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Delphi DLL Web API Examples

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(Delphi DLL) List Yahoo Mail IMAP Mailboxes

See more Yahoo Mail Examples

List Yahoo Mail mailboxes.

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, Mailboxes, Imap, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
success: Boolean;
accessToken: PWideChar;
imap: HCkImap;
refName: PWideChar;
wildcardedMailbox: PWideChar;
mboxes: HCkMailboxes;
i: Integer;

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

// See Get Yahoo Mail OAuth2 Access Token for Desktop App 
// for sample code showing how to obtain a Yahoo Mail access token.

// In this example, our access token was previously saved to the following file which contains JSON like this:
// {
//   "access_token": "kCVQdnOdul...LHucA--",
//   "refresh_token": "AIenVXETSo0jklFBVkPS8vVm8E.Ej9ToRG.xDbDYmZ65WIs5t6CZhDrD",
//   "expires_in": 3600,
//   "token_type": "bearer",
//   "xoauth_yahoo_guid": "HGDQCVF5JB4YDOWHITQJFBHCWA"
// }

json := CkJsonObject_Create();
success := CkJsonObject_LoadFile(json,'qa_data/tokens/yahooMail.json');
if (success <> True) then
  begin
    Memo1.Lines.Add('Failed to load GMail access token file.');
    Exit;
  end;
accessToken := CkJsonObject__stringOf(json,'access_token');

// Do OAuth2 authentication by using the access token as the password in the Login method below...
imap := CkImap_Create();

CkImap_putSsl(imap,True);
CkImap_putPort(imap,993);

// Connect to the Yahoo IMAP server.
success := CkImap_Connect(imap,'imap.mail.yahoo.com');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Indicate that XOAUTH2 authentication is to be used:
CkImap_putAuthMethod(imap,'XOAUTH2');

// Login
// Use the email address of the GMail account that granted authorization.
success := CkImap_Login(imap,'user@yahoo.com',accessToken);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
  end
else
  begin
    Memo1.Lines.Add('Successfully authenticated with Yahoo IMAP using XOAUTH2!');
  end;

// The ListMailboxes method returns a Mailboxes object
// that contains the collection of mailboxes.
// It accepts two arguments: a refName and a wildcardedMailbox.

refName := '';
// refName is usually set to an empty string.
// A non-empty reference name argument is the name of a mailbox or a level of
// mailbox hierarchy, and indicates the context in which the mailbox
// name is interpreted.

// Select all mailboxes matching this pattern:
wildcardedMailbox := '*';

mboxes := CkImap_ListMailboxes(imap,refName,wildcardedMailbox);
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

i := 0;
while i < CkMailboxes_getCount(mboxes) do
  begin
    Memo1.Lines.Add(CkMailboxes__getName(mboxes,i));
    i := i + 1;
  end;

// Sample output looks like this:

// Archive
// Bulk Mail
// Draft
// Inbox
// Inbox/emailsWithAttach
// Inbox/test
// Sent
// Trash

// Disconnect from the IMAP server.
success := CkImap_Disconnect(imap);

CkMailboxes_Dispose(mboxes);

CkJsonObject_Dispose(json);
CkImap_Dispose(imap);

end;

 

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