共用方式為

IAccessor::AddRefAccessor

  • 發行項

Adds a reference count to an existing accessor.

Syntax

HRESULT AddRefAccessor (
   HACCESSOR   hAccessor,
   DBREFCOUNT *pcRefCount);

Parameters

  • hAccessor
    [in] The handle of the accessor for which to increment the reference count.

  • pcRefCount
    [out] A pointer to memory in which to return the reference count of the accessor handle. If pcRefCount is a null pointer, no reference count is returned.

Return Code

  • S_OK
    The method succeeded.

  • E_FAIL
    A provider-specific error occurred.

  • E_UNEXPECTED
    ITransaction::Commit or ITransaction::Abort was called, and the object is in a zombie state. This error can be returned only when the method is called on a rowset.

  • DB_E_BADACCESSORHANDLE
    hAccessor was invalid.

Comments

The consumer must increment the reference count on an accessor by calling IAccessor::AddRefAccessor before passing it to another thread.

See Also

Reference

IAccessor::CreateAccessor

IAccessor::ReleaseAccessor