Chilkat Examples

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Delphi ActiveX Examples

ASN.1
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Bounced Email
Box
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
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Email Object
Encryption
FTP
Facebook
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Google APIs
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Gzip
HTML-to-XML/Text
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HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
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JSON Web Token (JWT)
Java KeyStore (JKS)
Jira

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MIME
Microsoft Graph
NTLM
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OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
PayPal
Peoplevox
QuickBooks
REST
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SCP
SFTP
SMTP
SSH
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SharePoint
Shopify
Socket/SSL/TLS
Spider
Stream
Stripe
SugarCRM
Tar Archive
Twitter
Upload
VoiceBase
Walmart
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Xero
Zip
curl
eBay

 

 

 

(Delphi ActiveX) Compress Bytes to Base64 (or any other encoding)

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

Chilkat for Delphi Downloads

Chilkat ActiveX DLL for Delphi

Chilkat non-ActiveX DLL for Delphi

* The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
binData: TChilkatBinData;
i: Integer;
compress: TChilkatCompression;
uncompressedBytes: Array of Byte;
compressedBase64: WideString;
compressedHex: WideString;
binData2: TChilkatBinData;

begin
//  This example requires the Chilkat API to have been previously unlocked.
//  See Compression UnlockComponent for sample code.

//  First create some binary data to compress.
binData := TChilkatBinData.Create(Self);

for i := 1 to 16 do
  begin
    binData.AppendEncoded('000102030405060708090A0B0C0D0E0F','hex');
  end;

compress := TChilkatCompression.Create(Self);
compress.Algorithm := 'deflate';
compress.EncodingMode := 'base64';

uncompressedBytes := binData.GetBinary();

//  Compress and return the compressed bytes in base64 format.
compressedBase64 := compress.CompressBytesENC(uncompressedBytes);
Memo1.Lines.Add('compressed and base64 encoded: ' + compressedBase64);

//  Compress and return in hex format:
compress.EncodingMode := 'hex';
compressedHex := compress.CompressBytesENC(uncompressedBytes);
Memo1.Lines.Add('compressed and hex encoded: ' + compressedHex);

//  Now decompress..
binData2 := TChilkatBinData.Create(Self);

//  Decompress the base64..
compress.EncodingMode := 'base64';
uncompressedBytes := compress.DecompressBytesENC(compressedBase64);
binData2.AppendBinary(uncompressedBytes);
//  Show the uncompressed bytes in hex format:
Memo1.Lines.Add(binData2.GetEncoded('hex'));
Memo1.Lines.Add('--');

//  Decompress the hex..
compress.EncodingMode := 'hex';
uncompressedBytes := compress.DecompressBytesENC(compressedHex);
binData2.Clear();
binData2.AppendBinary(uncompressedBytes);
//  Show the uncompressed bytes in hex format:
Memo1.Lines.Add(binData2.GetEncoded('hex'));
Memo1.Lines.Add('--');
end;

 

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