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#include <MModelMessage.h>

Class Description

Scene messages.

This class is used to register callbacks for model related messages.

The addCallback method registers a function that will be executed whenever the specified message occurs. An id is returned and is used to remove the callback.

To remove a callback use MMessage::removeCallback. All callbacks that are registered by a plug-in must be removed by that plug-in when it is unloaded. Failure to do so will result in a fatal error.

Inheritance diagram for MModelMessage:

Public Types
enum	Message { kActiveListModified }
	Message types supported by the addCallback method. More...

Public Types inherited from MMessage
typedef void(*	MBasicFunction )(void *clientData)
	Pointer to a basic callback function. More...

typedef void(*	MElapsedTimeFunction )(float elapsedTime, float lastTime, void *clientData)
	Pointer to an elapsed time callback function. More...

typedef void(*	MCheckFunction )(bool retCode, void clientData)
	Pointer to callback function which returns a true/false result. More...

typedef void(*	MCheckFileFunction )(bool retCode, MFileObject &file, void clientData)
	Pointer to a callback function which takes a file object and returns a result. More...

typedef void(*	MCheckPlugFunction )(bool retCode, MPlug &plug, void clientData)
	Pointer to a callback function which takes a plug and returns a result. More...

typedef void(*	MComponentFunction )(MUintArray componentIds[], unsigned int count, void *clientData)
	Pointer to a callback function which takes an array of component ids. More...

typedef void(*	MNodeFunction )(MObject &node, void *clientData)
	Pointer to a callback function which takes a dependency node. More...

typedef void(*	MStringFunction )(const MString &str, void *clientData)
	Pointer to callback function which takes a string. More...

typedef void(*	MThreeStringFunction )(const MString &str1, const MString &str2, const MString &str3, void *clientData)
	Pointer to a callback function which takes three strings. More...

typedef void(*	MStringIntBoolIntFunction )(const MString &str, unsigned int index, bool flag, unsigned int type, void *clientData)
	Pointer to callback function which takes a string, an index, a flag and a type. More...

typedef void(*	MStringIndexFunction )(const MString &, unsigned int index, void *clientData)
	Pointer to callback function which takes a string and index. More...

typedef void(*	MNodeStringBoolFunction )(MObject &node, const MString &, bool, void *clientData)
	Pointer to a callback function which takes a node, a string and a boolean. More...

typedef void(*	MStateFunction )(bool state, void *clientData)
	Pointer to a callback function which takes a boolean state. More...

typedef void(*	MTimeFunction )(MTime &time, void *clientData)
	Pointer to callback function which takes a time. More...

typedef void(*	MPlugFunction )(MPlug &srcPlug, MPlug &destPlug, bool made, void *clientData)
	Pointer to plug connection callback function. More...

typedef void(*	MNodePlugFunction )(MObject &node, MPlug &plug, void *clientData)
	Pointer to a callback function which takes a dependency node and a plug. More...

typedef void(*	MNodeStringFunction )(MObject &node, const MString &str, void *clientData)
	Pointer to a callback function which takes a dependency node and a string. More...

typedef void(*	MParentChildFunction )(MDagPath &child, MDagPath &parent, void *clientData)
	Pointer to to a callback function which takes two DAG nodes in a parent/child relationship. More...

typedef void(*	MModifierFunction )(MDGModifier &modifier, void *clientData)
	Pointer to a callback function which takes a DG modifier. More...

typedef void(*	MStringArrayFunction )(const MStringArray &strs, void *clientData)
	Pointer to a callback function which takes a string array. More...

typedef void(*	MNodeModifierFunction )(MObject &node, MDGModifier &modifier, void *clientData)
	Pointer to a callback function which takes a dependency node and a DG modifier. More...

typedef void(*	MObjArray )(MObjectArray &objects, void *clientData)
	Pointer to a callback function which takes an array of objects. More...

