{"id":739,"date":"2011-09-06T17:23:36","date_gmt":"2011-09-06T09:23:36","guid":{"rendered":"http:\/\/115.29.108.60\/?p=739"},"modified":"2011-09-26T21:57:15","modified_gmt":"2011-09-26T13:57:15","slug":"com%e7%ac%94%e8%ae%b0%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"http:\/\/115.29.108.60\/?p=739","title":{"rendered":"COM\u7b14\u8bb0\uff08\u4e8c\uff09"},"content":{"rendered":"

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\u8fdb\u7a0b\u5916\u7ec4\u4ef6\u6a21\u578b\u4e0e\u8fdb\u7a0b\u548cntdll.dll\u7684\u6a21\u578b\u7c7b\u4f3c\uff0c\u53ea\u548c\u5b58\u6839\u6253\u4ea4\u9053\uff0c\u7531\u5b58\u6839\u901a\u8fc7LPC\/RPC\u5b8c\u6210\u4ea4\u4e92\u3002<\/p>\n

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COM\u89c4\u5b9a\uff0c\u6bcf\u4e00\u4e2aCOM\u5bf9\u8c61\u5e94\u8be5\u6709\u4e00\u4e2a\u76f8\u5e94\u7684\u7c7b\u5382\u5bf9\u8c61\u3002\u4e3a\u4ec0\u4e48\u8981\u6709\u7c7b\u5382\u8fd9\u5c42\u95f4\u63a5\u6027\uff1f<\/strong><\/p>\n

DllGetClassObject(\u7c7b\u5382\u5bf9\u8c61\u6807\u8bc6, IID_IClassFactory, \u7c7b\u5382\u63a5\u53e3\u6307\u9488)<\/p>\n

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CoGetClassObject\uff08COM\u5e93\uff09—>\u4f4d\u7f6e\u900f\u660e\u6027—>DllGetClassObject\uff08\u7ec4\u4ef6\u5b9e\u73b0\u5e76\u5bfc\u51fa\uff09—>\u521b\u5efa\u7c7b\u5382\u5e76\u83b7\u5f97\u5176\u6307\u9488\u63a5\u53e3—><\/p>\n

CoGetClassObject\uff08COM\u5e93\uff09—>\u4f4d\u7f6e\u900f\u660e\u6027—>\u542f\u52a8\u8fdb\u7a0b\u5916\u7ec4\u4ef6\u8fdb\u7a0b—>CoRegisterClassObject\uff08\u81ea\u6ce8\u518c\u7c7b\u5382\uff09—>\u8fd4\u56de\u7c7b\u5382\u4fe1\u606f—><\/p>\n

CoCreateInstance\u662f\u5bf9CoGetClassObject\u7684\u5c01\u88c5\uff0c\u4e0d\u9700\u8981\u76f4\u63a5\u548c\u7c7b\u5382\u6253\u4ea4\u9053\u4e86\uff0c\u76f4\u63a5\u83b7\u5f97\u5bf9\u8c61\u7684\u63a5\u53e3\u6307\u9488\u3002CoCreateInstanceEx\u7528\u4e8e\u521b\u5efa\u8fdc\u7a0b\u673a\u5668\u4e0a\u7684COM\u5bf9\u8c61\u3002<\/p>\n

\u805a\u5408\u6a21\u578b\u4e0d\u4ec5\u9700\u8981\u5916\u5305\u5bf9\u8c61\u7684\u652f\u6301\uff0c\u8fd8\u9700\u8981\u88ab\u805a\u5408\u5bf9\u8c61\u7684\u652f\u6301\u3002\u56e0\u4e3a\u5916\u5305\u5bf9\u8c61\u4f1a\u76f4\u63a5\u8fd4\u56de\u88ab\u805a\u5408\u5bf9\u8c61\u7684\u63a5\u53e3\u6307\u9488\u7ed9\u5ba2\u6237\uff0c\u901a\u8fc7\u8be5\u63a5\u53e3\u6307\u9488QueryInterface IUnkown\u63a5\u53e3\u53ca\u5916\u5305\u5bf9\u8c61\u7684\u63a5\u53e3\u65f6\u5fc5\u987b\u6ee1\u8db3COM\u7684\u8981\u6c42\u3002<\/p>\n

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