gencache.py 文件源码

def EnsureDispatch(prog_id, bForDemand = 1): # New fn, so we default the new demand feature to on!
    """Given a COM prog_id, return an object that is using makepy support, building if necessary"""
    disp = win32com.client.Dispatch(prog_id)
    if not disp.__dict__.get("CLSID"): # Eeek - no makepy support - try and build it.
        try:
            ti = disp._oleobj_.GetTypeInfo()
            disp_clsid = ti.GetTypeAttr()[0]
            tlb, index = ti.GetContainingTypeLib()
            tla = tlb.GetLibAttr()
            mod = EnsureModule(tla[0], tla[1], tla[3], tla[4], bForDemand=bForDemand)
            GetModuleForCLSID(disp_clsid)
            # Get the class from the module.
            import CLSIDToClass
            disp_class = CLSIDToClass.GetClass(str(disp_clsid))
            disp = disp_class(disp._oleobj_)
        except pythoncom.com_error:
            raise TypeError("This COM object can not automate the makepy process - please run makepy manually for this object")
    return disp