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hide window of spawned daemon #113

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Jun 26, 2018
Merged

hide window of spawned daemon #113

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5 changes: 5 additions & 0 deletions ros2cli/ros2cli/node/daemon.py
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,11 @@ def spawn_daemon(args, wait_until_spawned=None):
# Process Creation Flag documented in the MSDN
DETACHED_PROCESS = 0x00000008 # noqa: N806
kwargs.update(creationflags=DETACHED_PROCESS)
# avoid showing cmd windows for subprocess
si = subprocess.STARTUPINFO()
si.dwFlags = subprocess.STARTF_USESHOWWINDOW
si.wShowWindow = subprocess.SW_HIDE
kwargs['startupinfo'] = si
# don't keep handle of current working directory in daemon process
kwargs.update(cwd=os.environ.get('SYSTEMROOT', None))
subprocess.Popen(cmd + [
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