Visual Basic 6.0

Multimodal Input: File Data

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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.

Visual Basic 6.0

Dim success As Long
success = 0

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

Dim ai As New ChilkatAi

' 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.
ai.Provider = "claude"

' Use your provider's API key.
ai.ApiKey = "MY_API_KEY"

' Choose a model.
ai.Model = "claude-opus-4-1-20250805"

' Add both text input, and PDF file data.
success = ai.InputAddText("What is in this file?")

Dim bd As New ChilkatBinData
' We're passing a relative local file path here.. (relative the the app's current working directory)
success = bd.LoadFile("qa_data/pdf/shakespeare.pdf")
If (success = 0) Then
    Debug.Print bd.LastErrorText
    Exit Sub
End If

' Provide the filename in the 1st argument.  The file extension is important to indicate the type of file.
success = ai.InputAddFileData("shakespeare.pdf",bd,"")

' Ask the AI for text output.
success = ai.Ask("text")
If (success = 0) Then
    Debug.Print ai.LastErrorText
    Exit Sub
End If

' Get the text response.
Dim sbResponse As New ChilkatStringBuilder
success = ai.GetOutputTextSb(sbResponse)
Debug.Print sbResponse.GetAsString()

' -------------------------------------------------------------
' 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.