#include <MFnReference.h>

Class Description

Function set for querying information about file references.

Reference nodes are used to track data about file references. Referenced files may be loaded and unloaded. They also store data about changes made to objects in the referenced file. The class MItEdits may be used to retrieve information about such changes.

The class MFileIO may be used to perform actual operations on references such as loading, unloading, adding and removing references.

Inheritance diagram for MFnReference:

Public Member Functions
virtual MFn::Type	type () const
	Function set type.

virtual	~MFnReference ()
	Destructor.

	MFnReference ()
	Default constructor.

	MFnReference (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MString	fileName (bool resolvedName, bool includePath, bool includeCopyNumber, MStatus *ReturnStatus=NULL) const
	Returns the name of file associated with this reference. More...

MString	associatedNamespace (bool shortName, MStatus *ReturnStatus=NULL) const
	Returns the namespace associated with this reference. More...

MString	parentFileName (bool resolvedName, bool includePath, bool includeCopyNumber, MStatus *ReturnStatus=NULL) const
	Returns the name of parent file associated with this reference. More...

MObject	parentReference (MStatus *ReturnStatus=NULL) const
	Returns the reference node associated with the parent reference. More...

MObject	parentAssembly (MStatus *ReturnStatus=NULL) const
	Returns the parent assembly node that contains this reference. More...

bool	containsNode (const MObject &node, MStatus *ReturnStatus=NULL) const
	Returns true if the specified node is from this reference or one of its child references. More...

bool	containsNodeExactly (const MObject &node, MStatus *ReturnStatus=NULL) const
	Returns true if the specified node is from this reference. More...

void	nodes (MObjectArray &nodes, MStatus *ReturnStatus=NULL) const
	Returns an array of the nodes associated with this reference. More...

bool	isLoaded (MStatus *ReturnStatus=NULL) const
	Returns true if the reference is loaded. More...

bool	isLocked (MStatus *ReturnStatus=NULL) const
	Returns true if the reference is locked or if the referenced file was saved as locked. More...

bool	isExportEditsFile (MStatus *ReturnStatus=NULL) const
	Returns true if the reference is an export edits file. More...

	MFnReference (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnDependencyNode
virtual	~MFnDependencyNode ()
	Destructor.

	MFnDependencyNode ()
	Default constructor.

	MFnDependencyNode (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MObject	create (const MTypeId &typeId, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MTypeId &typeId, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MString &type, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MObject	create (const MString &type, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MTypeId	typeId (MStatus *ReturnStatus=NULL) const
	Returns the type id of this node. More...

MString	typeName (MStatus *ReturnStatus=NULL) const
	Returns the type name of this node. More...

MString	name (MStatus *ReturnStatus=NULL) const
	Returns the name of this node. More...

MString	absoluteName (MStatus *ReturnStatus=NULL) const
	Returns the absolute name of this node. More...

MString	pluginName (MStatus *ReturnStatus=NULL) const
	Returns the name of the plug-in this MFnDependendencyNode was defined in. More...

MString	setName (const MString &name, bool createNamespace=false, MStatus *ReturnStatus=NULL)
	Sets the name of this node. More...

MUuid	uuid (MStatus *ReturnStatus=NULL) const
	Returns the node's UUID. More...

void	setUuid (const MUuid &uuid, MStatus *ReturnStatus=NULL)
	Sets the node's UUID. More...

MStatus	getConnections (MPlugArray &array) const
	Get all of the current connections to this node as an array of plugs. More...

unsigned int	attributeCount (MStatus *ReturnStatus=NULL) const
	Returns the number of attributes that this node has. More...

MObject	attribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node at the given index. More...

MObject	reorderedAttribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Some nodes, such as the various animCurve nodes, require that their attributes be set in a specific order for proper operation. More...

MObject	attribute (const MString &attrName, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node that has the given name. More...

MAttrClass	attributeClass (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Returns the class (normal, dynamic, extension) of the specified attribute. More...

MStatus	getAffectedAttributes (const MObject &attr, MObjectArray &affectedAttributes) const
	Returns an array of attributes that are affected by the attribute passed in. More...

MStatus	getAffectedByAttributes (const MObject &attr, MObjectArray &affectedByAttributes) const
	Returns an array of attributes that affect the attribute passed in, attr. More...

