NullObjectHandle Class Reference

The null object has a type and value that are unequal to those of any other object. More...

Inheritance diagram for NullObjectHandle:

error_type CALLING_CONVENTION	NullObject_Create (NullObjectHandle **result)
	Creates a new NullObject instance.
error_type CALLING_CONVENTION	NullObject_ToObject (NullObjectHandle *handle, ObjectHandle **result)
	Reinterpret current object as ObjectHandle.
error_type CALLING_CONVENTION	NullObject_FromObject (ObjectHandle *handle, NullObjectHandle **result)
	Convert ObjectHandle to NullObjectHandle.
error_type CALLING_CONVENTION	NullObject_Release (NullObjectHandle *handle)
	Decrement the internal reference counter.

Additional Inherited Members
Public Member Functions inherited from ObjectHandle
error_type CALLING_CONVENTION	Object_GetObjectType (ObjectHandle *handle, ObjectType *result)
	Get derived type of current object.
Public Member Functions inherited from IUnknownHandle
error_type CALLING_CONVENTION	IUnknown_AddRef (IUnknownHandle *handle)
	Increment the internal reference counter.
Related Symbols inherited from ObjectHandle
error_type CALLING_CONVENTION	Object_TypeName (ObjectType type, string_type *result)
	Get string representation of object type.
error_type CALLING_CONVENTION	Object_GetOffset (ObjectHandle *handle, offset_type *result)
	Get input file offset where this object was found.
error_type CALLING_CONVENTION	Object_GetAttributeList (ObjectHandle *handle, ObjectAttributeListHandle **result)
	Get object attribute list attached to this PDF object.
error_type CALLING_CONVENTION	Object_ToString (ObjectHandle *handle, BufferHandle **result)
	Convert to human readable text format.
error_type CALLING_CONVENTION	Object_ToPdf (ObjectHandle *handle, BufferHandle **result)
	Get a PDF data representation of the current object.
error_type CALLING_CONVENTION	Object_ToUnknown (ObjectHandle *handle, IUnknownHandle **result)
	Reinterpret current object as IUnknownHandle.
error_type CALLING_CONVENTION	Object_FromUnknown (IUnknownHandle *handle, ObjectHandle **result)
	Convert IUnknownHandle to ObjectHandle.
error_type CALLING_CONVENTION	Object_Release (ObjectHandle *handle)
	Decrement the internal reference counter.
Related Symbols inherited from IUnknownHandle
error_type CALLING_CONVENTION	IUnknown_Release (IUnknownHandle *handle)
	Decrement the internal reference counter.

Detailed Description

The null object has a type and value that are unequal to those of any other object.

Friends And Related Symbol Documentation

NullObject_Release()

error_type CALLING_CONVENTION NullObject_Release ( NullObjectHandle * handle )

related

Decrement the internal reference counter.

When the internal counter reaches zero the object is deleted. Releasing already disposed object causes undefined behavior.

See also

IUnknown_Release

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The documentation for this class was generated from the following file:

• c_null_object.h