Public Member Functions | Static Public Member Functions | Static Public Attributes

MFnPlugin Class Reference

OpenMaya - API module for common classes | FunctionSet classes

This reference page is linked to from the following overview topics: Maya のメニューにプラグインを取り付ける, ハードウェア シェーディング ノード プラグインを実装する, カスタム トランスフォームのサンプル, デフォーマ ノードの例, ファイル トランスレータのサンプル.

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Detailed Description

Register and deregister plug-in services with Maya.

This class is used in the initializePlugin and uninitializePlugin functions of a Maya plug-in to respectively register and deregister the plug-in's services (commands, node types, etc) with Maya. The constructor for this class must be passed the MObject that Maya provides as an argument to initializePlugin and uninitializePlugin.

MFnPlugin provides various registration methods for use inside initializePlugin, when the plug-in is being loaded, and deregistration methods for use inside uninitializePlugin, when the plug-in is being unloaded. In general it is good practice to have uninitializePlugin deregister the plug-in's services in the reverse order in which they were registered in initializePlugin. This ensures, for example, that a custom datatype is not deregistered before the node types which use it.

A plug-in's uninitializePlugin function is only called when the plug-in is explicitly unloaded. It is not called when Maya exits. Normally this is not a problem because system resources such as memory and open file handles are automatically released by the operating system when Maya exits. However, if there are cleanup tasks which a plug-in must perform even when Maya exits, for example deleting a temporary file, then the plug-in's initializePlugin can use the MSceneMessage::addCallback method with a message of "kMayaExiting" to register a callback function that will be executed when Maya is about to exit. The callback function can then handle any cleanup activities which the operating system won't handle automatically on exit.

A side effect of including MFnPlugin.h in a source file is to embed an API version string into the corresponding compiled object file. Because of this, including MFnPlugin.h in more than one source file in the same plug-in will lead to conflicts when the plug-in is linked. If it is necessary to include MFnPlugin.h in more than one of a plug-in's source files the preprocessor macro MNoVersionString should be defined in all but one of those files prior to the inclusion of MFnPlugin.h. Normally, this issue will not arise as only the file that contains the initializePlugin and uninitializePlugin routines should need to include MFnPlugin.h.

It is unusual, but possible, to instantiate several MFnPlugin objects within a single plug-in binary. In this case the vendor and version information that is set for the plug-in is taken from the first instance as this information works per binary rather than per command/node etc.

Examples:

