Question

the following is a line from a python program that calls the “demo.exe” file. a window for demo.exe opens when it is called, is there any way for demo.exe to run in the “background”? that is, i don’t want the window for it show, i just want demo.exe to run.

p = subprocess.Popen(args = "demo.exe", stdout = subprocess.PIPE)

the output of demo.exe is used by the python program in real time, so demo.exe is not something that i can have run in advance of running the python program. demo.exe handles a lot of on the fly back-end calculations. i'm using windows xp.

thanks in advance!

Answer 1

Thanks to another StackOverflow thread, I think this is what you need:

startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
p = subprocess.Popen(args = "demo.exe", stdout=subprocess.PIPE, startupinfo=startupinfo)

I tested on my Python 2.6 on XP and it does indeed hide the window.