CodeSign DataFlex Reference Documentation

CodeSign

Current Version: 10.1.2

A class for signing Windows executables and DLLs, and for verifying signed executables and DLLs. This is a Windows-only class. The class and functions will exist on non-Windows systems, but will be no-op functions (stubs) that simply return a failed status.

Object Creation

// (Dataflex programs use the 32-bit Chilkat ActiveX)
Handle hoCodeSign
Get Create(RefClass(cComChilkatCodeSign)) to hoCodeSign

Properties

DebugLogFilePath
Function ComDebugLogFilePath Returns String
Procedure Set ComDebugLogFilePath String value

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
top
LastBinaryResult
Function ComLastBinaryResult Returns Variant

This property is mainly used in SQL Server stored procedures to retrieve binary data from the last method call that returned binary data. It is only accessible if Chilkat.Global.KeepBinaryResult is set to True. This feature allows for the retrieval of large varbinary results in an SQL Server environment, which has restrictions on returning large data via method calls, though temp tables can handle binary properties.

top
LastErrorHtml
Function ComLastErrorHtml Returns String

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

top
LastErrorText
Function ComLastErrorText Returns String

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

top
LastErrorXml
Function ComLastErrorXml Returns String

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

top
LastMethodSuccess
Function ComLastMethodSuccess Returns Boolean
Procedure Set ComLastMethodSuccess Boolean value

Indicates the success or failure of the most recent method call: True means success, False means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages.

top
LastStringResult
Function ComLastStringResult Returns String

In SQL Server stored procedures, this property holds the string return value of the most recent method call that returns a string. It is accessible only when Chilkat.Global.KeepStringResult is set to TRUE. SQL Server has limitations on string lengths returned from methods and properties, but temp tables can be used to access large strings.

top
LastStringResultLen
Function ComLastStringResultLen Returns Integer

The length, in characters, of the string contained in the LastStringResult property.

top
UncommonOptions
Function ComUncommonOptions Returns String
Procedure Set ComUncommonOptions String value
Introduced in version 9.5.0.97

This is a catch-all property to be used for uncommon needs. This property defaults to the empty string and should typically remain empty.

Can be set to a list of the following comma separated keywords:

  • "codesign-allow-expired-cert" - Don't fail authenticode signature validation because the signing certificate is expired.

top
VerboseLogging
Function ComVerboseLogging Returns Boolean
Procedure Set ComVerboseLogging Boolean value

If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

top
Version
Function ComVersion Returns String

Version of the component/library, such as "10.1.0"

More Information and Examples
top

Methods

AddSignature
Function ComAddSignature String path cComChilkatCert cert cComChilkatJsonObject options Returns Boolean
Introduced in version 9.5.0.97

Authenticode signs a DLL or EXE.

Returns True for success, False for failure.

More Information and Examples
top
AddSignatureAsync (1)
Function ComAddSignatureAsync String path cComChilkatCert cert cComChilkatJsonObject options Returns cComChilkatTask
Introduced in version 9.5.0.97

Creates an asynchronous task to call the AddSignature method with the arguments provided.

Returns null on failure

top
GetSignerCert
Function ComGetSignerCert cComChilkatCert cert Returns Boolean
Introduced in version 10.0.1

This method retrieves the signer certificate after calling VerifySignature. If successful and the signer certificate is fully available, cert will contain the certificate.

Returns True for success, False for failure.

top
RemoveSignature
Function ComRemoveSignature String path Returns Boolean
Introduced in version 9.5.0.97

Removes the authenticode signature of a Windows executable or DLL. The path to the executable/DLL is passed in path.

Returns True for success, False for failure.

top
VerifySignature
Function ComVerifySignature String path cComChilkatJsonObject sigInfo Returns Boolean
Introduced in version 9.5.0.97

Verifies the signature of a Windows executable or DLL. The path to the executable/DLL is passed in path. Information about the signature is returned in sigInfo. Returns True if the signature is verified indicating the EXE or DLL can be trusted. Otherwise returns False.

Returns True for success, False for failure.

More Information and Examples
top