affectsNode.cpp, animCubeNode.cpp, animExportUtil.cpp, animImportExport.cpp, animInfoCmd.cpp, anisotropicShader.cpp, apiMeshShape.cpp, apiSimpleShape.cpp, arcLenNode.cpp, AshliPluginMain.cpp, backfillShader.cpp, blindComplexDataCmd.cpp, blindDataPluginMain.cpp, blindDoubleDataCmd.cpp, blindShortDataCmd.cpp, brickShader.cpp, buildRotationNode.cpp, cellShader.cpp, checkerShader.cpp, circleNode.cpp, cleanPerFaceAssignmentPluginMain.cpp, clearcoat.cpp, closestPointCmd.cpp, closestPointOnCurvePlugin.cpp, closestPointOnNurbsSurfaceCmd.cpp, clothPaintAttrCmd.cpp, clusterWeightFunction.cpp, componentScaleManip.cpp, compositingShader.cpp, conditionTest.cpp, contrastShader.cpp, convertBumpCmd.cpp, convertEdgesToFacesCmd.cpp, convertVerticesToEdgesCmd.cpp, convertVerticesToFacesCmd.cpp, createClipCmd.cpp, curvedArrowsNode.cpp, customAttrManip.cpp, customImagePlane.cpp, cvColorNode.cpp, cvColorShader.cpp, cvPosCmd.cpp, D3DViewportRendererPlugin.cpp, dagMessageCmd.cpp, dagPoseInfoCmd.cpp, ddsFloatReader.cpp, deletedMsgCmd.cpp, depthShader.cpp, displacementShader.cpp, dynExprField.cpp, eventTest.cpp, exampleMRampAttribute.cpp, exportJointClusterDataCmd.cpp, exportSkinClusterDataCmd.cpp, fileIOMsgCmd.cpp, filteredAsciiFile.cpp, flameShader.cpp, flipUVMain.cpp, fluidInfoCmd.cpp, footPrintManip.cpp, footPrintNode.cpp, fullLoftNode.cpp, gammaShader.cpp, genericAttributeNode.cpp, geometryCacheConverter.cpp, geometrySurfaceConstraint.cpp, geomShader.cpp, hairCollisionSolver.cpp, helix2Cmd.cpp, helixTool.cpp, hlslPluginMain.cpp, hwAnisotropicShader_NV20.cpp, hwColorPerVertexShader.cpp, hwDecalBumpShader_NV20.cpp, hwManagedTextureShader.cpp, hwPhongShader.cpp, hwReflectBumpShader_NV20.cpp, hwRefractReflectShader_NV20.cpp, hwRenderPostEffect.cpp, hwToonShader_NV20.cpp, hwUnlitShader.cpp, iffInfoCmd.cpp, iffPixelCmd.cpp, iffPpmCmd.cpp, instanceCallbackCmd.cpp, interpShader.cpp, intersectCmd.cpp, intersectOnNurbsSurfaceCmd.cpp, jitterNode.cpp, jlcVcrDevice.cpp, lambertShader.cpp, lassoTool.cpp, latticeNoise.cpp, lavaShader.cpp, lepTranslator.cpp, lightShader.cpp, lineManip.cpp, lineManipContainer.cpp, lockEvent.cpp, marqueeTool.cpp, maTranslator.cpp, meshOpMain.cpp, meshReorderPlugin.cpp, mixtureShader.cpp, motionPathCmd.cpp, motionTraceCmd.cpp, moveCurveCVsCmd.cpp, moveManip.cpp, moveNumericTool.cpp, moveTool.cpp, multiCurveNode.cpp, narrowPolyViewerMain.cpp, nodeCreatedCBCmd.cpp, nodeInfoCmd.cpp, nodeMessageCmd.cpp, noiseShader.cpp, objExport.cpp, offsetNode.cpp, OpenEXR.cpp, OpenGLViewportRendererPlugin.cpp, ownerEmitter.cpp, particleAttrNodeMain.cpp, particlePathsCmd.cpp, particleSystemInfoCmd.cpp, peltOverlapCmd.cpp, pfxInfoCmd.cpp, phongShader.cpp, pickCmd.cpp, pluginMain.cpp, pnTrianglesNode.cpp, pointOnMeshInfoPlugin.cpp, pointOnSubdNode.cpp, polyMessageCmd.cpp, polyPrimitiveCmd.cpp, polyRawExporter.cpp, polyTrgNode.cpp, polyX3DExporter.cpp, progressWindowCmd.cpp, quadricShape.cpp, referenceQueryCmd.cpp, renderAccessNode.cpp, renderViewInteractiveRenderCmd.cpp, renderViewRenderCmd.cpp, renderViewRenderRegionCmd.cpp, rockingTransformCheckMain.cpp, rockingTransformMain.cpp, rotateManip.cpp, sampleCmd.cpp, sampleParticles.cpp, scanDagCmd.cpp, scanDagSyntax.cpp, shadowMatteShader.cpp, shellNode.cpp, shiftNode.cpp, simpleEmitter.cpp, simpleFluidEmitter.cpp, simpleImageFile.cpp, simpleLoftNode.cpp, simpleSolverNode.cpp, simpleSpring.cpp, sineNode.cpp, slopeShader.cpp, solidCheckerShader.cpp, spiralAnimCurveCmd.cpp, splitUVMain.cpp, squareScaleManip.cpp, squareScaleManipContext.cpp, stringFormatNode.cpp, surfaceBumpManip.cpp, surfaceCreateCmd.cpp, surfaceTwistCmd.cpp, sweptEmitter.cpp, swissArmyManip.cpp, testNobjectNode.cpp, testNucleusNode.cpp, tiffFloatReader.cpp, torusField.cpp, transCircleNode.cpp, translateCmd.cpp, undoRedoMsgCmd.cpp, userMsgCmd.cpp, viewCallbackTest.cpp, volumeShader.cpp, weightListNode.cpp, XmlGeometryCache.cpp, yTwistNode.cpp, and zoomCameraCmd.cpp.

