Solved

Overwrite Files..

Posted on 2001-07-10
13
1,559 Views
Last Modified: 2007-12-19
I am copying dirs with the code above:
This code is copying dirs from time to time. But when it finds the file with the same name it asks overwrite? But i want to skip this part and automatically overwrite all files. How can i do this?


Procedure CopyDir(fromDir, toDir : String);
var
fileOp: TShFileOpStruct;
begin
FillChar(fileOp, Sizeof(TShFileOpStruct), 0);
fromDir := fromDir + '\*.*'#0;
toDir := toDir + #0;
with fileOp do begin
  wnd := Application.Handle;
  wfunc := FO_COPY;
  pFrom := PChar(fromDir);
  pTo := PChar(toDir);
  fFlags := FOF_ALLOWUNDO;
  fAnyOperationsAborted := false;
  hNameMappings := nil;
  lpszProgressTitle := nil;
end;
SHFileOperation(fileOp);
end;

// The Call:

CopyDir(Form1.Memo1.Text, Form1.Memo2.Text);
0
Comment
Question by:sophiesas
  • 6
  • 3
  • 3
  • +1
13 Comments
 
LVL 13

Expert Comment

by:Epsylon
ID: 6268790
Use this:

fFlags := FOF_ALLOWUNDO or FOF_SILENT or FOF_NOCONFIRMATION;
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6268795
0
 
LVL 5

Expert Comment

by:TheNeil
ID: 6268800
Have you tried adding FOF_NOCONFIRMATION to the fFlags property of the fileOp structure? It's Windows that's asking for confirmation and if you need to get around it then you might have to forget about using the API call and write your own dedicated code (not too tough BTW)

The Neil =:)
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6268803
Maybe you want to leave out FOF_SILENT....
0
 
LVL 2

Expert Comment

by:egono
ID: 6270008
just for my interest - does the SHFileOperation() return immediatly or does it wait until all files copied?
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6270067
As long as you use non-relative path names you can more or less count on it. The filesystem knows which files/dirs are being deleted, copied, etc.
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 2

Expert Comment

by:egono
ID: 6270121
Epsylon - was your last comment a answer for my question? if yes - sorry I don't get it, does it return immediatly or not?
if not - don't mind ...
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6270245
Sorry for the confusion, it was a reply to you egono.

The MSN docs say that when you use relative path names, it's not thread safe. This means that when a process/thread does a fileoperation, another may not see that correctly. Use ExpandUNCFileName to create a qualitied path.

In other words, SHFileOperation can return before the modification are done physically, but the filesystem/shell keeps track of (caches) these modifications.
0
 

Author Comment

by:sophiesas
ID: 6272301
i can't get it work please add you comments to my code..
0
 

Author Comment

by:sophiesas
ID: 6272303
Please give examples...

Thankx
0
 
LVL 13

Accepted Solution

by:
Epsylon earned 50 total points
ID: 6272519
Procedure CopyDir(fromDir, toDir : String);
var
fileOp: TShFileOpStruct;
begin
  FillChar(fileOp, Sizeof(fileOp), 0);
  fromDir := fromDir + '\*.*';
  toDir := toDir;
  with fileOp do begin
    wnd := Application.Handle;
    wfunc := FO_COPY;
    pFrom := PChar(fromDir + #0);
    pTo := PChar(toDir + #0);
    fFlags := FOF_ALLOWUNDO or FOF_NOCONFIRMATION;
    fAnyOperationsAborted := false;
    hNameMappings := nil;
    lpszProgressTitle := nil;
  end;
  SHFileOperation(fileOp);
end;
0
 
LVL 2

Expert Comment

by:egono
ID: 6272567
epsylon - thanks!
0
 

Author Comment

by:sophiesas
ID: 6277102
epsylon thanks very much..
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
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…
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…
I designed this idea while studying technology in the classroom.  This is a semester long project.  Students are asked to take photographs on a specific topic which they find meaningful, it can be a place or situation such as travel or homelessness.…

919 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

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now