Essential COM

, , . CLSID, , . , , . CLSID, ( , CLSID_Chimp2), , , CLSID :

 // new client -      I  *  = 0; hr = CoCreateInstance(CLSID_Chimp2, 0, CLSCTX_ALL, IID_Ape, (void**)&pApe); 

CLSID , Chimp. CLSID:

 // old client -      I  *  = 0; hr = CoCreateInstance(CLSID_Chimp, 0, CLSCTX_ALL, IID_Ape, (void**)&pApe); 

, Chimp CLSID . , , . , . .

CLSID, (class emulation). , CLSID , CLSID, . , CLSID, . , , API- :

 HRESULT CoTreatAsClass([in] REFCLSID rclsidOld,                        [in] REFCLSID rclsidNew); 

himp2 Chimp, , Chimp Chimp2:

 // cause Chimp activation calls to activate Chimp2 //         Chimp   Chimp2 HRESULT hr = CoTreatAsClass(CLSID_Chimp, CLSID_Chimp2); 

API- (registry key)

 [HKCR\CLSID\{CLSID_Chimp}\TreatAs]1 @={CLSID_Chimp2} 

CoTreatAsClass c CLSID_NULL TreatAs:

 // cause Chimp activation calls to activate Chimps //         Chimp //   Chimps HRESULT hr = CoTreatAsClass(CLSID_Chimp, CLSID_NULL); 

, . , API- CoGetTreatAsClass:

 HRESULT CoGetTreatAsClass ([in] REFCLSID rclsidOld,                            [out] REFCLSID *pclsidNew); 

, CLSID S_OK. , CLSID S_FALSE. , .


1 , CLSID_Chimp CLSID_Chimp2 GUID, 32 .



Suschnost' tehnologii SOM
Essential COM
ISBN: 0201634465
EAN: 2147483647
Year: N/A
Pages: 103
Authors: Don Box

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