Do I still need to call CoInitialize(NULL) and CoUninitialize() if I switch to ATL?

Are CoInitialize(NULL) and CoUninitialize() automatically 开发者_Go百科called by ATL?

Or I still have to call CoInitialize(NULL) and CoUninitialize() at the beginning and end of my COM application respectively?

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In fact you have to call these in every thread in which you want to use COM calls.