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(Delphi DLL) Append Part to MIME

Demonstrates the AppendPart method for adding sub-parts to MIME.

Chilkat for Delphi Downloads

Chilkat non-ActiveX DLL for Delphi

Chilkat ActiveX DLL for Delphi

* The examples here use the non-ActiveX DLL.

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
ptMime: HCkMime;
topLevelMime: HCkMime;
ptMime2: HCkMime;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Create a text/plain part.
ptMime := CkMime_Create();
CkMime_SetBodyFromPlainText(ptMime,'This is the plain text body');
Memo1.Lines.Add(CkMime__getMime(ptMime));
Memo1.Lines.Add('****');

// The ptMime contains:
// ---------------------------------------
// 	Content-Type: text/plain
// 	Content-Transfer-Encoding: 7bit
// 
// 	This is the plain text body
// ---------------------------------------

// Start with an empty MIME object...
topLevelMime := CkMime_Create();

// Initialize it to a multipart Content-Type.  We'll use multipart/mixed.
CkMime_NewMultipartMixed(topLevelMime);

// Append the ptMime as a child.
CkMime_AppendPart(topLevelMime,ptMime);
Memo1.Lines.Add(CkMime__getMime(topLevelMime));
Memo1.Lines.Add('****');

// The topLevelMime contains:
// --------------------------
// 	Content-Type: multipart/mixed; boundary="------------010907090104040508040404"
// 
// 	--------------010907090104040508040404
// 	Content-Type: text/plain
// 	Content-Transfer-Encoding: 7bit
// 
// 	This is the plain text body
// 	--------------010907090104040508040404--
// 

// IMPORTANT: A copy of the MIME passed in AppendPart is appended.
// Therefore, in this case, changing ptMime does not change the text/plain sub-part in topLevelMime.
// For example:
CkMime_SetBody(ptMime,'this is the new plain text body.');
// topLevelMime is unchanged.
Memo1.Lines.Add(CkMime__getMime(topLevelMime));
Memo1.Lines.Add('****');

// To change the content in topLevelMime, we must get the text/plain part.
// For example:
ptMime2 := CkMime_GetPart(topLevelMime,0);
CkMime_SetBody(ptMime2,'this is the new plain text body.');
CkMime_Dispose(ptMime2);
// Now topLevelMime is changed.
Memo1.Lines.Add(CkMime__getMime(topLevelMime));

CkMime_Dispose(ptMime);
CkMime_Dispose(topLevelMime);

end;

 

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