XPCOM provides a number of global functions which are used to initialize and shut down the XPCOM library, as well as to allocate memory, get access to services, and to instantiate interfaces.
- NS_Alloc
- Infallibly allocates a block of memory using the XPCOM memory manager.
- NS_Free
- Frees a block of memory using the XPCOM memory manager.
- NS_GetComponentManager
- The
NS_GetComponentManagerfunction returns a reference to the XPCOM Component Manager. - NS_GetComponentRegistrar
- The
NS_GetComponentRegistrarfunction returns a reference to the XPCOM Component Registrar. - NS_GetMemoryManager
- The
NS_GetMemoryManagerfunction returns a reference to the XPCOM Memory Manager. - NS_GetServiceManager
- The
NS_GetServiceManagerfunction returns a reference to the XPCOM service manager. - NS_InitXPCOM2
- The
NS_InitXPCOM2function initiates use of XPCOM in the calling process. - NS_InitXPCOM3
- The
NS_InitXPCOM3function initiates use of XPCOM in the calling process with support for statically defined XPCOM modules.
- NS_NewLocalFile
- The
NS_NewLocalFilefunction creates an instance ofnsILocalFilethat provides a platform independent representation of a file path. - NS_NewNativeLocalFile
- The
NS_NewNativeLocalFilefunction creates an instance ofnsILocalFilethat provides a platform independent representation of a file path. - NS_Realloc
- Reallocates a block of memory using the XPCOM memory manager.
- NS_ShutdownXPCOM
- The
NS_ShutdownXPCOMfunction terminates use of XPCOM in the calling process. - nsresult
- The
nsresultdata type is a strongly-typedenumused to represent a value returned by an XPCOM function; these are typically error or status codes. For a list of defined result values, see Error codes returned by Mozilla APIs.