Swift

Compress Bytes

See more Compression Examples

Demonstrates how to compress binary data. Swift

func chilkatTest() {
    var success: Bool = false

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

    let fac = CkoFileAccess()!

    var fileBytes: NSData
    fileBytes = fac.readEntireFile(path: "qa_data/bmp/big.bmp")
    if fac.lastMethodSuccess != true {
        print("\(fac.lastErrorText!)")
        return
    }

    let compress = CkoCompression()!
    compress.algorithm = "deflate"

    var compressedBytes: NSData
    compressedBytes = compress.compressBytes(bData: fileBytes)
    if compress.lastMethodSuccess != true {
        print("\(compress.lastErrorText!)")
        return
    }

    success = fac.writeEntireFile(path: "qa_output/compressedBmp.dat", fileData: compressedBytes)
    if fac.lastMethodSuccess != true {
        print("\(fac.lastErrorText!)")
        return
    }


}