Visual FoxPro

Compress Bytes to Base64 (or any other encoding)

See more Compression Examples

Compresses bytes to base64 or any other encoding. Also decompress to return the original. Visual FoxPro

LOCAL lnSuccess
LOCAL loBinData
LOCAL i
LOCAL loCompress
LOCAL loUncompressedBytes
LOCAL lcCompressedBase64
LOCAL lcCompressedHex
LOCAL loBinData2

lnSuccess = 0

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

* First create some binary data to compress.
loBinData = CreateObject('Chilkat.BinData')

FOR i = 1 TO 16
    loBinData.AppendEncoded("000102030405060708090A0B0C0D0E0F","hex")
NEXT

loCompress = CreateObject('Chilkat.Compression')
loCompress.Algorithm = "deflate"
loCompress.EncodingMode = "base64"

loUncompressedBytes = loBinData.GetBinary()

* Compress and return the compressed bytes in base64 format.
lcCompressedBase64 = loCompress.CompressBytesENC(loUncompressedBytes)
? "compressed and base64 encoded: " + lcCompressedBase64

* Compress and return in hex format:
loCompress.EncodingMode = "hex"
lcCompressedHex = loCompress.CompressBytesENC(loUncompressedBytes)
? "compressed and hex encoded: " + lcCompressedHex

* Now decompress..
loBinData2 = CreateObject('Chilkat.BinData')

* Decompress the base64..
loCompress.EncodingMode = "base64"
loUncompressedBytes = loCompress.DecompressBytesENC(lcCompressedBase64)
loBinData2.AppendBinary(loUncompressedBytes)
* Show the uncompressed bytes in hex format:
? loBinData2.GetEncoded("hex")
? "--"

* Decompress the hex..
loCompress.EncodingMode = "hex"
loUncompressedBytes = loCompress.DecompressBytesENC(lcCompressedHex)
loBinData2.Clear()
loBinData2.AppendBinary(loUncompressedBytes)
* Show the uncompressed bytes in hex format:
? loBinData2.GetEncoded("hex")
? "--"

RELEASE loBinData
RELEASE loCompress
RELEASE loBinData2