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(VB.NET UWP/WinRT) Compress Bytes to Base64 (or any other encoding)Compresses bytes to base64 or any other encoding. Also decompress to return the original.
' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim success As Boolean ' First create some binary data to compress. Dim binData As New Chilkat.BinData Dim i As Integer For i = 1 To 16 binData.AppendEncoded("000102030405060708090A0B0C0D0E0F","hex") Next Dim compress As New Chilkat.Compression compress.Algorithm = "deflate" compress.EncodingMode = "base64" Dim uncompressedBytes() As Byte uncompressedBytes = binData.GetBinary() ' Compress and return the compressed bytes in base64 format. Dim compressedBase64 As String = Await compress.CompressBytesENCAsync(uncompressedBytes) Debug.WriteLine("compressed and base64 encoded: " & compressedBase64) ' Compress and return in hex format: compress.EncodingMode = "hex" Dim compressedHex As String = Await compress.CompressBytesENCAsync(uncompressedBytes) Debug.WriteLine("compressed and hex encoded: " & compressedHex) ' Now decompress.. Dim binData2 As New Chilkat.BinData ' Decompress the base64.. compress.EncodingMode = "base64" uncompressedBytes = Await compress.DecompressBytesENCAsync(compressedBase64) binData2.AppendBinary(uncompressedBytes) ' Show the uncompressed bytes in hex format: Debug.WriteLine(binData2.GetEncoded("hex")) Debug.WriteLine("--") ' Decompress the hex.. compress.EncodingMode = "hex" uncompressedBytes = Await compress.DecompressBytesENCAsync(compressedHex) binData2.Clear() binData2.AppendBinary(uncompressedBytes) ' Show the uncompressed bytes in hex format: Debug.WriteLine(binData2.GetEncoded("hex")) Debug.WriteLine("--") |
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