Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Delphi ActiveX Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Delphi ActiveX) Multipart/Alternative Email

It is very common for email to contain both plain-text and HTML alternative bodies. When a mail client such as Outlook, Eudora, or Thunderbird receives such an email, it will display one of the alternatives. The default is usually to display the HTML alternative. (In addition, the latest versions of email clients default to blocking HTML images from displaying for anti-SPAM reasons.) Emails with both plain-text and HTML alternative bodies are structured (in MIME) as multipart/alternative. The Chilkat Email component handles the MIME formatting of an email for you, so you don't have to worry about the details of the MIME composition. This example shows how to create an email with both plain-text and HTML alternative bodies.

Chilkat for Delphi Downloads

Chilkat ActiveX DLL for Delphi

Chilkat non-ActiveX DLL for Delphi

* The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
email: TChilkatEmail;
success: Integer;
email2: TChilkatEmail;

begin
email := TChilkatEmail.Create(Self);

// First, add the typical header fields...
email.Subject := 'This email has alternative bodies';
success := email.AddTo('Chilkat Support','support@chilkatsoft.com');
email.From := 'Matt <matt@chilkatsoft.com>';

// Setting the Body property makes a text/plain email:
email.Body := 'This is the plain-text body';

// At this point, our email is a simple plain/text email
// with no alternatives:
success := email.SaveEml('plainText.eml');

// Now add an HTML alternative:
success := email.AddHtmlAlternativeBody('<html><body>This is the <b>HTML body</b></body></html>');
success := email.SaveEml('plainTextAndHtml.eml');

// To create an HTML-only email, do this:
email2 := TChilkatEmail.Create(Self);

// First, add the typical header fields...
email2.Subject := 'This email has alternative bodies';
success := email2.AddTo('Chilkat Support','support@chilkatsoft.com');
email2.From := 'Matt <matt@chilkatsoft.com>';

email2.SetHtmlBody('<html><body>This is the <b>HTML body</b></body></html>');
success := email2.SaveEml('htmlOnly.eml');

// Add a plain-text alternative:
success := email2.AddPlainTextAlternativeBody('This is the plain-text body');
success := email2.SaveEml('plainTextAndHtml2.eml');

// To replace the plain-text alternative, just set the Body property:
email2.Body := 'This is the new plain-text body';

// To replace the HTML alternative, call SetHtmlBody:
email2.SetHtmlBody('<html><body>This is the new HTML body...</body></html>');

success := email2.SaveEml('plainTextAndHtml2a.eml');

// To determine if an email has a particular alternative body,
// call HasPlainTextBody or HasHtmlBody:
if (email2.HasPlainTextBody() = 1) then
  begin
    Memo1.Lines.Add('Has plain-text body!');
  end;
if (email2.HasHtmlBody() = 1) then
  begin
    Memo1.Lines.Add('Has HTML body!');
  end;
end;

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.