www.pudn.com > pop3cli.zip > MAILSND1.CPP


/*---------------------------------------------------------------------------// 
 
 
Author:       François PIETTE 
Object:       How to use TSmtpCli component 
Creation:     09 october 1997 
Version:      2.00 
EMail:        francois.piette@pophost.eunet.be   francois.piette@rtfm.be 
              http://www.rtfm.be/fpiette 
Support:      Use the mailing list twsocket@rtfm.be See website for details. 
Legal issues: Copyright (C) 1997, 1998 by François PIETTE 
              Rue de Grady 24, 4053 Embourg, Belgium. Fax: +32-4-365.74.56 
               
 
              This software is provided 'as-is', without any express or 
              implied warranty.  In no event will the author be held liable 
              for any  damages arising from the use of this software. 
 
              Permission is granted to anyone to use this software for any 
              purpose, including commercial applications, and to alter it 
              and redistribute it freely, subject to the following 
              restrictions: 
 
              1. The origin of this software must not be misrepresented, 
                 you must not claim that you wrote the original software. 
                 If you use this software in a product, an acknowledgment 
                 in the product documentation would be appreciated but is 
                 not required. 
 
              2. Altered source versions must be plainly marked as such, and 
                 must not be misrepresented as being the original software. 
 
              3. This notice may not be removed or altered from any source 
                 distribution. 
 
Updates: 
Oct 26, 1997  V1.00 Released 
Jan 10, 1998  V1.01 Added a Port property 
Feb 15, 1998  V1.02 Added file attachement support 
Mar 06, 1998  V1.03 Check for DisplayMemo overflow (100 lines allowed) 
Aug 03, 1998  V2.00 Revised for new asynchronous SMTP component version 
 
 
---------------------------------------------------------------------------*/ 
#include  
#include  
#pragma hdrstop 
 
#include "MailSnd1.h" 
#define SectionData   "Data" 
#define KeyHost       "HostName" 
#define KeyPort       "Port" 
#define KeyFrom       "From" 
#define KeyTo         "To" 
#define KeySubject    "Subject" 
#define KeySignOn     "SignOn" 
#define SectionWindow "Window" 
#define KeyTop        "Top" 
#define KeyLeft       "Left" 
#define KeyWidth      "Width" 
#define KeyHeight     "Height" 
 
//--------------------------------------------------------------------------- 
#pragma package(smart_init) 
#pragma link "SmtpProt" 
#pragma resource "*.dfm" 
TMailSndForm *MailSndForm; 
//--------------------------------------------------------------------------- 
__fastcall TMailSndForm::TMailSndForm(TComponent* Owner) 
    : TForm(Owner) 
{ 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::FormCreate(TObject *Sender) 
{ 
    Application->OnException = ExceptionHandler; 
    DisplayMemo->Clear(); 
    FIniFileName = LowerCase(ExtractFileName(Application->ExeName)); 
    FIniFileName = FIniFileName.SubString(1, FIniFileName.Length() - 3) + "ini"; 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::FormShow(TObject *Sender) 
{ 
    TIniFile *IniFile; 
 
    if (!FInitialized) { 
        FInitialized = TRUE; 
        IniFile = new TIniFile(FIniFileName); 
        HostEdit->Text    = IniFile->ReadString(SectionData, KeyHost, 
                                               "localhost"); 
        PortEdit->Text    = IniFile->ReadString(SectionData, KeyPort, 
                                               "smtp"); 
        FromEdit->Text    = IniFile->ReadString(SectionData, KeyFrom, 
                                               "first->last@company->com"); 
        ToEdit->Text      = IniFile->ReadString(SectionData, KeyTo, 
                                               "john->doe@acme;tartempion@brol->fr"); 
        SubjectEdit->Text = IniFile->ReadString(SectionData, KeySubject, 
                                               "This is the message subject"); 
        SignOnEdit->Text  = IniFile->ReadString(SectionData, KeySignOn, 
                                               "your name"); 
 
        Top    = IniFile->ReadInteger(SectionWindow, KeyTop,    (Screen->Height - Height) / 2); 
        Left   = IniFile->ReadInteger(SectionWindow, KeyLeft,   (Screen->Width - Width) / 2); 
        Width  = IniFile->ReadInteger(SectionWindow, KeyWidth,  Width); 
        Height = IniFile->ReadInteger(SectionWindow, KeyHeight, Height); 
 
        delete IniFile; 
    } 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::FormClose(TObject *Sender, TCloseAction &Action) 
{ 
    TIniFile *IniFile; 
 
    IniFile = new TIniFile(FIniFileName); 
    IniFile->WriteString(SectionData, KeyHost,      HostEdit->Text); 
    IniFile->WriteString(SectionData, KeyPort,      PortEdit->Text); 
    IniFile->WriteString(SectionData, KeyFrom,      FromEdit->Text); 
    IniFile->WriteString(SectionData, KeyTo,        ToEdit->Text); 
    IniFile->WriteString(SectionData, KeySubject,   SubjectEdit->Text); 
    IniFile->WriteString(SectionData, KeySignOn,    SignOnEdit->Text); 
    IniFile->WriteInteger(SectionWindow, KeyTop,    Top); 
    IniFile->WriteInteger(SectionWindow, KeyLeft,   Left); 
    IniFile->WriteInteger(SectionWindow, KeyWidth,  Width); 
    IniFile->WriteInteger(SectionWindow, KeyHeight, Height); 
    delete IniFile; 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::BuildRcptList(void) 
{ 
    AnsiString Buf; 
    int        I; 
 
