Registry2.Create Instance(Guid, Object, Guid, UInt32, IntPtr) Method
Creates an instance of a class listed in the local registry.
public: int CreateInstance(Guid clsid, System::Object ^ punkOuter, Guid % riid, System::UInt32 dwFlags, [Runtime::InteropServices::Out] IntPtr % ppvObj);
public int CreateInstance (Guid clsid, object punkOuter, ref Guid riid, uint dwFlags, out IntPtr ppvObj);
abstract member CreateInstance : Guid * obj * * uint32 * -> int
Public Function CreateInstance (clsid As Guid, punkOuter As Object, ByRef riid As Guid, dwFlags As UInteger, ByRef ppvObj As IntPtr) As Integer
[in] Class identifier (CLSID) of the requested object. This is the CLSID associated with the data and code that is used to create the object.
[in] Pointer to the controlling instance of
IUnknown of the aggregate that uses the newly created object. A value of
null indicates that the object is not being created as part of an aggregate. If non-null, this is a pointer to the aggregate object's
IUnknown interface (the controlling
[in] Interface to be used to communicate with the object. For example,
[out] Address of pointer variable that receives the interface pointer requested in
riid. Upon successful return,
ppvObj contains the requested interface pointer. Upon failure,
[in] CLSID clsid,
[in] IUnknown* punkOuter,
[in] REFIID riid,
[in] DWORD dwFlags,
[out] void** ppvObj
CreateInstance method is equivalent to COM's
CoCreateInstance function. It creates a single uninitialized object of the kind associated with the specified CLSID and returns any requested interface pointers.
CreateInstance looks up the class object in the local registry of registered objects, connects to the class object associated with the specified CLSID, creates an uninitialized instance of the object, and releases the class object. This method encapsulates calls to the COM function
CoGetClassObject to get a pointer to the object's class factory, and to
CreateInstance to create an instance of the object, and to Release the reference to the object's class factory.
CreateInstance when you want to create a single instance of an object based on a CLSID and do not need to keep the class factory object to create other instances of the object. To create multiple objects from a single class object, use the M:Microsoft.VisualStudio.Shell.Interop.ILocalRegistry2.GetClassObjectOfClsid(System.Guid@,System.UInt32,System.IntPtr,System.Guid@,System.IntPtr) method.
This method registers an object in the local registry hive (for example, [HKEY_LOCAL_MACHINE\Software\Microsoft\VisualStudio\8.0\CLSID]). In this section of the registry, InProcServer32 is used as a value rather than a subkey. We only support instantiating objects on the main UI thread.
Specify a value of CLSCTX_INPROC_SERVER for the
dwFlags parameter to instantiate the object locally. If you do not specify this value, then the object will be instantiated globally using COM's