VB.NET

QuickGetBd Example

The QuickGetBd method is called to send a GET request to download a binary target, such as PDF, zip, image file, etc. into a Chilkat BinData object. VB.NET

Dim success As Boolean = False

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

Dim http As New Chilkat.Http
http.KeepResponseBody = True

Dim bd As New Chilkat.BinData

' Download the contents of a PDF file into the bd object.
success = http.QuickGetBd("https://www.chilkatsoft.com/hello.pdf",bd)
If (success = False) Then
    ' This will happen if the response status code was 400 or greater,
    ' or if the request could not be sent, or if no response was received.
    ' 
    ' In other words, success will only be True if bd contains the desired content at the URL (not an error response).
    Dim statusCode As Integer = http.LastStatus
    Debug.WriteLine("Response status: " & statusCode)

    If (statusCode = 0) Then
        ' There was an error in communications.  
        Debug.WriteLine(http.LastErrorText)
    Else
        ' We received a response status code indicating failure.
        ' Examine the response body.
        Debug.WriteLine(http.LastResponseBody)
    End If


    Exit Sub
End If


' Load the downloaded PDF into a Chilkat PDF object.
Dim pdf As New Chilkat.Pdf
success = pdf.LoadBd(bd)
If (success = False) Then
    Debug.WriteLine(pdf.LastErrorText)
    Exit Sub
End If


' ...

Debug.WriteLine("Success.")