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1. Using a service in C++
nsCOMPtr<nsIServiceManager> servManager; nsresult rv = NS_GetServiceManager(getter_AddRefs(servManager)); if (NS_FAILED(rv)) { // get ServiceManager error return -1; } // get real Service nsCOMPtr<nsICustomService> customService; rv = servMan->GetServiceByContractID("@mozilla.org/customservice", NS_GET_IID(nsICustomService), getter_AddRefs(customService)); if (NS_FAILED(rv)) { // get CustomService error return -1; } // call a method of CustomService customService->callMethod(/*some parameters*/);
2. Using a service in Javascript(XPConnect)
customService = Components.classes["@mozilla.org/customservice;1"] .getService(); customService = customService.QueryInterface(Components.interfaces.nsICustomService); customService.callMethod();
(FFOS Gecko) - several ways of using a XPCOM Service
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原文地址：http://www.cnblogs.com/code-4-fun/p/4661738.html