#include <MFnPlugin.h>

Inheritance diagram for MFnPlugin:
Inheritance graph
[legend]

List of all members.

Public Member Functions
  MFnPlugin ()
  Default class constructor.
  MFnPlugin (MObject &object, const char *vendor="Unknown", const char *version="Unknown", const char *requiredApiVersion="Any", MStatus *ReturnStatus=0L)
  Class constructor that initializes the function set to the given MObject.
virtual  ~MFnPlugin ()
  The class destructor.
virtual MFn::Type  type () const
  Return the type of this function set.
MString  vendor (MStatus *ReturnStatus=NULL) const
  Return the vendor string supplied in the MFnPlugin constructor.
MString  version (MStatus *ReturnStatus=NULL) const
  Return the version string supplied in the MFnPlugin constructor.
MString  apiVersion (MStatus *ReturnStatus=NULL) const
  Return the required API version string supplied in the MFnPlugin constructor.
MString  name (MStatus *ReturnStatus=NULL) const
  Return the name by which Maya knows this plug-in.
MString  loadPath (MStatus *ReturnStatus=NULL) const
  Determine the path where the plugin was loaded.
MStatus  setName (const MString &newName, bool allowRename=true)
  Set the name by which Maya knows this plug-in.
MStatus  setVersion (const MString &newVersion)
  Set the version name for this plug-in.
MStatus  registerCommand (const MString &commandName, MCreatorFunction creatorFunction, MCreateSyntaxFunction createSyntaxFunction=NULL)
  Register a new command with Maya.
MStatus  deregisterCommand (const MString &commandName)
  Deregister the user defined command from Maya.
MStatus  registerControlCommand (const MString &commandName, MCreatorFunction creatorFunction)
  Register a new control command with Maya.
MStatus  deregisterControlCommand (const MString &commandName)
  Deregister the user defined control command from Maya.
MStatus  registerModelEditorCommand (const MString &commandName, MCreatorFunction creatorFunction, MCreatorFunction paneCreatorFunction)
  Register a new model editor command with Maya.
MStatus  deregisterModelEditorCommand (const MString &commandName)
  Deregister the user defined editor command from Maya.
MStatus  registerConstraintCommand (const MString &commandName, MCreatorFunction creatorFunction)
  Register a new constraint command with Maya.
MStatus  deregisterConstraintCommand (const MString &commandName)
  Deregister the user defined constraint command from Maya.
MStatus  registerContextCommand (const MString &commandName, MCreatorFunction creatorFunction)
  Register a new context command with Maya.
MStatus  registerContextCommand (const MString &commandName, MCreatorFunction creatorFunction, const MString &toolCmdName, MCreatorFunction toolCmdCreator, MCreateSyntaxFunction toolCmdSyntax=NULL)
  Register a new context command and a new tool command with Maya.
MStatus  deregisterContextCommand (const MString &commandName)
  Deregister the given user defined context command from Maya.
MStatus  deregisterContextCommand (const MString &commandName, const MString &toolCmdName)
  Deregister the given user defined context command and tool command from Maya.
MStatus  registerNode (const MString &typeName, const MTypeId &typeId, MCreatorFunction creatorFunction, MInitializeFunction initFunction, MPxNode::Type type=MPxNode::kDependNode, const MString *classification=NULL)
  Register a new dependency node with Maya.
MStatus  deregisterNode (const MTypeId &typeId)
  Deregister the given user defined dependency node type Maya.
MStatus  registerShape (const MString &typeName, const MTypeId &typeId, MCreatorFunction creatorFunction, MInitializeFunction initFunction, MCreatorFunction uiCreatorFunction, const MString *classification=NULL)
  Registers the given user defined shape node with Maya.
MStatus  registerTransform (const MString &typeName, const MTypeId &typeId, MCreatorFunction creatorFunction, MInitializeFunction initFunction, MCreateXformMatrixFunction xformCreatorFunction, const MTypeId &xformId, const MString *classification=NULL)
  Registers the given user defined transform node with Maya.
MStatus  registerData (const MString &typeName, const MTypeId &typeId, MCreatorFunction creatorFunction, MPxData::Type type=MPxData::kData)
