def getOOoInstance(self, headless):
# Just convert the document?
if not self._instance:
self._instance = OpenOfficeInstance(headless=True)
self._headless = headless
ctx = self._instance.getContext()
self._smgr = ctx.ServiceManager
self._desktop = self._smgr.createInstanceWithContext(
'com.sun.star.frame.Desktop', ctx)