MPlug	findPlug (const MObject &attr, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MString &attrName, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MObject &attr, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MPlug	findPlug (const MString &attrName, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MStatus	addAttribute (const MObject &attr)
	Add a new dynamic attibute to this node. More...

MStatus	removeAttribute (const MObject &attr)
	Remove a dynamic attribute from a node. More...

MPxNode *	userNode (MStatus *ReturnStatus=NULL) const
	If the function set's node is a plug-in node, then this method will extract the MPxNode pointer from it. More...

bool	isFromReferencedFile (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node came from a referenced file. More...

bool	isShared (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is shared. More...

bool	isTrackingEdits (MStatus *ReturnStatus=NULL) const
	Returns whether or not edits on the given node are being tracked by the generalized edit system. More...

bool	hasUniqueName (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node's name is unique within the scene. More...

MString	parentNamespace (MStatus *ReturnStatus=NULL) const
	Returns the name of the namespace in which this node resides. More...

bool	isLocked (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is locked. More...

MStatus	setLocked (bool locked)
	Locks or unlocks this node. More...

bool	isNewAttribute (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Indicates whether or not the specified attribute was added to this node within the current scene. More...

MStatus	setFlag (unsigned int flag, bool state)
	Sets the state of the specified flag for the node. More...

bool	isFlagSet (unsigned int flag, MStatus *ReturnStatus=NULL) const
	Retrieves the current state of the specified flag for a node. More...

bool	isDefaultNode (MStatus *ReturnStatus=NULL) const
	Returns true if the node is a default node. More...

MStatus	setDoNotWrite (bool flag)
	Use this method to mark the "do not write" state of this node. More...

bool	canBeWritten (MStatus *ReturnStatus=NULL) const
	Returns the do not write state of the node. More...

bool	hasAttribute (const MString &name, MStatus *ReturnStatus=NULL) const
	Returns true if the node already has an attribute with the given name. More...

MObject	getAliasAttr (bool force, MStatus *ReturnStatus=NULL)
	Returns the node's alias attribute, which is a special attribute used to store information about the node's attribute aliases. More...

bool	setAlias (const MString &alias, const MString &name, const MPlug &plug, bool add=true, MStatus *ReturnStatus=NULL)
	Sets or removes an alias (i.e. More...

bool	findAlias (const MString &alias, MObject &attrObj, MStatus *ReturnStatus=NULL) const
	Retrieves the attribute with the given alias. More...

bool	getAliasList (MStringArray &strArray, MStatus *ReturnStatus=NULL)
	Returns a list of all attribute aliases for this node. More...

MString	plugsAlias (const MPlug &plug, MStatus *ReturnStatus=NULL)
	Returns the alias for the plug's attribute or the empty string if that attribute has no alias. More...

MStatus	setIcon (const MString &filename)
	Associates a custom icon with the node for display in the Maya UI. More...

MString	icon (MStatus *ReturnStatus=NULL) const
	Returns the custom icon filename associated with the node. More...

MStatus	getExternalContent (MExternalContentInfoTable &table) const
	Returns the external content (files) that this node depends on. More...

MStatus	addExternalContentForFileAttr (MExternalContentInfoTable &table, const MObject &attr) const
	Adds content info to the specified table from a file path attribute. More...

MStatus	setExternalContentForFileAttr (const MObject &attr, const MExternalContentLocationTable &table)
	Sets content info in the specified attribute from the table. More...

MStatus	setExternalContent (const MExternalContentLocationTable &table)
	Changes the location of external content. More...

MString	setName (const MString &name, MStatus *ReturnStatus)
	OBSOLETE FUNCTION, NO SCRIPT SUPPORT. More...

	MFnDependencyNode (const MObject &object, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

bool	getPlugsAlias (const MPlug &plug, MString &aliasName, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

virtual const adsk::Data::Associations *	metadata (MStatus *ReturnStatus=NULL) const
	This method is not available in Python. More...

virtual MStatus	setMetadata (const adsk::Data::Associations &)
	This method is not available in Python. More...

virtual MStatus	deleteMetadata ()
	This method is not available in Python. More...

virtual MStatus	validateMetadata (MString &errors) const
	This method is not available in Python. More...

