Telegram Client

 Dependencies

TDLib requires other third-parties libraries: OpenSSL and ZLib. These libraries must be deployed with tdjson library. 

Windows versions requires VCRuntime which can be download from microsoft: https://www.microsoft.com/en-us/download/details.aspx?id=52685

 Creating your Telegram Application

In order to obtain an API id and develop your own application using the Telegram API you need to do the following:

• Sign up for Telegram using any application.
• Log in to your Telegram core: https://my.telegram.org.
• Go to API development tools and fill out the form.
• You will get basic addresses as well as the api_id and api_hash parameters required for user authorization.
• For the moment each number can only have one api_id connected to it.

These values must be set in Telegram.API property of Telegram component. In order to authenticate, you must set your phone number (with international code), example: 34699123456

The following parameters can be configured:

• ApplicationVersion: application version, example: 1.0
• DeviceModel: device model, example: desktop
• LanguageCode: user language code, example: en.
• SystemVersion: version of operating system, example: windows.

Once you have configured Telegram Component, you can set Active property to true and program will try to connect to Telegram. 

Code Sample 

oTelegram := TsgcTDLib_Telegram.Create(nil);
oTelegram.Telegram.API.ApiHash := 'your api hash';
oTelegram.Telegram.API.ApiId := 'your api id';
oTelegram.PhoneNumber := 'your phone number';
oTelegram.ApplicationVersion := '1.0';
oTelegram.DeviceModel := 'Desktop';
oTelegram.LanguageCode := 'en';
oTelegram.SystemVersion := 'Windows';
oTelegram.Active := true;

procedure OnAuthenticationCode(Sender: TObject; var Code: string);
begin
  Code := InputBox('Telegram Code', 'Introduce code', '');
end;

procedure OnMessageText(Sender: TObject; MessageText: TsgcTelegramMessageText);
begin
  Log('Message Received: ' + MessageText.Text);
end;

procedure OnConnectionStatus(Sender: TObject; const Status: string);
begin
  if Status = 'connectionStateReady' then
    oTelegram.SendTextMessage('1234', 'Hello Telegram!');
end;