How to launch a application with LUA script

**sosi** · October 4th, 2004, 04:54 PM

Hello,

ops: How to launch a application with LUA script

Thanks

**Promixis** · October 4th, 2004, 10:16 PM

execute ()

See attached.

Also see the lua systems function plugin

**sosi** · October 5th, 2004, 04:27 AM

:lol: Thanks for our reply Mike C, it's OK now

**Mastiff** · October 7th, 2004, 06:26 AM

What if I want to send a parameter at the same time that needs " around it? I have tried these two:

Code:

execute&#40;"C&#58;\\Windows\\notepad.exe" "d&#58;\\test.txt" &#41;

execute&#40;"C&#58;\\Windows\\notepad.exe .. "d&#58;\\test.txt"" &#41;

But it didn't work. I tried different versions of the " placings, but they didn't help either. Any advice?

**Mark F** · October 7th, 2004, 07:20 AM

try:

Code:

execute&#40;"C&#58;\\Windows\\notepad.exe d&#58;\\test.txt" &#41;

or

Code:

execute&#40;"C&#58;\\Windows\\notepad.exe".." ".."d&#58;\\test.txt" &#41;

If either (or both) of the values are in variables, use one of these:

Code:

-- assume&#58;
-- executable = "C&#58;\\Windows\\notepad.exe"
-- parameters = "d&#58;\\test.txt"

execute&#40;"C&#58;\\Windows\\notepad.exe "..parameters&#41; 
execute&#40;executable.." d&#58;\\test.txt"&#41; 
execute&#40;executable.." "..parameters&#41;

Please note that I have place a space between the executable and the parameters in each case.

**Mark F** · October 7th, 2004, 07:46 AM

After further review, I would use something like this:

Code:

execute&#40; "start " .. ExecuteableAndParameters &#41;

The start command spawns the application to run asynchronously. This allows the CMD window to close and Girder to continue processing events prior to the application completing.

If you use the stuff from my previous post, Girder will wait until notepad exits before processing any more events. If you use

Code:

execute&#40; "start C&#58;\\Windows\\notepad.exe d&#58;\\test.txt" &#41;

or

Code:

execute&#40; "start" .. " " .. "C&#58;\\Windows\\notepad.exe" .. " " .. "d&#58;\\test.txt" &#41;

or

Code:

-- assume&#58; 
-- executable = "C&#58;\\Windows\\notepad.exe" 
-- parameters = "d&#58;\\test.txt" 

execute&#40; "start " .. "C&#58;\\Windows\\notepad.exe " .. parameters &#41; 
execute&#40; "start " .. executable .. " d&#58;\\test.txt" &#41; 
execute&#40; "start " .. executable .. " " .. parameters &#41;

Girder will continue to process events while notepad is running.

**Mastiff** · October 7th, 2004, 07:48 AM

Talk about wizz!

Thanks, Mark! I only needed this one for now:

Code:

execute&#40; "start" .. " " .. "C&#58;\\Windows\\notepad.exe" .. " " .. "d&#58;\\test.txt" &#41;

And of course it works! :wink: I may find a good use for the parameter versions later, though. I'm about to clean up some home theater code. Thanks again!

**Mastiff** · October 7th, 2004, 08:06 AM

Btw should we go even further? Is it possible to execute the file hidden? So I don't see that quick flash of a window when i fire it up. It may disturb what I'm watching on the screen.

**Mark F** · October 7th, 2004, 08:20 AM

The LAU execute() command does not support this. However, the Execute command on the Girder OS tab does.

**Mastiff** · October 7th, 2004, 08:26 AM

Yes, I know. I was trying to tidy up so I didn't have to use two commands for each of these (there are a bunch of them), but as long as that's not possible, I'll have to use the Girder execute for the ones that are supposed to run while I'm watching anything.

Btw I thought it worked with the "'s, but it didn't. The parameter isn't sendt the correct way. The parameter for this program (not notepad) needs to be sendt within "parameter", and I think it only sends it with the first " . Can this be right?

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