(Lianja) Transition from MailMan.FetchSingleHeader to MailMan.FetchOne

Provides instructions for replacing deprecated FetchSingleHeader method calls with FetchOne.

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

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loMailman = createobject("CkMailMan")

// ...
// ...

lnNumBodyLines = 5
lnMsgnum = 1

// ------------------------------------------------------------------------
// The FetchSingleHeader method is deprecated:

loEmailObj = loMailman.FetchSingleHeader(lnNumBodyLines,lnMsgnum)
if (loMailman.LastMethodSuccess = .F.) then
    ? loMailman.LastErrorText
    release loMailman
    return
endif

// ...
// ...

release loEmailObj

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

llHeaderOnly = .T.

loEmailOut = createobject("CkEmail")
llSuccess = loMailman.FetchOne(llHeaderOnly,lnNumBodyLines,lnMsgnum,loEmailOut)
if (llSuccess = .F.) then
    ? loMailman.LastErrorText
    release loMailman
    release loEmailOut
    return
endif



release loMailman
release loEmailOut