ICLRRuntimeHost::SetHostControl Method

Sets the interface pointer that the common language runtime (CLR) can use to get the host's implementation of IHostControl Interface.


HRESULT SetHostControl(  
    [in] IHostControl* pHostControl  


[in] An interface pointer to the host's implementation of IHostControl Interface.

Return Value

HRESULT Description
S_OK SetHostControl 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. If a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.
E_CLR_ALREADY_STARTED The CLR has already been initialized.


You must call SetHostControl before the CLR is initialized, that is, before you call Start Method or use any of the Metadata Interfaces. It is recommended that you call SetHostControl immediately after calling CorBindToCurrentRuntime Function or CorBindToRuntimeEx Function.


Platforms: See System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

See also