Create a new process with the given flags and argument list.
The argument list is expected to be %NULL-terminated.
commandline arguments for the subprocess
flags that define the behaviour of the subprocess
A newly created #GSubprocess, or %NULL on error (and @error will be set)
GException on failure. ConstructionException GTK+ fails to create the object.
2.40
See Implementation
Create a new process with the given flags and argument list.
The argument list is expected to be %NULL-terminated.