MStatus	dgTimerOn ()
	Indicates that this node should collect DG timing data whenever DG timing is enabled. More...

MStatus	dgTimerOff ()
	Indicates that this node should no longer collect DG timing data when DG timing is enabled. More...

MdgTimerState	dgTimerQueryState (MStatus *ReturnStatus=NULL)
	The function returns the current on/off state of the node's timer. More...

MStatus	dgTimerReset ()
	The function resets the dependency graph timers and counters for this node to zero. More...

double	dgTimer (const MdgTimerMetric timerMetric, const MdgTimerType timerType, MStatus *ReturnStatus=NULL) const
	The function returns the specified timer value for the current node. More...

MStatus	dgCallbacks (const MdgTimerType type, MStringArray &callbackName, MDoubleArray &value)
	Node callbacks that occur when timing is enabled get logged with the node and can be queried via this method. More...

MStatus	dgCallbackIds (const MdgTimerType type, const MString &callbackName, MCallbackIdArray &callbackId, MDoubleArray &value)
	This method provides a further breakdown of the per-callback time returned via dgCallbacks() by returning the data on a per-callbackId basis. More...

MStatus	addAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

MStatus	removeAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

Public Member Functions inherited from MFnBase
virtual	~MFnBase ()
	Class Destructor. More...

bool	hasObj (MFn::Type) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

bool	hasObj (const MObject &) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

MObject	object (MStatus *ReturnStatus=NULL) const
	Returns the MObject that is attached to the Function Set. More...

virtual MStatus	setObject (MObject &object)
	Attaches the Function Set to the specified Maya Object. More...

virtual MStatus	setObject (const MObject &object)
	NO SCRIPT SUPPORT. More...

Static Public Member Functions
static bool	ignoreReferenceEdits ()
	Indicates whether reference edits will be tracked and logged or not. More...

static void	setIgnoreReferenceEdits (bool ignoreEdits)
	Specify whether reference edits should be tracked and logged or not. More...

Static Public Member Functions inherited from MFnDependencyNode
static MString	classification (const MString &nodeTypeName)
	Retrieves the classification string for a node type. More...

static unsigned int	allocateFlag (const MString pluginName, MStatus *ReturnStatus=NULL)
	Allocates a node flag for sole use by the caller. More...

static MStatus	deallocateFlag (const MString pluginName, unsigned int flag)
	Deallocates a node flag which was previously allocated by a call to allocateFlag. More...

static MStatus	deallocateAllFlags (const MString pluginName)
	Deallocates all of the node flags which are currently allocated to the specified plugin. More...

static void	enableDGTiming (bool enable)
	Globally enables or disables the DG node timing mechanism. More...

Static Public Member Functions inherited from MFnBase
static const char *	className ()
	Returns the name of this class. More...

Protected Member Functions
virtual const char *	className () const
	Class name.

Additional Inherited Members
Public Types inherited from MFnDependencyNode
enum	MAttrClass { kLocalDynamicAttr = 1, kNormalAttr, kExtensionAttr, kInvalidAttr }
	Specifies the scope of the attribute. More...

enum	MdgTimerState { kTimerOff, kTimerOn, kTimerUninitialized, kTimerInvalidState }
	Possible states for the node's timer. More...

enum	MdgTimerMetric { kTimerMetric_callback, kTimerMetric_compute, kTimerMetric_dirty, kTimerMetric_draw, kTimerMetric_fetch, kTimerMetric_callbackViaAPI, kTimerMetric_callbackNotViaAPI, kTimerMetric_computeDuringCallback, kTimerMetric_computeNotDuringCallback, kTimerMetrics }
	The different timer metrics which can be queried. More...

enum	MdgTimerType { kTimerType_self, kTimerType_inclusive, kTimerType_count, kTimerTypes }
	The types of timers which can be queried. More...

Constructor & Destructor Documentation

MFnReference	(	MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

MFnReference	(	const MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

Member Function Documentation

MString fileName	(	bool	resolvedName,
		bool	includePath,
		bool	includeCopyNumber,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns the name of file associated with this reference.