  Register a new data type with Maya.
MStatus  deregisterData (const MTypeId &typeId)
  Deregister the given user defined data type from Maya.
MStatus  registerDevice (const MString &deviceName, MCreatorFunction creatorFunction)
  Register a new input device with Maya.
MStatus  deregisterDevice (const MString &deviceName)
  Deregister the given user defined input device from Maya.
MStatus  registerFileTranslator (const MString &translatorName, char *pixmapName, MCreatorFunction creatorFunction, char *optionsScriptName=NULL, char *defaultOptionsString=NULL, bool requiresFullMel=false, MString dataStorageLocation=MFnPlugin::kDefaultDataLocation)
  Register a new file translator with Maya.
MStatus  deregisterFileTranslator (const MString &translatorName)
  Deregister the specified file translator with Maya.
MStatus  registerIkSolver (const MString &ikSolverName, MCreatorFunction creatorFunction)
  Register a new ik-solver with Maya.
MStatus  deregisterIkSolver (const MString &ikSolverName)
  Deregister the specified ik-solver with Maya.
MStatus  registerCacheFormat (const MString &cacheFormatName, MCreatorFunction creatorFunction)
  Register a new cache format with Maya.
MStatus  deregisterCacheFormat (const MString &cacheFormatName)
  Deregister the specified cache format with Maya.
MStatus  registerUIStrings (MInitializeFunction registerMStringResources, const MString &pluginStringsProc)
  Set the callback and procedure names of routines that register plugin string resources and optionally load localized values for them.
MStatus  registerDragAndDropBehavior (const MString &behaviorName, MCreatorFunction creatorFunction)
  Register a new drag and drop behavior with Maya.
MStatus  deregisterDragAndDropBehavior (const MString &behaviorName)
  Deregister the given drag and drop behavior from Maya.
MStatus  registerImageFile (const MString &imageFormatName, MCreatorFunction creatorFunction, const MStringArray &imageFileExtensions)
  Register a new image file translator with Maya.
MStatus  deregisterImageFile (const MString &imageFormatName)
  Deregister the specified image file translator with Maya.
MStatus  registerRenderPassImpl (const MString &passImplId, MRenderPassDef *passDef, MCreatorFunction creatorFunction, bool overload=false)
  Register a new render pass implementation with Maya and associate with the given render pass definition.
MStatus  deregisterRenderPassImpl (const MString &passImplId)
  Deregister the specified render pass implementation with Maya.
MTypeId  matrixTypeIdFromXformId (const MTypeId &xformTypeId, MStatus *ReturnStatus=NULL)
  The function returns the MTypeId of the matrix when the MTypeId of the corresponding xform is given.
MStringArray  addMenuItem (const MString &menuItemName, const MString &parentName, const MString &commandName, const MString &commandParams, bool needOptionBox=false, const MString *optBoxFunction=NULL, MStatus *retStatus=NULL)
  The function adds the menuItem to the specified parent, and associates a command with it.
MStatus  removeMenuItem (MStringArray &menuItemNames)
  The function removes the menuItem and the corresponding option box, if exists, from the UI.
MStatus  registerMaterialInfo (const MString &type, MMaterialInfoFactoryFnPtr fnPtr)
  Registers a new material information type with Maya.
MStatus  unregisterMaterialInfo (const MString &typeName)
  Deregister the specified material info type with Maya.
MStatus  registerBakeEngine (const MString &typeName, MBakeEngineCreatorFnPtr fnPtr)
  Registers a new bake engine type with Maya.
MStatus  unregisterBakeEngine (const MString &typeName)
  Deregister the bake engine type with Maya.
MStatus  registerTransform (const MString &typeName, const MTypeId &typeId, MCreatorFunction creatorFunction, MInitializeFunction initFunction, MCreatorFunction xformCreatorFunction, const MTypeId &xformId, const MString *classification=NULL)
  Obsolete.
MStatus  registerUI (const MString &creationProc, const MString &deletionProc, const MString &creationBatchProc="", const MString &deletionBatchProc="")
  NO SCRIPT SUPPORT.