typedef void(*	MNodeObjArray )(MObject &node, MObjectArray &objects, void *clientData)
	Pointer to a callback function which takes a dependency node and an array of objects. More...

typedef void(*	MStringNode )(const MString &str, MObject &node, void *clientData)
	Pointer to a callback function which takes a string and a dependency node. More...

typedef void(*	MCameraLayerFunction )(MObject &cameraSetNode, unsigned int multiIndex, bool added, void *clientData)
	Pointer to a callback function which takes a dependency node, an unsigned integer, and a boolean value. More...

typedef void(*	MCameraLayerCameraFunction )(MObject &cameraSetNode, unsigned int multiIndex, MObject &oldCamera, MObject &newCamera, void *clientData)
	Pointer to a callback function which takes a dependency node, an unsigned integer, and two camera transform nodes. More...

typedef void(*	MConnFailFunction )(MPlug &srcPlug, MPlug &destPlug, const MString &srcPlugName, const MString &dstPlugName, void *clientData)
	Pointer to connection-failed callback function. More...

typedef void(*	MPlugsDGModFunction )(MPlugArray &plugs, MDGModifier &modifier, void *clientData)
	Pointer to a callback function which takes an array of MPlugs and an MDGModifier. More...

typedef void(*	MObjectFileFunction )(const MObject &object, const MFileObject &file, void *clientData)
	Pointer to a callback function which takes an object and a file object. More...

typedef void(*	MCheckObjectFileFunction )(bool retCode, const MObject &referenceNode, MFileObject &file, void clientData)
	Pointer to a callback function which takes an object and a file object and returns a result. More...

Static Public Member Functions
static MCallbackId	addCallback (Message, MMessage::MBasicFunction, void clientData=NULL, MStatus ReturnStatus=NULL)
	Adds a new callback for the specified model message. More...

static MCallbackId	addBeforeDuplicateCallback (MMessage::MBasicFunction, void clientData=NULL, MStatus ReturnStatus=NULL)
	Before duplicate callback. More...

static MCallbackId	addAfterDuplicateCallback (MMessage::MBasicFunction, void clientData=NULL, MStatus ReturnStatus=NULL)
	After duplicate callback. More...

static MCallbackId	addNodeAddedToModelCallback (const MObject &dagNode, MMessage::MNodeFunction, void clientData=NULL, MStatus ReturnStatus=NULL)
	Node added to model message. More...

static MCallbackId	addNodeRemovedFromModelCallback (const MObject &dagNode, MMessage::MNodeFunction, void clientData=NULL, MStatus ReturnStatus=NULL)
	Node removed from model message. More...

static const char *	className ()
	Returns the name of this class. More...

Static Public Member Functions inherited from MMessage
static MStatus	removeCallback (MCallbackId id)
	Remove the specified callback from maya. More...

static MStatus	removeCallbacks (MCallbackIdArray &ids)
	Remove all of the specified callbacks from maya. More...

static MCallbackId	currentCallbackId (MStatus *ReturnStatus=NULL)
	Return the callback ID of the currently executing callback. More...

static MStatus	nodeCallbacks (MObject &node, MCallbackIdArray &ids)
	Returns a list of callback IDs associated registered to a given node. More...

static void	setRegisteringCallableScript ()
	Mark this MMessage object as one that will be passed callbacks defined in script.

static bool	registeringCallableScript ()
	Return true if this MMessage object has its callbacks defined in script.

static const char *	className ()
	Returns the name of this class. More...

static MStatus	removeCallbacks (MIntArray &ids)
	This method is obsolete. This method is not available in Python. More...

static MStatus	nodeCallbacks (MObject &node, MIntArray &ids)
	This method is obsolete. More...

Member Enumeration Documentation

enum Message

Message types supported by the addCallback method.

Enumerator
kActiveListModified	active selection changes

Member Function Documentation

MCallbackId addCallback	(	MModelMessage::Message	msg,
		MMessage::MBasicFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Adds a new callback for the specified model message.