Parameters

[in]	resolvedName	If true, return the resolved name rather than the original file name. The unresolved name is the string originally specified when the file was loaded into Maya; this may contain environment variables, may be a relative path, and may otherwise not precisely indicate where the file can be located on disk. The resolved name is the actual path name that Maya is using to locate the file after relative paths and environment variables have been expanded, and any other necessary steps have been used to resolve its physical location.
[in]	includePath	If true, include the file path in the return string.
[in]	includeCopyNumber	If true, include the copy number (if there is one) in the return string.
[out]	ReturnStatus	return status

Returns: The name of the referenced file

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

MString associatedNamespace	(	bool	baseName,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns the namespace associated with this reference.

Parameters

[in]	baseName	If true, return the base name of the reference
[out]	ReturnStatus	return status

Returns: The namespace of this reference

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

MString parentFileName	(	bool	resolveName,
		bool	includePath,
		bool	includeCopyNumber,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns the name of parent file associated with this reference.

Parameters

[in]	resolveName	If true, return the resolved name rather than the original file name. The unresolved name is the string originally specified when the file was loaded into Maya; this may contain environment variables, may be a relative path, and may otherwise not precisely indicate where the file can be located on disk. The resolved name is the actual path name that Maya is using to locate the file after relative paths and environment variables have been expanded, and any other necessary steps have been used to resolve its physical location.
[in]	includePath	If true, include the file path in the return string.
[in]	includeCopyNumber	If true, include the copy number (if there is one) in the return string.
[out]	ReturnStatus	return status

Returns: The name of the parent file to the reference. Returns an empty string if there is no parent file.

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

MObject parentReference ( MStatus * ReturnStatus = NULL ) const

Returns the reference node associated with the parent reference.

Parameters

[out] ReturnStatus return status

Returns: The parent reference of this reference or MObject::kNullObj if there is no associated reference.

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

MObject parentAssembly ( MStatus * ReturnStatus = NULL ) const

Returns the parent assembly node that contains this reference.

See MFnAssembly documentation for more details.

Parameters

[out] ReturnStatus return status

Returns: The parent assembly node that contains this reference or MObject::kNullObj if there is no parent assembly node.

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool containsNode	(	const MObject &	node,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns true if the specified node is from this reference or one of its child references.

The containsNodeExactly method can be used to test membership without including the child references.

Parameters

[in]	node	The node to be checked
[out]	ReturnStatus	return status

Returns: Whether or not the node is from the reference or one of its child references.

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool containsNodeExactly	(	const MObject &	node,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns true if the specified node is from this reference.

Membership in child references is not checked. The containsNode method may be used to test membership in a reference and its child references.

Parameters

[in]	node	The node to be checked
[out]	ReturnStatus	return status

Returns: Whether or not the node is from the reference.

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

void nodes	(	MObjectArray &	nodeList,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns an array of the nodes associated with this reference.

Parameters

[out]	nodeList	the nodes from this reference
[out]	ReturnStatus	return status

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool isLoaded ( MStatus * ReturnStatus = NULL ) const

Returns true if the reference is loaded.

Parameters

[out] ReturnStatus return status

Returns: Whether or not the reference is loaded

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool isLocked ( MStatus * ReturnStatus = NULL ) const

Returns true if the reference is locked or if the referenced file was saved as locked.

Parameters

[out] ReturnStatus return status

Returns: Returns true if the reference is locked or if the referenced file was saved as locked

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool isExportEditsFile ( MStatus * ReturnStatus = NULL ) const

Returns true if the reference is an export edits file.

An export edits file is a file of type ".editMA" or ".editMB" which was created using Maya's offline file functionality.

Parameters

[out] ReturnStatus return status

Returns: Whether or not the reference is an export edits file

Status Codes:

MS::kSuccess operation successful
MS::kFailure function set does not have a valid node

bool ignoreReferenceEdits ( )

static

Indicates whether reference edits will be tracked and logged or not.

Returns: True if reference edits are ignored, otherwise false.

void setIgnoreReferenceEdits ( bool ignoreEdits )

static

Specify whether reference edits should be tracked and logged or not.

This should be treated as a temporary state and should be enabled around a batch of operations where reference edits should be ignored. Restore the previous value when the batch of operations is complete.

Parameters

[in] ignoreEdits If true reference edits will not be logged.

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

MFnReference.h
MFnReference.cpp

MFnReference Class Reference

Class Description

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation