Delphi DLL

Multimodal Input: File Data

See more AI Examples

Demonstrates sending a request that includes both text and PDF file data for the AI to analyze.

Note: At the time of writing this example, xAI, Perplexity, and DeepSeek do not have the ability to accept non-image multimodal data or URLs.

Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
ai: HCkAi;
bd: HCkBinData;
sbResponse: HCkStringBuilder;

begin
success := False;

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

ai := CkAi_Create();

// The provider can be "openai", "google", or "claude".
// At the time of writing this example, "deepseek", "xai", and "perplexity" do not have the ability to process non-image multimodal inputs.
// Support for additional providers will be added in future versions of Chilkat.
CkAi_putProvider(ai,'claude');

// Use your provider's API key.
CkAi_putApiKey(ai,'MY_API_KEY');

// Choose a model.
CkAi_putModel(ai,'claude-opus-4-1-20250805');

// Add both text input, and PDF file data.
CkAi_InputAddText(ai,'What is in this file?');

bd := CkBinData_Create();
// We're passing a relative local file path here.. (relative the the app's current working directory)
success := CkBinData_LoadFile(bd,'qa_data/pdf/shakespeare.pdf');
if (success = False) then
  begin
    Memo1.Lines.Add(CkBinData__lastErrorText(bd));
    Exit;
  end;

// Provide the filename in the 1st argument.  The file extension is important to indicate the type of file.
CkAi_InputAddFileData(ai,'shakespeare.pdf',bd,'');

// Ask the AI for text output.
success := CkAi_Ask(ai,'text');
if (success = False) then
  begin
    Memo1.Lines.Add(CkAi__lastErrorText(ai));
    Exit;
  end;

// Get the text response.
sbResponse := CkStringBuilder_Create();
CkAi_GetOutputTextSb(ai,sbResponse);
Memo1.Lines.Add(CkStringBuilder__getAsString(sbResponse));

// -------------------------------------------------------------
// The response is in markdown format.
// Also see Markdown to HTML Conversion Examples.
// -------------------------------------------------------------

// Sample output:

// This PDF file contains a famous quote from William Shakespeare's "Romeo and Juliet". The quote appears twice on the page:
// 
// "These violent delights have violent ends
// And in their triumph die, like fire and powder,
// Which as they kiss consume. The sweetest honey
// Is loathsome in his own deliciousness
// And in the taste confounds the appetite.
// Therefore love moderately; long love doth so;
// Too swift arrives as tardy as too slow."
// 
// The file also includes a portrait image of William Shakespeare. This particular quote is spoken by Friar Lawrence in the play, warning about the dangers of passionate, 
// immoderate love - suggesting that love that burns too intensely tends to burn out quickly, just as fire and gunpowder consume each other when they meet.

CkAi_Dispose(ai);
CkBinData_Dispose(bd);
CkStringBuilder_Dispose(sbResponse);

end;