Static Public Member Functions
static MObject  findPlugin (const MString &pluginName)
  Returns an MObject corresponding to the named plugin.
static bool  isNodeRegistered (const MString &typeName)
  Queries if the given typeName has been registered by maya or plugins.
static void  setRegisteringCallableScript ()
  Mark this MFnPlugin object as one that will be passed callbacks defined in script.
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static bool  registeringCallableScript ()
  Return true if this MFnPlugin object has its callbacks defined in script.
static const char *  className ()
  Returns the name of this class.

Static Public Attributes

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static const MString  kDefaultDataLocation = "data"
  Specifies the default storage location for registerFileTranslator, the default value is "data".
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Constructor & Destructor Documentation

MFnPlugin ( )

Default class constructor.

The function set is not attached to an MObject.

MFnPlugin ( MObject &  object,
const char *  vendor = "Unknown",
const char *  version = "Unknown",
const char *  requiredApiVersion = "Any",
MStatus *  ReturnStatus = 0L 
)

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

The MObject should the be one passed as an argument to either the initializePlugin or uninitializePlugin entry points of a Maya plug-in.

Parameters:
[in] object the MObject to attach the function set to
[in] vendor a string identifying the vendor of this plug-in
[in] version a string identifying the version number of this plug-in
[in] requiredApiVersion if the plug-in is known to work with only a specify API version, that version can be specified here. This argument is current not used by the Maya API.
[out] ReturnStatus the return status
Status Codes:

Member Function Documentation

MFn::Type type ( ) const [virtual]
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Return the type of this function set.

Returns:
The constant MFn::kPlugin

Reimplemented from MFnBase.

MString vendor ( MStatus *  ReturnStatus = NULL ) const
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Return the vendor string supplied in the MFnPlugin constructor.

Parameters:
[out] ReturnStatus the return status
Returns:
An MString containing the vendor name
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MString version ( MStatus *  ReturnStatus = NULL ) const
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Return the version string supplied in the MFnPlugin constructor.

Parameters:
[out] ReturnStatus the return status
Returns:
An MString containing the version string
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MString apiVersion ( MStatus *  ReturnStatus = NULL ) const
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Return the required API version string supplied in the MFnPlugin constructor.

Parameters:
[out] ReturnStatus the return status
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
Returns:
An MString containing the required API version string
MString name ( MStatus *  ReturnStatus = NULL ) const
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Return the name by which Maya knows this plug-in.

Parameters:
[out] ReturnStatus the return status
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
Returns:
An MString containing the plug-in name
MString loadPath ( MStatus *  ReturnStatus = NULL ) const
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Determine the path where the plugin was loaded.

Parameters:
[out] ReturnStatus the return status
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
Returns:
An MString containing path name to the location of the plugin.
MStatus setName ( const MString &  newName,
bool  makeUnique = true 
)
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Set the name by which Maya knows this plug-in.

