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delete file

I keep deleting one and the same file all over again.How can i programm it so the app. does it for me and after done it terminates automatucally.
Example is :
I keep deleting file:D:\Example\rubbish.dat
How am I tto make an simple app. so it does it for me.???
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Bosanac
Asked:
Bosanac
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1 Solution
 
CrazyOneCommented:
DeleteFile('D:\Example\rubbish.dat');
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CrazyOneCommented:
From Delphi help

Deletes a file from disk.

Unit

Sysutils

Category

file management routines

function DeleteFile(const FileName: string): Boolean;

Description

DeleteFile erases the file named by FileName from the disk. If the file cannot be deleted or does not exist, the function returns False.


The Crazy One
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CrazyOneCommented:
I put toghether an app that I run when the OS startups up to delete cookies and .tmp and various other files that I don't want hanging around on my system. Perhaps you might want do that as well. The DeleteFile function is real easy to use but make sure of what you are deleting when using it because the function does not use the Recycle Bin.
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Dennis9Commented:
Hi.
Just do this in the forms oncreate event:

///Example
procedure TForm1.FormCreate(Sender: TObject);
begin
DeleteFile('D:\Example\rubbish.dat');
Application.ProcessMessages;
Application.Terminate;
end;


Dennis
0
 
BosanacAuthor Commented:
Is this OK??

if FileExists('D:\Private') then begin
 DeleteFile('D:\Private');
  Application.terminate;
 end
 else  begin showmessage ('File does not exist !');
 application.processmessages;
 application.terminate;

 end;
end;
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Dennis9Commented:
This will work, u need to have the extension with it.

Var
str:string;

Begin
str:= 'D:\Example\rubbish.dat';

if FileExists(str) then
begin
DeleteFile(str);
application.processmessages;
Application.terminate;
end
else  
begin
showmessage ('File '+str+' does not exist!');
application.processmessages;
application.terminate;
end;

Dennis
0
 
CrazyOneCommented:
Hi Bosanac
Yes your code should work as long as Private is a file and not a folder. Personally this is the way I would do it.

var
     sFileToDel, sMsg: string;

begin
     sFileToDel := 'D:\Private';
     if not DeleteFile(sFileToDel) then begin

          if not FileExists(sFileToDel) then
               sMsg := 'File not found'
          else
               sMsg := 'Could not delete file';

          ShowMessage(sMsg);
     end;

end;    
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BosanacAuthor Commented:
Why is it that my form pops up during runtime (deleting or whatever...)though I declared form1.visible:=false????
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CrazyOneCommented:
Well this is the way I do it.

procedure TForm1.FormCreate(Sender: TObject);
begin
     Form1.Visible := False;
     try
          DoYourCode;
     finally
          Form1.Free;
     end;
end;
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CrazyOneCommented:
If the form is not the main form you could do it like this.

procedure TForm1.FormCreate(Sender: TObject);
begin
     Form1.Visible := False;
     try
          DoYourCode;
     finally
          Form1.Free;
              if not Application.Terminated then
               Application.Terminate;
     end;
end;
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