Execution Path

[Bob Ruscoe]

Anyone know how to find out where a program was executed i.e. if the user typed c:\dr\myprog is it possible to extract the c:\dr information from the command line?

Cheers

[Peter Lameijn]

Haven't used it for a long time, but it should work....

function ExecPath$ public
  dim Temp as integer, TempPath as string   		'local variables
  TempPath = ""
  reg %ax, &h6200                                       'get PSP function
  call interrupt &h21                                   'call DOS
  def seg  = reg(%bx)                            	'load PSP segment
  temp    = peeki(&h2C)
  def seg = temp					'load env.tab segment
  TempPath = peek$(0,1024)
  def seg
  Temp     = instr(TempPath, chr$(0,0))
  if Temp then                                          'if found,add 4
    incr Temp, 4
    TempPath = mid$(TempPath,Temp,128)
    TempPath = extract$(TempPath, chr$(0))          	'startup directory
    do
      TempPath = left$(TempPath,len(TempPath)-1)        'cut string until
    loop until (right$(TempPath,1) = "\")               'first "\" separator
    if (mid$(TempPath,2,2) <> ":\") then TempPath = ""  'test if path valid
  end if
  ExecPath = ucase$(TempPath)
end function