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(VB.NET UWP/WinRT) Gzip Compress In Memory and Base64 EncodeDemonstrates how to Gzip compress in-memory data and then encode the compressed data to base64.
' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim gzip As New Chilkat.Gzip ' This example will load a file into the fileData object. ' Your application might load fileData from other sources.. Dim fileData As New Chilkat.BinData Dim success As Boolean = fileData.LoadFile("qa_data/xml/hamlet.xml") If (success <> True) Then Debug.WriteLine("Failed to load file.") Exit Sub End If ' In-place compress the contents of fileData success = Await gzip.CompressBdAsync(fileData) If (success <> True) Then Debug.WriteLine(gzip.LastErrorText) Exit Sub End If ' Get the base64 encoded compressed data (in a single line). Dim strBase64 As String = fileData.GetEncoded("base64") Debug.WriteLine(strBase64) Debug.WriteLine("--------") ' To get the base64 in multiple lines, as it might appear in MIME, ' use "base64-mime". Dim strBase64MultiLine As String = fileData.GetEncoded("base64-mime") Debug.WriteLine(strBase64MultiLine) |
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