VC/Windows CE, why Can\'t create COM Instance After registering COM Server Successfully

why Can\'t create COM Instance After registering COM Server Successfully

Author	Message
jack #1 / 2	why Can\'t create COM Instance After registering COM Server Successfully Hi all, I met a problem when using COM under eVC 4.0, After registering simple COM Server ,I Can\'t create COM Instance as following: HRESULT hr=CoInitializeEx(NULL,COINIT_MULTITHREADED ); if(!SUCCEEDED(hr)) { MessageBox(TEXT(\"Failed to init COM !\")); } ITestMePtr Conn1; hr=Conn1.CreateInstance(_uuidof( TestMe )); if (FAILED(hr)) {// error happened here MessageBox(_T(\"Create the COM Server instance failed! \")); return; } It happened on CEPC and CE.Net Emulator.anyone can help me? thanks jack
Sat, 09 Jul 2005 09:08:31 GMT

Doro #2 / 2	why Can\'t create COM Instance After registering COM Server Successfully Check the Apartment/Free issue. In CE.Net there is Apartments in COM, if you use that model you have to create marshaling code (proxy/stub). Perform a simple test - define your component as a "Free" COM component and check if that helps. This is done by modifying the rgs file. Good luck. Quote: > Hi all, > I met a problem when using COM under eVC 4.0, After > registering simple COM Server ,I Can\'t create COM > Instance as following: > HRESULT hr=CoInitializeEx(NULL,COINIT_MULTITHREADED ); > if(!SUCCEEDED(hr)) > { > MessageBox(TEXT(\"Failed to init COM !\")); > } > ITestMePtr Conn1; > hr=Conn1.CreateInstance(_uuidof( TestMe )); > if (FAILED(hr)) > {// error happened here > MessageBox(_T(\"Create the COM Server instance failed! > \")); > return; > } > It happened on CEPC and CE.Net Emulator.anyone can help > me? > thanks > jack
Tue, 12 Jul 2005 04:18:23 GMT

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