Debug code to upload an image file to ChatGPT

I have the following code written in an attempt to upload an image file to ChatGPT that can be read and understood along with accompanying text. It isn't working and need to get it to work.

' Function to extract an image path from a string
Function ExtractImagePath(ByVal text As String) As String
Dim regEx As Object
Dim matches As Object
Dim match As Object

' Create regex object
Set regEx = CreateObject("VBScript.RegExp")

' Set regex pattern to look for image paths
' This pattern looks for paths ending with .png, .jpg, .jpeg, or .bmp
regEx.Pattern = "(([a-zA-Z]:\\|\\\\)[^\s\\/:*?""<>|]+(\\[^\s\\/:*?"" 0 Then
ExtractImagePath = matches(0).Value
Else
ExtractImagePath = ""
End If

' Clean up
Set regEx = Nothing
Set matches = Nothing
End Function

' Function to read an image file and convert it to base64
Function GetBase64FromImage(ByVal filePath As String) As String
On Error GoTo ErrorHandler

Dim streamObj As Object
Dim bytes() As Byte

' Create ADODB.Stream object
Set streamObj = CreateObject("ADODB.Stream")

' Open the stream and read the file
With streamObj
.Type = 1 ' Binary
.Open
.LoadFromFile filePath
bytes = .Read
.Close
End With

' Convert binary data to base64
GetBase64FromImage = Base64Encode(bytes)

' Clean up
Set streamObj = Nothing
Exit Function

ErrorHandler:
GetBase64FromImage = ""
Debug.Print "Error reading image: " & Err.Description
End Function

' Function to encode binary data as base64
Function Base64Encode(ByRef arrData() As Byte) As String
Dim objXML As Object
Dim objNode As Object

' Create MSXML DOMDocument
Set objXML = CreateObject("MSXML2.DOMDocument")

' Create a base64 node
Set objNode = objXML.createElement("b64")

' Set the datatype to bin.base64
objNode.DataType = "bin.base64"

' Set the node value to the binary data
objNode.nodeTypedValue = arrData

' Get the base64 string
Base64Encode = objNode.text

' Clean up
Set objNode = Nothing
Set objXML = Nothing
End Function

' Debug function to test API connection and image handling
Sub DebugGPTResponse()
Dim testPrompt As String
Dim result As String
Dim errorMsg As String

On Error GoTo ErrorHandler

' Test prompt with an image path
testPrompt = "What can you see in this image? C:\Users\Images\test_image.png Please describe it in detail."

' Call the function
result = GetGPTResponse(testPrompt)

' Output success message with the response
MsgBox "Connection successful. Response: " & result
Exit Sub

ErrorHandler:
errorMsg = "Error " & Err.Number & ": " & Err.Description
MsgBox "Connection failed. " & errorMsg
End Sub