(PureBasic) Transition from MailMan.GetHeaders to MailMan.FetchRange

Provides instructions for replacing deprecated GetHeaders method calls with FetchRange.

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

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkEmailBundle.pb"
IncludeFile "CkMailMan.pb"

Procedure ChilkatExample()

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

    ; ...
    ; ...

    numBodyLines.i = 3
    fromIndex.i = 0
    toIndex.i = 9

    ; ------------------------------------------------------------------------
    ; The GetHeaders method is deprecated:

    bundleObj.i = CkMailMan::ckGetHeaders(mailman,numBodyLines,fromIndex,toIndex)
    If CkMailMan::ckLastMethodSuccess(mailman) = 0
        Debug CkMailMan::ckLastErrorText(mailman)
        CkMailMan::ckDispose(mailman)
        ProcedureReturn
    EndIf

    ; ...
    ; ...

    CkEmailBundle::ckDispose(bundleObj)

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

    keepOnServer.i = 1
    headersOnly.i = 1

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

    success.i = CkMailMan::ckFetchRange(mailman,keepOnServer,headersOnly,numBodyLines,fromIndex,toIndex,bundleOut)
    If success = 0
        Debug CkMailMan::ckLastErrorText(mailman)
        CkMailMan::ckDispose(mailman)
        CkEmailBundle::ckDispose(bundleOut)
        ProcedureReturn
    EndIf



    CkMailMan::ckDispose(mailman)
    CkEmailBundle::ckDispose(bundleOut)


    ProcedureReturn
EndProcedure