Detecting File State

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  • glen
    #1

    Detecting File State

    I'm looking for a way to detect if another process has a file open before a
    second process tries to open it. I've looked into the FileAttr function but
    I'm not sure if detecting a read-only state is sufficient. Can anyone
    confirm or deny? TIA...


    Tags: None
    • Roger
      #2
      Re: Detecting File State

      > I'm looking for a way to detect if another process has a file open before
      a

      Make certain you know it exists, then,
      Try to open the file exclusively,
      an error means it is in use.
      Good day,
      Roger


        Comment

        • Michael Kellogg
          #3
          Re: Detecting File State

          "Roger" <roger@pcsreven uecontrol.com> wrote:
          [color=blue][color=green]
          >> I'm looking for a way to detect if another process has a file open
          >> before a[/color]
          >
          > Make certain you know it exists, then,
          > Try to open the file exclusively,
          > an error means it is in use.[/color]

          I'm not proposing a better solution, but I'm pretty sure using error-
          trapping or exception handling to test for a thoroughly possible condition
          like this would not qualify as a "best practice"...

          --
          Michael Kellogg

            Comment

            • Cor Ligthert
              #4
              Re: Detecting File State

              Glen,

              This is endless asked, however this is as long as there are the MS-dos
              operating systems and its successors not possible when you don't create a
              special management tool around it, as probably in Office is done.

              Cor


                Comment

                • glen
                  #5
                  Re: Detecting File State

                  I have to agree. I'm thinking there must be a way to test the state of the
                  file for this condition. I just haven't found anything yet...

                  "Michael Kellogg" <mkellogg@WEDEL IVERcc3.com> wrote in message
                  news:Xns96228D5 919534mkelloggW EDELIVERcc3@207 .46.248.16...[color=blue]
                  > "Roger" <roger@pcsreven uecontrol.com> wrote:
                  >[color=green][color=darkred]
                  >>> I'm looking for a way to detect if another process has a file open
                  >>> before a[/color]
                  >>
                  >> Make certain you know it exists, then,
                  >> Try to open the file exclusively,
                  >> an error means it is in use.[/color]
                  >
                  > I'm not proposing a better solution, but I'm pretty sure using error-
                  > trapping or exception handling to test for a thoroughly possible condition
                  > like this would not qualify as a "best practice"...
                  >
                  > --
                  > Michael Kellogg[/color]


                    Comment

                    • glen
                      #6
                      Re: Detecting File State

                      It's 'The eternal question', then...

                      "Cor Ligthert" <notmyfirstname @planet.nl> wrote in message
                      news:uOkCTLEMFH A.1176@TK2MSFTN GP15.phx.gbl...[color=blue]
                      > Glen,
                      >
                      > This is endless asked, however this is as long as there are the MS-dos
                      > operating systems and its successors not possible when you don't create a
                      > special management tool around it, as probably in Office is done.
                      >
                      > Cor
                      >[/color]


                        Comment

                        • Cor Ligthert
                          #7
                          Re: Detecting File State

                          glen,

                          Answers on this are

                          do while loop condition = false
                          Try
                          Open a file
                          When found leave set the condition to true
                          Catch
                          threading.threa d.sleep(1000)
                          'And set a max if you want
                          End

                          I hope this helps something

                          Cor


                            Comment

                            • glen
                              #8
                              Re: Detecting File State

                              Interesting.... I'll try that. Thanks.

                              "Cor Ligthert" <notmyfirstname @planet.nl> wrote in message
                              news:uf5hMLIMFH A.3788@tk2msftn gp13.phx.gbl...[color=blue]
                              > glen,
                              >
                              > Answers on this are
                              >
                              > do while loop condition = false
                              > Try
                              > Open a file
                              > When found leave set the condition to true
                              > Catch
                              > threading.threa d.sleep(1000)
                              > 'And set a max if you want
                              > End
                              >
                              > I hope this helps something
                              >
                              > Cor
                              >[/color]


                                Comment

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