dynamic.py 文件源码

def _GetGoodDispatch(IDispatch, clsctx = pythoncom.CLSCTX_SERVER):
    # quick return for most common case
    if isinstance(IDispatch, PyIDispatchType):
        return IDispatch
    if isinstance(IDispatch, _GoodDispatchTypes):
        try:
            IDispatch = pythoncom.connect(IDispatch)
        except pythoncom.ole_error:
            IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.IID_IDispatch)
    else:
        # may already be a wrapped class.
        IDispatch = getattr(IDispatch, "_oleobj_", IDispatch)
    return IDispatch