OpenEuphoria

Re: Passing through ShellExecute

• Posted by Jason Mirwald <mirwalds at prodigy.net> Aug 05, 2002
• 516 views

Actually, I have been using ShellExecute in conjunction with the shared
memory library that Mario Steele and I wrote. I have found that this worked
good for passing parameters to the program that's run, but the parameters
are seperated by "white spaces" and you can't pass a zero, as the arguments
are null strings.

atom lpapp, lpparam, lpdir

  lpapp = alloc_sz("C:\\Euphoria\\bin\\exw.exe")
  lpparam = alloc_sz( "test.exw" & " " & "some-sequence-to-pass" )
  lpdir = alloc_sz( "C:\\Euphoria\\Windows\\" )

-- for an exe file, the above code would be;

--  lpapp = alloc_sz("test.exe")
--  lpparam = alloc_sz( "some-sequence-to-pass" )
--  lpdir = alloc_sz( "C:\\Euphoria\\Windows\\" )

  ack = ShellExecute({0,0,lpapp,lpparam,lpdir,SW_SHOWNORMAL})

Once the string is passed to the new application, you can use it to allocate
shared memory, and poke/peek data any way you want, in either direction.
Just be careful to use only the sm_dealloc() that's provided in the
memshare.ew library to release the memory in both applications when you're
done.

The latest version of memshare.ew can be found here:
http://pages.prodigy.net/mirwalds/memshare.zip

Jason

PS: alloc_sz() is the same as allocate_string().