(PowerBuilder) Transition from Imap.FetchChunk to Imap.FetchRange

Provides instructions for replacing deprecated FetchChunk method calls with FetchRange.

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Imap
integer li_StartSeqNum
integer li_Count
oleobject loo_FailedSet
oleobject loo_FetchedSet
oleobject loo_BundleObj
integer li_HeadersOnly
oleobject loo_BundleOut
integer li_Success

loo_Imap = create oleobject
// Use "Chilkat_9_5_0.Imap" for versions of Chilkat < 10.0.0
li_rc = loo_Imap.ConnectToNewObject("Chilkat.Imap")
if li_rc < 0 then
    destroy loo_Imap
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// ...
// ...

li_StartSeqNum = 1
li_Count = 5

loo_FailedSet = create oleobject
// Use "Chilkat_9_5_0.MessageSet" for versions of Chilkat < 10.0.0
li_rc = loo_FailedSet.ConnectToNewObject("Chilkat.MessageSet")

loo_FetchedSet = create oleobject
// Use "Chilkat_9_5_0.MessageSet" for versions of Chilkat < 10.0.0
li_rc = loo_FetchedSet.ConnectToNewObject("Chilkat.MessageSet")

// ------------------------------------------------------------------------
// The FetchChunk method is deprecated:

loo_BundleObj = loo_Imap.FetchChunk(li_StartSeqNum,li_Count,loo_FailedSet,loo_FetchedSet)
if loo_Imap.LastMethodSuccess = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_FailedSet
    destroy loo_FetchedSet
    return
end if

// ...
// ...

destroy loo_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.

li_HeadersOnly = 0

loo_BundleOut = create oleobject
// Use "Chilkat_9_5_0.EmailBundle" for versions of Chilkat < 10.0.0
li_rc = loo_BundleOut.ConnectToNewObject("Chilkat.EmailBundle")

li_Success = loo_Imap.FetchRange(li_HeadersOnly,li_StartSeqNum,li_Count,loo_BundleOut)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_FailedSet
    destroy loo_FetchedSet
    destroy loo_BundleOut
    return
end if



destroy loo_Imap
destroy loo_FailedSet
destroy loo_FetchedSet
destroy loo_BundleOut