OpenEuphoria

1. How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by Dan_M Jul 11, 2009
• 1203 views

How can I run a Euphoria program FROM a Euphoria program,
when the 2nd program (the one to be run from within the initial Eu program),
requires parameters?

I was trying to "wrap" R. M. Forno's file compare program(s) (diff11.ex, etc) with a Windows GUI,
so I could compare versions of apps without having to type the file names,
as is required with his cmd interface.

So I tried shellExecuteEx, as follows:

     scode = shellExecuteEx ( "open", "ex.exe", 
       {aCompare, FirstFile, SecondFile  }, 0,SW_NORMAL , 0) 

where aCompare was one of selected diff11.ex, diff21.ex, etc, file compare programs,
and FirstFile and SecondFile were the results of getOpenFileName,
intended to be the parameters of the specified file compare program:

  FirstFile = getOpenFileName(Window1,"",{"Euphoria Windows Programs","*.exw", "Euphoria dos","*.ex"}) 
  setText(EditText8, FirstFile) 

and I got the following error: C:\Programming\EUPHORIA\Libraries\Win32Lib_60_5\Include\w32support.e:1228 in function w32acquire_mem() sequence to be poked must only contain atoms

but when I put the (suspect?) "FirstFile" & "SecondFile" into text boxes to see
what they were, they looked like nothing but a sequence of the path/file name.

So, what's wrong with how I'm doing it, and what should I be doing?

Dan

3. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by DerekParnell (admin) Jul 11, 2009
• 1188 views

Looking at the docs now, I can see why you did what you did. The docs are misleading so I'll fix that.

5. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by Dan_M Jul 11, 2009
• 1167 views

     scode = shellExecuteEx ( "open", "ex.exe", 
       sprintf("%s %s %s", {aCompare, FirstFile, SecondFile}), 0,SW_NORMAL , 0) 

Two more questions: What are the error codes, numerically, for shellExecuteEx,or where are they defined?

and, what if the path/file name includes SPACES in the path, how do I specify that so that a DOS program can handle it?

Dan

7. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by DerekParnell (admin) Jul 11, 2009
• 1209 views

1. The error codes are documented here. However there is a bug in the function. Instead of returning the error code, it returns !0 if it succeeds and 0 if it fails. I'll fix this too.
2. You should be able to use spaces in the file string without problems ...

res = shellExecuteEx("open", "c:\\program files\\myapps\\special app.exe", ...) 

9. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by Dan_M Jul 11, 2009
• 1204 views

res = shellExecuteEx("open", "c:\\program files\\myapps\\special app.exe", ...) 

On this machine, I'm running Win32Lib 0.60.5, under Eu 2.5, and when I run my "wrap", I get a return code of 5, and NOTHING seems to happen.

When I put a wait_key() at the end of one of the file compares, in case it was displaying in cmd window too quickly to see, I see NOTHING. That's why I was thinking maybe spaces in path made the file compare not run when executed by shellExecuteEx.

And the "diffxx.ex" file compares are in same folder as the GUI "wrap".

Any suggestions on debug?

Dan

11. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by Dan_M Jul 11, 2009
• 1205 views

ok, I'll try what I was doing on another machine with later version of Win32Lib, 70 something, & see what happens.

Here's what I was doing:

