BBC BASIC for Windows

BBC BASIC for Windows

General

General Board (Moderator: admin)

File exists

« Previous Topic | Next Topic »

Pages: 1

Author

Topic: File exists (Read 983 times)

MrStreet
New Member

member is offline

Posts: 8

Re: File exists
« Reply #9 on: Jun 8^th, 2011, 5:42pm »

Can't I create the NUL file using the usual OPENOUT and put it into the projects folder when the program creates it the first time?

Logged

admin
Administrator

member is offline

Posts: 1145

Re: File exists
« Reply #10 on: Jun 8^th, 2011, 8:17pm »

on Jun 8^th, 2011, 5:42pm, MrStreet wrote:

Can't I create the NUL file using the usual OPENOUT and put it into the projects folder when the program creates it the first time?

You can't create a NUL file - it's a forbidden file name. But since you are wanting to test for the existence of a directory which you have created yourself, why not simply store a file there specifically for the purpose? Because you know that file will always be there, you can simply test for it being present - you don't actually need to test for the existence of the directory itself!

Richard.

Logged

MrStreet
New Member

member is offline

Posts: 8

Re: File exists
« Reply #11 on: Jun 8^th, 2011, 8:19pm »

Many thanks again, Richard.

Logged

MrStreet
New Member

member is offline

Posts: 8

Re: File exists
« Reply #12 on: Jun 11^th, 2011, 11:24am »

I think I have fixed the problem using an on error local statement call to :-

Code:

      
      deffn_setupError
      if err=196 then
        rem  file exists error
        = false
      else
        if fn_FAULT_M(" I am sorry the following error occured during setup: "+LF$+LF$+report$+LF$+LF$+" Do you want to quit?") then
          = true
        else
          =false
        endif
      endif

Logged

Pages: 1


« Previous Topic \| Next Topic »