Visual FoxPro

Decompress Bytes

See more Compression Examples

Demonstrates how to decompress binary data. Visual FoxPro

LOCAL lnSuccess
LOCAL loFac
LOCAL loCompressedBytes
LOCAL loCompress
LOCAL loDecompressedBytes

lnSuccess = 0

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

* See this example to compress bytes: Compress Bytes

loFac = CreateObject('Chilkat.FileAccess')

loCompressedBytes = loFac.ReadEntireFile("qa_data/compressed/compressedBmp.dat")
IF (loFac.LastMethodSuccess <> 1) THEN
    ? loFac.LastErrorText
    RELEASE loFac
    CANCEL
ENDIF

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

loDecompressedBytes = loCompress.DecompressBytes(loCompressedBytes)
IF (loCompress.LastMethodSuccess <> 1) THEN
    ? loCompress.LastErrorText
    RELEASE loFac
    RELEASE loCompress
    CANCEL
ENDIF

lnSuccess = loFac.WriteEntireFile("qa_output/decompressed.bmp",loDecompressedBytes)
IF (loFac.LastMethodSuccess <> 1) THEN
    ? loFac.LastErrorText
    RELEASE loFac
    RELEASE loCompress
    CANCEL
ENDIF

RELEASE loFac
RELEASE loCompress