microsoft.public.vb.general.discussion Google Group

How does Explorer find UNC files so fast?

just_a_...@home.net — Fri, 19 Mar 2010 05:57:16 UT

I have written and tested programs from others for a long time and
cannot find any way to get UNC files fast.
My program will find information on 2000 to 3000 files per second on a
USB drive but only return information on about 2 files per second.
What can I do to get a useful speed on UNC drives similar to Explorer's

Re: Which Endian routine is better?

n...@non.net (dpb) — Fri, 19 Mar 2010 05:05:36 UT

Well, now you're down to the point of what optimizations the compiler
uses and doesn't -- that's a tough 'un to know, a priori when the vendor
doesn't publish such things.
I'd make a guess that it doesn't see the empty loop because it's a
higher level than the unused variable or there was a design decision

Re: Which Endian routine is better?

tto...@telusplanet.net (Tony Toews [MVP]) — Fri, 19 Mar 2010 03:34:02 UT

You're showing your age. Errr, experience, yeah that's it experience.
Tony

Re: Delete file in a zip

tto...@telusplanet.net (Tony Toews [MVP]) — Fri, 19 Mar 2010 03:31:16 UT

Note that Winzip actually makes a copy of the zip file without the
deleted file and then deletes and renames the old file. Whether
utilities such as Info-zip work in a better fashion I have no idea.
Tony

Re: Copy File to Linux Server

nos...@noway.com (Webbiz) — Fri, 19 Mar 2010 03:33:59 UT

On Thu, 18 Mar 2010 15:25:00 -0700, Karl E. Peterson <k...@exmvps.org>
wrote:
This might be a reply that would shock you, but how in the world is
the F8 key going to teach me new technologies I'm not familiar with?
Now, if the F8 key would print out code for me after I've yelled the
question into the screen, that would be something else altogether. <g>

Re: Copy File to Linux Server

nos...@noway.com (Webbiz) — Fri, 19 Mar 2010 03:30:12 UT

On Thu, 18 Mar 2010 18:06:57 -0500, "Nobody" <nob...@nobody.com>
wrote:
Thanks amigo. :-)
Webbiz

Re: using CFileSearch by Ulrich Korndoerfer

ulrich_wants_nos...@prosource.de (Ulrich Korndoerfer) — Fri, 19 Mar 2010 02:06:40 UT

Hi,
mp schrieb:
Yes, definitions in principle should be kept in the same place that uses
them.
But CFileSearch as downloaded from my web site is intended to be used by
embedding its source into a normal exe. For this use case the UDT
definitions must be (and therefore are) declared public in a module (and

Re: Which Endian routine is better?

nob...@nobody.com (Nobody) — Fri, 19 Mar 2010 01:48:47 UT

When I test some code for speed, I divide the code over one or more events
because the compiler cannot know in advance which button or event will
happen next.

RE: What do you folks use to create icons?

b...@discussions.microsoft.com (Bee) — Fri, 19 Mar 2010 01:47:01 UT

Shareware
IconEdit Pro
[link]
easy to complex icon creation.

Re: Which Endian routine is better?

nob...@nobody.com (Nobody) — Fri, 19 Mar 2010 01:41:04 UT

I tested your code, but without t(3) and t(4). Yes it's a case of
optimization. I checked the assembly output and VB optimized the t(1) case
out of the loop because "wd" was not used. When the only change that I made
is moving "wd" from a local to a modal level variable, VB doesn't remove
what's inside the loop. Here is the output, followed by the assembly output

Re: Which Endian routine is better?

k...@exmvps.org (Karl E. Peterson) — Fri, 19 Mar 2010 00:54:28 UT

dpb wrote:
I didn't, no. That was my first guess, when I was using a fixed value
for dw, but I guess I just assumed that using the loop counter would've
tricked the compiler. Hmmmm, is it really *that* smart? I mean,
wouldn't it have seen that empty loop, too?
Interestingly, if I modify it to just a simple assignment within the

Re: Which Endian routine is better?

n...@non.net (dpb) — Fri, 19 Mar 2010 00:38:28 UT

...
My first guess would be the compiler was able to determine the dw
variable was never used so simply optimized it all away.
Did you check the generated code?

Re: Delete file in a zip

nob...@nowhere.edu (MikeD) — Fri, 19 Mar 2010 00:36:17 UT

I'm unclear what you're really asking. My best guess is that you want to
remove a file from a ZIP file. That's an entirely different thing than the
conventional "deleting a file". You're going to have to utilize some library
that lets you work with ZIP files. As "Nobody" mentioned, Info-Zip is a

Re: using CFileSearch by Ulrich Korndoerfer

k...@exmvps.org (Karl E. Peterson) — Fri, 19 Mar 2010 00:26:47 UT

mp wrote:
Probably comes down to personal style, in most cases. For me, there's
a tradeoff of complexity as the number of parameters increases. For
just a few, the class seems like overkill. For many more than that,
it's a blessing. (This is an internal interface, right? No binary
compatibility issues?)

Re: Which Endian routine is better?

k...@exmvps.org (Karl E. Peterson) — Fri, 19 Mar 2010 00:23:50 UT

Be prepared to be blown away. I *cannot* explain what I'm seeing here.
First off, running your code, what I got was very similar, as I said in
another post.
So, I decided I'd drop your timing method in favor of my own CStopWatch
([link]), and also rolled all the tests