCount: Integer;
i1: integer;
FileName: string;
dwRet: Cardinal;
MAPI_Session: Cardinal;
WndList: Pointer;
begin
Result := 0;
dwRet := MapiLogon(Application.Handle,
nil,
nil,
MAPI_NEW_SESSION + MAPI_LOGON_UI,
0, @MAPI_Session);
if (dwRet <> SUCCESS_SUCCESS) then
begin
MessageBox(Handle,
PChar('Error while trying to send email'),
PChar('Error'),
MB_ICONERROR or MB_OK);
end
else
begin
FillChar(MapiMessage, SizeOf(MapiMessage), #0);
Attachments := nil;
FillChar(Receip, SizeOf(Receip), #0);
if Mail.Values['to'] <> '' then
begin
Receip.ulReserved := 0;
Receip.ulRecipClass := MAPI_TO;
Receip.lpszName := StrNew(PChar(Mail.Values['to']));
Receip.lpszAddress := StrNew(PChar('SMTP:' + Mail.Values['to']));
Receip.ulEIDSize := 0;
MapiMessage.nRecipCount := 1;
MapiMessage.lpRecips := @Receip;
end;
AttachCount := 0;
for i1 := 0 to MaxInt do
begin
if Mail.Values['attachment' + IntToStr(i1)] = '' then
break;
Inc(AttachCount);
end;
if AttachCount > 0 then
begin
GetMem(Attachments, SizeOf(TMapiFileDesc) * AttachCount);
for i1 := 0 to AttachCount - 1 do
begin
FileName := Mail.Values['attachment' + IntToStr(i1)];
Attachments[i1].ulReserved := 0;
Attachments[i1].flFlags := 0;
Attachments[i1].nPosition := ULONG($FFFFFFFF);
Attachments[i1].lpszPathName := StrNew(PChar(FileName));
Attachments[i1].lpszFileName :=
StrNew(PChar(ExtractFileName(FileName)));
Attachments[i1].lpFileType := nil;
end;
MapiMessage.nFileCount := AttachCount;
MapiMessage.lpFiles := @Attachments^;
end;
if Mail.Values['subject'] <> '' then
MapiMessage.lpszSubject := StrNew(PChar(Mail.Values['subject']));
if Mail.Values['body'] <> '' then
MapiMessage.lpszNoteText := StrNew(PChar(Mail.Values['body']));
WndList := DisableTaskWindows(0);
try
Result := MapiSendMail(MAPI_Session, Handle,
MapiMessage, MAPI_DIALOG, 0);
finally
EnableTaskWindows( WndList );
end;
for i1 := 0 to AttachCount - 1 do
begin
StrDispose(Attachments[i1].lpszPathName);
StrDispose(Attachments[i1].lpszFileName);
end;
if Assigned(MapiMessage.lpszSubject) then
StrDispose(MapiMessage.lpszSubject);
if Assigned(MapiMessage.lpszNoteText) then
StrDispose(MapiMessage.lpszNoteText);
if Assigned(Receip.lpszAddress) then
StrDispose(Receip.lpszAddress);
if Assigned(Receip.lpszName) then
StrDispose(Receip.lpszName);
MapiLogOff(MAPI_Session, Handle, 0, 0);
end;
end;
пример вызова:
procedure TForm1.Button1Click(Sender: TObject);
var
Mail: TStringList;
begin
Mail := TStringList.Create;
try
Mail.values['to'] := 'почтовый@адрес';
Mail.values['subject'] := 'Тема письма';
Mail.values['body'] := 'Любой текст письма';
Mail.values['attachment0'] := 'Путь к файлу';
sendEMail(Application.Handle, Mail);
finally
Mail.Free;
end;
end;
Взято из https://forum.sources.ru