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Everything eccoMAGIC >> Issues, Comments, and Questions >> emSpawn to launch webpage?
http://forums.eccoMAGIC.com/forum/YaBB.pl?num=1243585248

Message started by rb on 05/29/09 at 03:20:48

Title: emSpawn to launch webpage?
Post by rb on 05/29/09 at 03:20:48

I am trying to launch a URL from LUA and using emSpawn:

os.execute("emSpawn.exe /! http://msn.com")

Why do I need to close the DOS window before the Browser launches the page? I just want the page to open in the Browser...

Title: Re: emSpawn to launch webpage?
Post by Admin on 05/29/09 at 06:48:48

good question.

have not tested, so fill me in.

What dos window ?

if you test from cmd line, for example, works fine ?

just from the LUA execute is opening a dos window ?

does a "exit && emSpawn.exe ....etc..." do any better ?

Title: Re: emSpawn to launch webpage?
Post by rb on 05/29/09 at 12:25:13

With DOS window, I meant the Command window (cmd.exe).

Best explained with examples:

1.
os.execute("notepad.exe")
=> Opens a cmd window and Notepad. However, LUA is halted until notepad closed

2.
os.execute("emSpawn.exe / notepad.exe")
=> Doesn't work . I only get 2 cmd windows that opens/closes

3.
os.execute("emSpawn.exe /! notepad.exe")
=> Almost works as expected. Opens and closes a cmd window (unexpected), and then opens Notepad

Now, I would like to open a URL instead of Notepad.

4.
os.execute("emSpawn.exe /! http://msn.com")
=> Cmd window opens and execution halted. I need to close the window before the Browser URL is launched and execution continues

How would I open the Browser URL w/o having to close the cmd window?

Notes:

1. Not sure how to open a URL from cmd promt? Simply typing the URL doesn't work (actually surprised that example 4 works at all)

2. However, I can open a URL from Windows Start|Run by simply typing the URL

3. 1. I don't understand what you mean by
does a "exit && emSpawn.exe ....etc..." do any better ?

Title: Re: emSpawn to launch webpage?
Post by rb on 05/29/09 at 22:10:29

rb wrote:

With DOS window, I meant the Command window (cmd.exe).

1. Not sure how to open a URL from cmd promt? Simply typing the URL doesn't work (actually surprised that example 4 works at all)

To answer my own question:

start http://msn.com launches the URL in the Browser from cmd prompt.

Furthermore,
os.execute("start firefox.exe http://msn.com")

Opens the URL in the Browser w/o the need for emSpawn.exe

The cmd windows still opens briefly. Not sure if there is a way to hide this?

Title: Re: emSpawn to launch webpage?
Post by Alec_Burgess on 05/29/09 at 23:19:36

rb wrote:

[quote author=rb link=1243585248/0#2 date=1243617913]With DOS window, I meant the Command window (cmd.exe).

1. Not sure how to open a URL from cmd promt? Simply typing the URL doesn't work (actually surprised that example 4 works at all)

Start
/b
Starts an application without opening a new Command Prompt window. CTRL+C handling is ignored unless the application enables CTRL+C processing. Use CTRL+BREAK to interrupt the application.

Title: Re: emSpawn to launch webpage?
Post by rb on 05/30/09 at 00:33:33

Just tried your suggestion:
os.execute("start /b firefox.exe http://msn.com")
Still get the cmd window opening and closing.

Btw, I am executing the LUA command in EccoExt Expression Evaluate (opens by ctrl-alt-k)