#include <MAnimMessage.h>

Class Description

Animation messages.

This class is used to register callbacks for animation messages.

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 MAnimMessage:

Static Public Member Functions
static MCallbackId	addAnimCurveEditedCallback (MMessage::MObjArray func, void clientData=NULL, MStatus ReturnStatus=NULL)
	AnimCurve edited callback. More...

static MCallbackId	addAnimKeyframeEditedCallback (MMessage::MObjArray func, void clientData=NULL, MStatus ReturnStatus=NULL)
	AnimCurve keyframe edited callback. More...

static MCallbackId	addNodeAnimKeyframeEditedCallback (MObject &animNode, MMessage::MNodeObjArray func, void clientData=NULL, MStatus ReturnStatus=NULL)
	AnimCurve keyframe edited callback. More...

static MCallbackId	addAnimKeyframeEditCheckCallback (MMessage::MCheckPlugFunction func, void clientData=NULL, MStatus ReturnStatus=NULL)
	AnimCurve keyframe edit check callback. More...

static MCallbackId	addPreBakeResultsCallback (MMessage::MPlugsDGModFunction func, void clientData=NULL, MStatus ReturnStatus=NULL)
	Pre Bake Simulation callback. More...

static MCallbackId	addPostBakeResultsCallback (MMessage::MPlugsDGModFunction func, void clientData=NULL, MStatus ReturnStatus=NULL)
	Post Bake Simulation callback. More...

static MCallbackId	addDisableImplicitControlCallback (MMessage::MPlugsDGModFunction func, void clientData=NULL, MStatus ReturnStatus=NULL)
	Disable Implicit Control callback. More...

static MCallbackId	addAnimKeyframeEditedCallback (MObject &animNode, MMessage::MNodeObjArray func, void clientData=NULL, MStatus ReturnStatus=NULL)
	This method is obsolete. This method is not available in Python. More...

static void	flushAnimKeyframeEditedCallbacks ()
	AnimCurve keyframe edited callback flush. 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...

Additional Inherited Members
Public Types inherited from MMessage
enum	Action { kDefaultAction, kDoNotDoAction, kDoAction }
	Callback result action codes. More...

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(*	MTwoStringFunction) (const MString &str1, const MString &str2, void *clientData)
	Pointer to a callback function which takes two strings. 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(*	MNodeUuidFunction) (MObject &node, const MUuid &uuid, void *clientData)
	Pointer to a callback function which takes a dependency node and a UUID. More...

typedef Action(*	MCheckNodeUuidFunction) (bool doAction, MObject &node, MUuid &uuid, void *clientData)
	Pointer to a callback function which takes a dependency node and a UUID, and returns a result. 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...

typedef void(*	MRenderTileFunction) (int originX, int originY, int tileMaxX, int tileMaxY, const void *tileData)
	Pointer to a callback function which receives origin, size and image data. More...

Member Function Documentation

MCallbackId addAnimCurveEditedCallback	(	MMessage::MObjArray	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

AnimCurve edited callback.

This method registers a callback that is called whenever an AnimCurve is edited.

Parameters

[in] func The callback function.

editedCurves an array of AnimCurves which have been edited.
clientData User defined data passed to the callback function.

Parameters

[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 addAnimKeyframeEditedCallback	(	MMessage::MObjArray	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

AnimCurve keyframe edited callback.

This method registers a callback that is called whenever an a group of keys are modified.

The callback is invoked once per atomic change to single or group of keyframes. For example, if a user selects a group 5 of keys and moves them 5 units in the value axis, then a single callback event will be invoked with a MObject for each of the 5 keyframes. The MObjects can then be used in the MFnKeyframeDelta function set. Refer to MFnKeyframeDelta function set documentation for more info.

Parameters

[in] func the callback function

editedKeys an array of keyframes that were edited.
clientData User defined data passed to the callback function

Parameters

[in]	clientData	User defined data.
[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 addNodeAnimKeyframeEditedCallback	(	MObject &	animNode,
		MMessage::MNodeObjArray	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

AnimCurve keyframe edited callback.

This method registers a callback that is called whenever an a group of keys are modified.

