Finding the path of a file - How can you find the actual filepath of an application's messages file when its path has several possible answers, e.g. for !Printers, the filepath for the messages file uses Printers$Path which contains

Choices:Printers.,ADFS::HardDisc4.$.Apps.!Printers.,Resources:$.Resources.Printers.

Open the required file using SWI &0d,&41 using the filepath variable and the filename. This returns, in R0, the file handle (=0 if file not found)

Now use

SWI &09,7,fhandle,buffer,,,buflength TO ,,,,,nochrs

where buffer is reserved memory of say 1024 bytes, buflength = 1024 (max size of buffer), nochrs will equal the length of actual filepath.

This SWI will load the actual filepath in the buffer.

Now close the file.

Here is a Basic version.

REM Hint/Tip for finding actual path of a file
MODE28
DIM buf% 1024
path$=FNfindpath("Printers:","Messages",buf%,1024)
PRINT path$
END

DEF FNfindpath(p$,f$,b%,l%)
  LOCAL f%,e%,a$
  SYS &0D,&41,f$,p$ TO f%
  IF f%>0 THEN
    SYS &09,7,f%,b%,,,l% TO ,,,,,e%
    SYS &0D,0,f%
    b%?(l%-e%)=13
    e%=INSTR($b%,f$,1)-1:b%?e%=13
    a$=$b%
  ELSE
    ERROR 0,"File "+p$+f$+" not found"
  ENDIF
=a$