--  code generated by Win32Lib IDE v0.20.1 
 
  
include Win32Lib.ew 
without warning 
 
-------------------------------------------------------------------------------- 
--  Window Window1 
constant Window1 = createEx( Window, "File Compare Wrap", 0, Default, Default, 587, 356, 0, 0 ) 
constant StatusBar11 = createEx( StatusBar, "StatusBar11", Window1, 0, 0, 0, 0, 0, 0 ) 
constant PushButton4 = createEx( PushButton, "Pick First File", Window1, 228, 20, 88, 28, 0, 0 ) 
constant PushButton5 = createEx( PushButton, "Pick Second File", Window1, 360, 20, 88, 28, 0, 0 ) 
constant PushButton6 = createEx( PushButton, "Compare", Window1, 480, 20, 88, 28, 0, 0 ) 
constant LText3 = createEx( CText, "Select a Compare Utility To Use", Window1, 24, 24, 168, 20, 0, 0 ) 
constant List2 = createEx( List, "List2", Window1, 32, 52, 148, 120, 0, 0 ) 
constant LText7 = createEx( LText, "Compare:", Window1, 32, 196, 64, 20, 0, 0 ) 
constant EditText8 = createEx( EditText, "EditText8", Window1, 112, 196, 652, 20, w32or_all({ES_READONLY}), 0 ) 
constant EditText10 = createEx( EditText, "EditText10", Window1, 112, 228, 656, 20, w32or_all({ES_READONLY}), 0 ) 
constant LText9 = createEx( LText, "With:", Window1, 32, 232, 64, 20, 0, 0 ) 
--------------------------------------------------------- 
-------------------------------------------------------------------------------- 
sequence FirstFile, SecondFile 
integer Index 
-------------------------------------------------------------------------------- 
procedure Window1_onActivate (integer self, integer event, sequence params)--params is () 
  addItem(List2, "diff11.ex") 
  addItem(List2, "diff21.ex") 
  addItem(List2, "diff30.ex") 
  addItem(List2, "diff40.ex") 
  addItem(List2, "diff50.ex") 
 
end procedure 
setHandler( Window1, w32HActivate, routine_id("Window1_onActivate")) 
-------------------------------------------------------------------------------- 
procedure PushButton4_onClick (integer self, integer event, sequence params)--params is () 
  FirstFile = getOpenFileName(Window1,"",{"Euphoria Windows Programs","*.exw", "Euphoria dos","*.ex"}) 
  setText(EditText8, FirstFile) 
end procedure 
setHandler( PushButton4, w32HClick, routine_id("PushButton4_onClick")) 
-------------------------------------------------------------------------------- 
procedure PushButton5_onClick (integer self, integer event, sequence params)--params is () 
   SecondFile = getOpenFileName(Window1,"",{"Euphoria Windows Programs","*.exw", "Euphoria dos","*.ex"}) 
   setText(EditText10, SecondFile) 
end procedure 
setHandler( PushButton5, w32HClick, routine_id("PushButton5_onClick")) 
-------------------------------------------------------------------------------- 
procedure PushButton6_onClick (integer self, integer event, sequence params)--params is () 
  integer scode 
  sequence aCompare 
--For versions 1.1 and 5.0, the syntax is as follows: 
--ex diffnn <file1> <file2> [<option>] [<time_limit>] 
 
--For versions 2.1, 3.0 and 4.0, the syntax is as follows: 
--ex diffnn <file1> <file2> [<option>] 
 
 
  if Index = 1 or Index = 5  then 
     aCompare = "diff11.ex" 
  elsif Index = 2 then 
     aCompare = "diff21.ex" 
  elsif Index = 3 then 
     aCompare = "diff30.ex" 
  elsif Index = 4 then 
     aCompare = "diff40.ex" 
  elsif Index = 5 then 
     aCompare = "diff50.ex" 
  end if 
 
     scode = shellExecuteEx ( "open", "ex.exe", 
       sprintf("%s %s %s", {aCompare, FirstFile, SecondFile}),  0,SW_NORMAL , 0) 
 
    setText(StatusBar11, sprint(scode)) 
 
end procedure 
setHandler( PushButton6, w32HClick, routine_id("PushButton6_onClick")) 
-------------------------------------------------------------------------------- 
procedure List2_onChange (integer self, integer event, sequence params)--params is () 
 
    Index = getIndex(List2) 
 
 
end procedure 
setHandler( List2, w32HChange, routine_id("List2_onChange")) 
 
 
WinMain( Window1,Maximize ) 
 

Dan

13. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by euphoric (admin) Jul 11, 2009
• 1187 views

Put the path in quotes.

So something like

x = "\"" & thePath & "\"" 

15. Re: How to run Eu pgm FROM Eu pgm, with PARAMETERS (for 2nd Eu pgm)

• Posted by Dan_M Jul 11, 2009
• 1172 views

x = "\"" & thePath & "\"" 

argh, should have THOUGHT first, you're absolutly right, sigh.
Not SLASHES, QUOTES ESCAPED BY SLASH!
And thanks!

Dan