The callback is invoked once per atomic change to single or group of keyframes on the specified animation curve node. For example, if a user selects a group 5 of keys and moves them 5 units in the value axis, then a single callback event will be invoked with a MObject for each of the 5 keyframes. The MObjects can then be used in the MFnKeyframeDelta function set. Refer to MFnKeyframeDelta function set documentation for more info.

Parameters

[in]	animNode	the param curve node you want to watch.
[in]	func	the callback function

animNode The edited animation node.
editedKeys an array of keyframes that were edited.
clientData User defined data passed to the callback function

Parameters

[in]	clientData	User defined data.
[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 addAnimKeyframeEditCheckCallback	(	MMessage::MCheckPlugFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

AnimCurve keyframe edit check callback.

This method registers a callback that is used by the setKeyframe command to allow a user to consider the set keyframe request and cancel it if needed.

The callback method should return false to abort the keyframe setting.

Parameters

[in]	func	the callback function retCode return code from callback, setting this to false will abort the keyframe action plug the plug being keyframed clientData User defined data passed to the callback function
[in]	clientData	User defined data.
[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

Example

This example callback will reject any changes to plugs including 'translate' in their name.

MAnimMessage m;
m.addAnimKeyframeEditCheckCallback( check_callback );
void check_callback(bool *retcode, MPlug& plug, void* clientData )
{
    // Don't allow any keys to be set on attributes with 'translate' in them
     *retcode = ( plug.name().indexW( "translate" ) == -1 );
}

MCallbackId addPreBakeResultsCallback	(	MMessage::MPlugsDGModFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Pre Bake Simulation callback.

This method registers a callback that is called from bakeResults command before the simulation.

One example usage is handle the runup to the first frame in a dynamic system. If plugArray is set to zero length in the callback, the baking will be aborted.

Parameters

[in]	func	the callback function plugArray the plugs to be baked. The plugs can be replaced, but must have the same number of plugs. modifier the DGModifier. Used if bakeResults command is undone or redone. clientData User defined data passed to the callback function
[in]	clientData	User defined data.
[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 addPostBakeResultsCallback	(	MMessage::MPlugsDGModFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Post Bake Simulation callback.

This method registers a callback that is called from bakeResults command after the simulation.

If the plugArray is replaced, then the anim curves created from baking will be connected to the new plugs.

Parameters

[in]	func	the callback function plugArray the baked plugs to which the resulting anim curves will be connected. The plugs can be replaced, but must have the same number of plugs. modifier the DGModifier. Used if bakeResults command is undone or redone. clientData User defined data passed to the callback function
[in]	clientData	User defined data.
[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 addDisableImplicitControlCallback	(	MMessage::MPlugsDGModFunction	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

Disable Implicit Control callback.

This method registers a callback that is called from bakeResults command after baking operation is completed, if disableImplicitControl is enabled.

One example usage of this callback is to create the anim curve that is used to drive Maya rigidbody's bakeSimulationIndex, which defines if the rigid body should take its input from anim curve or rigid body simulation.

Parameters

[in]	func	the callback function plugArray the baked plugs. modifier the DGModifier. Used if bakeResults command is undone or redone. clientData User defined data passed to the callback function
[in]	clientData	User defined data.
[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 addAnimKeyframeEditedCallback	(	MObject &	animNode,
		MMessage::MNodeObjArray	func,
		void *	clientData = `NULL`,
		MStatus *	ReturnStatus = `NULL`
	)

static

This method is obsolete. This method is not available in Python.

Deprecated:: Use MAnimMessage::addNodeAnimKeyframeEditedCallback instead.

Parameters

[in]	animNode	the param curve node you want to watch.
[in]	func	The callback function.
[in]	clientData	User defined data.
[out]	ReturnStatus	Status code.

Returns: Identifier used for removing the callback.

void flushAnimKeyframeEditedCallbacks ( )

static

AnimCurve keyframe edited callback flush.

Animation keyframe edited callbacks are queued to only be issued on an idle event.

There may be times when it is desired to issue the callback at a specific time. This method provides this functionality. It will flush all animation keyframe edited callbacks and force them to issue their callbacks with the data contained within.

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:

MAnimMessage.h
MAnimMessage.cpp

MAnimMessage Class Reference

Class Description

Static Public Member Functions

Additional Inherited Members

Member Function Documentation