Msg: Re: LFNs in vDosPlus

Hi Harry,

Like all other DOS platforms with LFN support, vDosPlus provides two set of DOS calls to do file-handling, one of them only supporting 8.3 names for compatibility purposes, and the other set supporting LFNs. XyWrite by itself only supported the former set of DOS calls, so there is no way for it to support LFNs directly. U2 on the other hand, makes use of the latter set of DOS calls, so that it is able to deal with LFNs directly in vDosPlus. In general, software that only supports the former set of DOS calls can only handle 8.3 names, and any software that makes use of the latter set of DOS calls can support LFNs (in addition to 8.3 names). Hope this clarifies things.

Wengier

On Tuesday, November 1, 2016 10:34 AM, Harry Binswanger wrote:

[This may have been intended by Carl as private]

My error: I was working in old XyWrite. The D family works in vDosPlus XyWrite.

Oh, so the LFNs are a DOS-level facility, and we need XyWrite to do its own
workaround. Makes sense. But for all I knew, XyWrite was simply calling
DOS/BIOS functions to do file-handling.

the D family seems to be the successor to the L family, which I could never
get to fully work on my system. I'm having the same problems, or worse,
with the D's. I will try to debug it.

>Wengier is a magician, not a miracle-worker. XyWrite does not know from
>LFNs. Use U2's DCA, DCD, et al.
>
>Sent from my Verizon Wireless 4G LTE Tablet