COleSafeArray Class

项目
04/28/2015

A class for working with arrays of arbitrary type and dimension.

class COleSafeArray : public tagVARIANT

Members

Public Constructors

Name	Description
COleSafeArray::COleSafeArray	Constructs a COleSafeArray object.

Public Methods

Name	Description
COleSafeArray::AccessData	Retrieves a pointer to the array data.
COleSafeArray::AllocData	Allocates memory for the array.
COleSafeArray::AllocDescriptor	Allocates memory for the safe array descriptor.
COleSafeArray::Attach	Gives control of the existing VARIANT array to the COleSafeArray object.
COleSafeArray::Clear	Frees all data in the underlying VARIANT.
COleSafeArray::Copy	Creates a copy of an existing array.
COleSafeArray::Create	Creates a safe array.
COleSafeArray::CreateOneDim	Creates a one-dimensional COleSafeArray object.
COleSafeArray::Destroy	Destroys an existing array.
COleSafeArray::DestroyData	Destroys data in a safe array.
COleSafeArray::DestroyDescriptor	Destroys a descriptor of a safe array.
COleSafeArray::Detach	Detaches the VARIANT array from the COleSafeArray object (so that the data will not be freed).
COleSafeArray::GetByteArray	Copies the contents of the safe array into a CByteArray.
COleSafeArray::GetDim	Returns the number of dimensions in the array.
COleSafeArray::GetElement	Retrieves a single element of the safe array.
COleSafeArray::GetElemSize	Returns the size, in bytes, of one element in a safe array.
COleSafeArray::GetLBound	Returns the lower bound for any dimension of a safe array.
COleSafeArray::GetOneDimSize	Returns the number of elements in the one-dimensional COleSafeArray object.
COleSafeArray::GetUBound	Returns the upper bound for any dimension of a safe array.
COleSafeArray::Lock	Increments the lock count of an array and places a pointer to the array data in the array descriptor.
COleSafeArray::PtrOfIndex	Returns a pointer to the indexed element.
COleSafeArray::PutElement	Assigns a single element into the array.
COleSafeArray::Redim	Changes the least significant (rightmost) bound of a safe array.
COleSafeArray::ResizeOneDim	Changes the number of elements in a one-dimensional COleSafeArray object.
COleSafeArray::UnaccessData	Decrements the lock count of an array and invalidates the pointer retrieved by AccessData.
COleSafeArray::Unlock	Decrements the lock count of an array so it can be freed or resized.

Public Operators

Name	Description
COleSafeArray::operator LPCVARIANT	Accesses the underlying VARIANT structure of the COleSafeArray object.
COleSafeArray::operator LPVARIANT	Accesses the underlying VARIANT structure of the COleSafeArray object.
COleSafeArray::operator =	Copies values into a COleSafeArray object (SAFEARRAY, VARIANT, COleVariant, or COleSafeArray array).
COleSafeArray::operator ==	Compares two variant arrays (SAFEARRAY, VARIANT, COleVariant, or COleSafeArray arrays).
COleSafeArray::operator <<	Outputs the contents of a COleSafeArray object to the dump context.

Remarks

COleSafeArray derives from the OLE VARIANT structure. The OLE SAFEARRAY member functions are available through COleSafeArray, as well as a set of member functions specifically designed for one-dimensional arrays of bytes.

Inheritance Hierarchy

tagVARIANT

COleSafeArray

Requirements

Header: afxdisp.h

通过