Chilkat v11.6.0 / v11.6.1 Release Notes
See Release Notes for Versions 11.6.0 and 11.6.1
Chilkat v11.5.0 Release Notes
✨ New Features HttpCurl A new Chilkat class has been added: HttpCurl The Chilkat.HttpCurl class executes curl commands and can automatically resolve dependent values needed by a request. Variables such as {{access_token}}, {{site_id}}, or {{drive_id}} may appear in URLs, headers, query parameters, or request bodies. If a variable is not yet known, HttpCurl builds […]
Chilkat v11.4.0 Release Notes
✨ New Features Js A new Chilkat class has been added: Js is a minimal, standards-compliant JavaScript engine designed to embed JavaScript inside applications with very small footprint and fast startup. It executes JavaScript code inside an application without requiring a browser or large runtime. See About the Chilkat.Js JavaScript Engine Ai Provider — […]
VB6 – SHA-1 Hash and Base64 Encode
Private Sub Command1_Click() Dim crypt As New ChilkatCrypt2 success = crypt.UnlockComponent(“30-day trial”) If (success = 0) Then MsgBox crypt.LastErrorText Exit Sub End If Dim plainText As String plainText = “To be SHA-1 hashed…” crypt.EncodingMode = “base64” ‘ Hash the string and base64-encode in 1-Step Text1.Text = crypt.HashStringENC(plainText) ‘ Now do it in 2-steps. Should produce […]
C++ String Compression: PPMD, Deflate, BZip2, LZW
This C++ example demonstrates string compression using four different compression algorithms: PPMD, Deflate, BZip2, and LZW. void TestCompression(const char *algorithm) { CkCompression comp; comp.put_Algorithm(algorithm); printf (“algorithm: %s\n”,algorithm); CkByteData compressedData; comp.CompressString(“abc abc abc abc abc abc abc abc abc abc abc 123 123 abc 123”,compressedData); // Get the compressed data: const unsigned char *pCompressedData = compressedData.getBytes(); […]
Multipart/signed Email Handling
When a signed and/or encrypted email is loaded from a file or downloaded from a mail server, it is automatically verified and/or decrypted. The results are stored in various properties of the email object, and the email object is available in its unencrypted/unsigned form. This means that your application can process signed/encrypted emails in the […]
Forcing Web Server to Deliver Fresh (Non-Cached) Response
To force a web server to send a fresh copy (not a cached copy) of the requested document, add a “Pragma: non-cache” HTTP header to the request. If sending a HTTP GET request via these methods: QuickGet, QuickGetStr, Download, etc., then add the Pragma header by calling httpObject.SetRequestHeader(“Pragma”,”no-cache”) prior to sending the GET. If the […]
ActiveX – Object to DLL Mapping
This table shows which objects are contained in which DLLs. If you use an object in the left-hand column of the table, then you need to deploy the corresponding DLL in the right-hand column. AppSettings ChilkatUtil.dll
Zip Compress JPG?
Question: May I know that which Zip method in your component could give the best compression? We are trying to Zip some JPEG, and perhaps could reduce the size by half or more. Answer: The JPG file format is already a compressed format, so usually very little is gained in trying to compress it — […]
VB.NET Compress String to Byte Array
Demonstrates how to use Chilkat.Compression to compress a string to a byte array: Private Sub CompressStringToBytes() Dim compress As New Chilkat.Compression() ‘ Any string argument automatically begins a 30-day trial. Dim success As Boolean success = compress.UnlockComponent(“30-day trial”) If (success <> True) Then MsgBox(“Compression component unlock failed”) Exit Sub End If ‘ Use the “deflate” […]
UnlockComponent or UnlockBundle returns False/0
If UnlockComponent or UnlockBundle fails, check the following. (For more information about how UnlockComponent works, please read this: How UnlockComponent works. You must pass the exact unlock code provided in your receipt email. The unlock code is case sensitive. If you are confident that you are passing the correct unlock code to UnlockComponent (or UnlockBundle), […]
Where are trial versions?
The downloads at http://www.chilkatsoft.com/downloads.asp are the full-versions of the products, but may also be used in a fully-functional 30-day trial mode. A Chilkat component/class is unlocked at runtime by calling the UnlockComponent method. This method must be called once from within your application prior to using any Chilkat objects. It is not required to call […]
Unlocking Chilkat SFTP
To use Chilkat SFTP (Secure File Transfer over SSH) you must use the unlock code for Chilkat SSH. It should contain the substring “SSH”. If your unlock code contains the string “FTP”, then you are using the FTP2 unlock code, which is incorrect. The SFTP component/API is part of the “Chilkat SSH” license: “SFTP” is […]