The KeyCheck API is a collection of functions that allow you to
integrate the software protection and licensing system into your application.
It provides cross-platform support for both Windows and macOS. So you can
easily reuse the same code to develop and protect your application for Windows
and macOS. The API functions are listed in the tables below, which also
indicate the supported platforms. For more details, see the KeyCheck API
Reference.
Note that the functions can also be referred to by their hex name (e.g.
H33), in addition to their function name (e.g. OpenKeySrv). An advantage of
using the hex name is that the function name is rendered meaningless.
Decompilation would result in source code that is difficult to understand.
Using the hex name is recommended especially for .NET applications that
obfuscation is necessary to protect the code.
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Main Functions |
Windows/Mac |
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OpenKeySrv, H33 |
Loads an Agent. |
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CloseKeySrv, H34 |
Closes an Agent. |
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TerminateKeySrv, H99 |
Terminate the Agent. |
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SetKeyCache, H11 |
Sets the cache mode of the Agent. |
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GetErrStr, H35 |
Gets the string of Error Code returned
by the KeyCheck API functions. |
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Licensing Functions |
Windows/Mac |
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InitLicKey, H5A |
Initiates the Initial License Key. |
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InitLicKeyEx, H6A |
Initiates the Initial License Key with
Registration ID format setting. |
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CheckLicKey, H5C |
Checks the License Key in the Key. |
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PutLicKey, H5B |
Decodes the License Key into Key
Properties and puts them into the Key. |
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Key Interface Functions |
Windows/Mac |
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GetKeyProperties, H39 |
Gets Key Properties of the Key. |
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GetKeyData, H3A |
Gets 64-byte Key Data from the Key. |
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PutKeyData, H3B |
Puts 64-byte data to Key Data of the
Key. |
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UpdateLimitKey, H3C |
Checks and updates the limitations to
the Key. |
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SetBackgroundCheck, H37 |
Sets the locking system to check the Key
in background process. |
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ResultProc |
Application-defined callback function to
handle the result of checking the Key in background process. |
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Utility Functions |
Windows/Mac |
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TransferLicense, H5E |
Generates a new License Key for
transferring the license from one to another machine. |
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DestroyLicense, H5F |
Destroys the license of the Key. |
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RemakeLicense, H60 |
Remakes the license of the Key. |
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Security Enhancement Functions |
Windows/Mac |
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SetKeyValue, H78 |
Set the Key Value of the Key. |
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GetKeyValue, H79 |
Gets the value of the specified key. |
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Server Interface Functions |
Windows/Mac |
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NetKeyConnect, H46 |
Connects to the NetKey License Server. |
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NetKeyConnectAdv, H4C |
Connects the locked program to the
NetKey License Server using configuration file (NETKEY.INI). |
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NetKeyConnectEx, H4D |
Connects the locked program to the
NetKey License Server (supported fault tolerance). |
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NetKeyDisconnect, H47 |
Disconnects from the NetKey License
Server. |
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NetKeyLogin, H48 |
Logs the locked program in to the NetKey
License Server. |
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NetKeyLogout, H49 |
Logs the locked program out from the
NetKey License Server. |
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SetServerBackgroundCheck, H55 |
Sets the NetKey License Server to check
the Network Key in background process. |
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Instant Protection Function |
Windows |
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InstantProtection, H81 |
Instant function that processes the
System Image File to perform all the tasks needed to check the Key. |
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InstantProtectionAdv, H80 |
Advanced Instant Protection function, one-stop
method for handling and checking the Key by using System Image File for Local
Key and/or System Image File for Network Key. |
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