IHostControl::GetHostManager Method

Gets an interface pointer to the host's implementation of the interface with the specified IID.

HRESULT GetHostManager (
    [in] REFIID riid,
    [out, iid_is(riid)] IUnknown** ppObject
);

Parameters

• riid
  [in] The IID of the interface that the common language runtime (CLR) is querying for.

• ppObject
  [out] A pointer to the host-implemented interface, or null if the host does not support this interface.

Return Value

HRESULT	Description
S_OK	GetHostManager returned successfully.
HOST_E_CLRNOTAVAILABLE	The CLR has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully.
HOST_E_TIMEOUT	The call timed out.
HOST_E_NOT_OWNER	The caller does not own the lock.
HOST_E_ABANDONED	An event was canceled while a blocked thread or fiber was waiting on it.
E_FAIL	An unknown catastrophic failure occurred. When a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.
E_INVALIDARG	The requested IID is not valid.
E_NOINTERFACE	The requested interface is not supported.

Remarks

The CLR queries the host to determine whether it supports one or more of the following interfaces:

• IHostMemoryManager

• IHostTaskManager

• IHostThreadPoolManager

• IHostIoCompletionManager

• IHostSyncManager

• IHostAssemblyManager

• IHostGCManager

If the host supports the specified interface, it sets ppObject to its implementation of that interface. Otherwise, it sets ppObject to null.

Requirements

Platforms: Windows 2000, Windows XP, Windows Server 2003 family

Header: MSCorEE.idl

Library: Included as a resource in MSCorEE.dll

.NET Framework Version: 2.0

See Also

Concepts

IHostControl Interface