    SmtpClient->RcptName->Clear(); 
    Buf = ToEdit->Text; 
    while (TRUE) { 
        I = Buf.Pos(";"); 
        if (I <= 0) { 
            SmtpClient->RcptName->Add(Trim(Buf)); 
            break; 
        } 
        else { 
            SmtpClient->RcptName->Add(Trim(Buf.SubString(1, I - 1))); 
            Buf.Delete(1, I); 
        } 
    } 
} 
//--------------------------------------------------------------------------- 
 
void __fastcall TMailSndForm::SmtpClientDisplay(TObject *Sender, AnsiString Msg) 
{ 
    //Memo boxes are not unlimited... 
    if (DisplayMemo->Lines->Count > 100) 
        DisplayMemo->Clear(); 
    DisplayMemo->Lines->Add(Msg); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::SmtpClientGetData(TObject *Sender, int LineNum, 
      PChar MsgLine, int MaxLen, bool &More) 
{ 
    int Len; 
 
    if (LineNum > MsgMemo->Lines->Count) 
        More = FALSE; 
    else { 
        Len = MsgMemo->Lines->Strings[LineNum - 1].Length(); 
        // Truncate the line if too long (should wrap to next line) 
        if (Len >= MaxLen) 
            strncpy(MsgLine, MsgMemo->Lines->Strings[LineNum - 1].c_str(), MaxLen - 1); 
        else 
            strcpy(MsgLine, MsgMemo->Lines->Strings[LineNum - 1].c_str()); 
    } 
} 
//--------------------------------------------------------------------------- 
 
void __fastcall TMailSndForm::SmtpClientHeaderLine(TObject *Sender, PChar Msg, 
      int Size) 
{ 
    // This demonstrate how to add a line to the message header 
    // Just detect one of the header lines and add text at the end of this 
    // line. Use \r\n to form a new line 
    // Here we check for the From: header line and add a Comments: line 
    if (strncmpi(Msg, "From:", 5) == 0) 
        strcat(Msg, "\r\nComments: This is a test"); 
} 
//--------------------------------------------------------------------------- 
 
void __fastcall TMailSndForm::ClearDisplayButtonClick(TObject *Sender) 
{ 
    DisplayMemo->Clear(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::ExceptionHandler(TObject *Sender, Exception *E) 
{ 
    Application->ShowException(E); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::ConnectButtonClick(TObject *Sender) 
{ 
    SmtpClient->Host = HostEdit->Text; 
    SmtpClient->Port = PortEdit->Text; 
    SmtpClient->Connect(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::HeloButtonClick(TObject *Sender) 
{ 
    SmtpClient->SignOn = SignOnEdit->Text; 
    SmtpClient->Helo(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::OpenButtonClick(TObject *Sender) 
{ 
    SmtpClient->Host   = HostEdit->Text; 
    SmtpClient->Port   = PortEdit->Text; 
    SmtpClient->SignOn = SignOnEdit->Text; 
    SmtpClient->Open(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::MailFromButtonClick(TObject *Sender) 
{ 
    SmtpClient->FromName = FromEdit->Text; 
    SmtpClient->MailFrom(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::RcptToButtonClick(TObject *Sender) 
{ 
    BuildRcptList(); 
    SmtpClient->RcptTo(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::DataButtonClick(TObject *Sender) 
{ 
    BuildRcptList(); 
    SmtpClient->HdrFrom         = FromEdit->Text; 
    SmtpClient->HdrTo           = ToEdit->Text; 
    SmtpClient->HdrSubject      = SubjectEdit->Text; 
    SmtpClient->EmailFiles      = FileAttachMemo->Lines; 
    SmtpClient->Data(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::MailButtonClick(TObject *Sender) 
{ 
    BuildRcptList(); 
    SmtpClient->HdrFrom         = FromEdit->Text; 
    SmtpClient->HdrTo           = ToEdit->Text; 
    SmtpClient->HdrSubject      = SubjectEdit->Text; 
    SmtpClient->SignOn          = SignOnEdit->Text; 
    SmtpClient->FromName        = FromEdit->Text; 
    SmtpClient->EmailFiles      = FileAttachMemo->Lines; 
    SmtpClient->Host            = HostEdit->Text; 
    SmtpClient->Port            = PortEdit->Text; 
    SmtpClient->Mail(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::QuitButtonClick(TObject *Sender) 
{ 
    SmtpClient->Quit(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::AbortButtonClick(TObject *Sender) 
{ 
    SmtpClient->Abort(); 
} 
//--------------------------------------------------------------------------- 
void __fastcall TMailSndForm::SmtpClientRequestDone(TObject *Sender, 
      TSmtpRequest RqType, WORD Error) 
{ 
    DisplayMemo->Lines->Add("RequestDone Rq=" + IntToStr(RqType) + 
                          " Error=" + IntToStr(Error)); 
} 
//---------------------------------------------------------------------------