Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Got a load of file's I am converting to a different format, but I need to figure out the Percentage of space between the files before and after

Posted on 2004-03-25
8
Medium Priority
?
178 Views
Last Modified: 2010-04-05
I read the total file size of all the files I am converting, then loop through them and do the conversion and get the new size of all the files once complete.

So I end up with (in bytes)

StartSize := 956896475
EndSize  :=  25698

So ok, to get the percentage I do (I think) StartSize / EndSize = Percentage.

Is there anyway to do this on the fly with a progressbar?

So, I have the Startsize off ALL the files
I have the EndSize as each file is converted,

StartSize := 956896475
EndSize  :=  103

How can I get the percentage to set a progress bar up with?

Cheers
0
Comment
Question by:satmanuk
  • 4
  • 4
8 Comments
 
LVL 27

Expert Comment

by:kretzschmar
ID: 10675916
?? what will you display

a progress or a result
0
 
LVL 1

Author Comment

by:satmanuk
ID: 10675976
well, while the conversion is going on, i wanted to display a over-all progress bar of the results so far. But at the end, i want to just display the Total size before conversion and after and also a percentage of the difrence.
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 10676077
you formula should be

progessbar1.position := (CurrentProcessedEndSize / CurrentProcessedStartSize) * 100;

this could be called during and at end of your processing

for displaying the sizenumbers u could simple labels

meikl ;-)
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 1

Author Comment

by:satmanuk
ID: 10676153
ok, tried that, but get the following message.
Incompatable types: 'Integer' and 'extended'

I am having to use a int64 to hold the file size because it can get very large.
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 10676200
try to change it to

progessbar1.position := integer((CurrentProcessedEndSize / CurrentProcessedStartSize) * 100);

or

progessbar1.position := trunc((CurrentProcessedEndSize / CurrentProcessedStartSize) * 100);


0
 
LVL 1

Author Comment

by:satmanuk
ID: 10676275
EndSize and  StartSize are both INT64

Tried
progressbar1.position := trunc((EndSize / StartSize) * 100);

compiles and runs, but get a error
floatingpoint division by zero

With

progressbar1.position := integer((EndSize /StartSize) * 100);
i get the folowing compile error

[Error] Unit1.pas(201): Invalid typecast

0
 
LVL 27

Accepted Solution

by:
kretzschmar earned 900 total points
ID: 10676308
well, ok, your startsize seems to be 0 sometimes,
just change it to
if startsize <> 0 then
  progressbar1.position := trunc((EndSize / StartSize) * 100);

forget the integer alternative

meikl ;-)
0
 
LVL 1

Author Comment

by:satmanuk
ID: 10676340
cheers
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an anti-spam), the admin…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …
Suggested Courses

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question