Parameters

[in]	msg	the model message that will trigger the callback
[in]	func	the callback function \li <b>clientData</b> User defined data passed to the callback function
[in]	clientData	user data that will be passed to the callback function
[out]	ReturnStatus	Status code

Returns: Identifier used for removing the callback.

Status Codes:

MS::kSuccess Operation succeeded
MS::kInsufficientMemory No memory available
MS::kFailure Error adding callback

Examples:: componentScaleManip/componentScaleManip.cpp, customAttrManip/customAttrManip.cpp, gpuCache/gpuCacheSubSceneOverride.cpp, manipOverride/customTriadManip.cpp, manipOverride/manipOverride.cpp, moveManip/moveManip.cpp, rotateManip/rotateManip.cpp, and surfaceBumpManip/surfaceBumpManip.cpp.

MCallbackId addBeforeDuplicateCallback	(	MMessage::MBasicFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Before duplicate callback.

This method registers a callback that is called whenever a duplicate command is made.

The callback will be called before anything is duplicated.

Parameters

[in]	func	the callback function \li <b>clientData</b> User defined data passed to the callback function
[in]	clientData	User defined data passed to the callback function
[out]	ReturnStatus	status code

Returns: Identifier used for removing the callback.

Status Codes:

MS::kSuccess Operation succeeded
MS::kInsufficientMemory No memory available
MS::kFailure Error adding callback

MCallbackId addAfterDuplicateCallback	(	MMessage::MBasicFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

After duplicate callback.

This method registers a callback that is called after a duplicate command is made.

The callback will be called after everything is duplicated.

Parameters

[in]	func	the callback function \li <b>clientData</b> User defined data passed to the callback function
[in]	clientData	User defined data passed to the callback function
[out]	ReturnStatus	status code

Returns: Identifier used for removing the callback.

Status Codes:

MS::kSuccess Operation succeeded
MS::kInsufficientMemory No memory available
MS::kFailure Error adding callback

Examples:: dx11Shader/dx11Shader.cpp, and hlslShader/hlslShader.cpp.

MCallbackId addNodeAddedToModelCallback	(	const MObject &	dagNode,
		MMessage::MNodeFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Node added to model message.

This method registers a callback that is called when a dag node is about to be added to the Maya model.

Parameters

[in]	dagNode	Node that should acquire the callback
[in]	func	the callback function \li <b>dagNode</b> Node that is being added to the model \li <b>clientData</b> User defined data passed to the callback function
[in]	clientData	User defined data passed to the callback function
[out]	ReturnStatus	status code

Returns: Identifier used for removing the callback.

Status Codes:

MS::kSuccess Operation succeeded
MS::kInsufficientMemory No memory available
MS::kFailure Error adding callback

Examples:: dagMessageCmd/dagMessageCmd.cpp.

MCallbackId addNodeRemovedFromModelCallback	(	const MObject &	dagNode,
		MMessage::MNodeFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Node removed from model message.

This method registers a callback that is called when the specified dag node is being removed from the Maya model.

Parameters

[in]	dagNode	Node that should acquire the callback
[in]	func	the callback function \li <b>dagNode</b> Node that is being removed from the model \li <b>clientData</b> User defined data passed to the callback function
[in]	clientData	User defined data passed to the callback function
[out]	ReturnStatus	status code

Returns: Identifier used for removing the callback.

Status Codes:

MS::kSuccess Operation succeeded
MS::kInsufficientMemory No memory available
MS::kFailure Error adding callback

Examples:: dagMessageCmd/dagMessageCmd.cpp, and gpuCache/gpuCacheShapeNode.cpp.

const char * className ( )

static

Returns the name of this class.

Returns: The name of this class.

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

MModelMessage.h
MModelMessage.cpp

MModelMessage Class Reference

Class Description

Public Types

Static Public Member Functions

Member Enumeration Documentation

Member Function Documentation