(PureBasic) Transition from Email.GetSignedByCert to Email.LastSignerCert

Provides instructions for replacing deprecated GetSignedByCert method calls with LastSignerCert.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkEmail.pb"
IncludeFile "CkCert.pb"

Procedure ChilkatExample()

    email.i = CkEmail::ckCreate()
    If email.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; ...
    ; ...

    ; ------------------------------------------------------------------------
    ; The GetSignedByCert method is deprecated:

    certObj.i = CkEmail::ckGetSignedByCert(email)
    If CkEmail::ckLastMethodSuccess(email) = 0
        Debug CkEmail::ckLastErrorText(email)
        CkEmail::ckDispose(email)
        ProcedureReturn
    EndIf

    ; ...
    ; ...

    CkCert::ckDispose(certObj)

    ; ------------------------------------------------------------------------
    ; Do the equivalent using LastSignerCert.
    ; Your application creates a new, empty Cert object which is passed 
    ; in the last argument and filled upon success.

    certOut.i = CkCert::ckCreate()
    If certOut.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i = CkEmail::ckLastSignerCert(email,0,certOut)
    If success = 0
        Debug CkEmail::ckLastErrorText(email)
        CkEmail::ckDispose(email)
        CkCert::ckDispose(certOut)
        ProcedureReturn
    EndIf



    CkEmail::ckDispose(email)
    CkCert::ckDispose(certOut)


    ProcedureReturn
EndProcedure