Parameters:
[in] newName the new name
[in] makeUnique if true and the requested name is already in use, then Maya will create an unused name for this plug-in. If false, and the name is in use, do not change the current name.
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure makeUnique was false, and the requested name is already in use
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus setVersion ( const MString &  newVersion )
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Set the version name for this plug-in.

Parameters:
[in] newVersion the new version
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction,
MCreateSyntaxFunction  createSyntaxFunction = NULL 
)
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Register a new command with Maya.

Once registered, the command can be invoked from MEL in a manner identical to built-in Maya commands.

Parameters:
[in] commandName the name of the command to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxCommand) that implements the new command.
[in] createSyntaxFunction a pointer to a function that will return a new instance of a syntax object (MSyntax) that implements the syntax of the command.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the command is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
Examples:
cleanPerFaceAssignmentPluginMain.cpp, latticeNoise.cpp, meshOpMain.cpp, pointOnMeshInfoPlugin.cpp, and splitUVMain.cpp.
MStatus deregisterCommand ( const MString &  commandName )
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Deregister the user defined command from Maya.

Once deregistered the command can no longer be invoked from MEL.

Parameters:
[in] commandName the name of the command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerControlCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction 
)
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Register a new control command with Maya.

Once registered, the command can be invoked from MEL in a manner identical to built-in Maya commands.

Parameters:
[in] commandName the name of the control to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class(derived from MPxControlCommand) that implements the new command.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the command is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus deregisterControlCommand ( const MString &  commandName )
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Deregister the user defined control command from Maya.

Once deregistered the command can no longer be invoked from MEL.

Parameters:
[in] commandName the name of the command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerModelEditorCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction,
MCreatorFunction  viewCreatorFunction 
)
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Register a new model editor command with Maya.

Once registered, the command can be invoked from MEL in a manner identical to built-in Maya commands.

Parameters:
[in] commandName the name of the command to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxEditorCommand) that implements the new command.
[in] viewCreatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPx3dModelView) that implemented the new view associated with this command.
Returns:
Status code
Status Codes:
Examples:
narrowPolyViewerMain.cpp.
MStatus deregisterModelEditorCommand ( const MString &  commandName )
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Deregister the user defined editor command from Maya.

Once deregistered the command can no longer be invoked from MEL.

Parameters:
[in] commandName the name of the command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerConstraintCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction 
)
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Register a new constraint command with Maya.

Once registered, the command can be invoked from MEL in a manner identical to built-in Maya commands.

Parameters:
[in] commandName the name of the command to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxConstraintCommand) that implements the new command.
Returns:
Status code
Status Codes:
MStatus deregisterConstraintCommand ( const MString &  commandName )
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Deregister the user defined constraint command from Maya.

Once deregistered the command can no longer be invoked from MEL.

Parameters:
[in] commandName the name of the command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerContextCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction 
)
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Register a new context command with Maya.

Once registered, the context can be used to create a new tool that can be used in a manner identical to built-in Maya tools.

Parameters:
[in] commandName the name of the context command to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxToolCommand) that implements the new tool.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the command is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
Examples:
meshReorderPlugin.cpp.
MStatus registerContextCommand ( const MString &  commandName,
MCreatorFunction  creatorFunction,
const MString &  toolCmdName,
MCreatorFunction  toolCmdCreator,
MCreateSyntaxFunction  toolCmdSyntax = NULL 
)
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Register a new context command and a new tool command with Maya.

This version of registerContextCommand must be used if a tool command (a class derived from MPxToolCommand) is used within the context. The method newToolCommand of MPxContext will return a new instance of the tool command that can be used in the context.

Once registered, the context can be used to create a new tool that can be used in a manner identical to built-in Maya tools. The tool command can also be used as a MEL command.

Parameters:
[in] commandName the name of the context command to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxToolCommand) that implements the new tool.
[in] toolCmdName the name of the tool command to register
[in] toolCmdCreator a pointer to a function that will return a pointer to a new instance of the class (derived from MPxToolCommand) that implements the new command.
[in] toolCmdSyntax a pointer to a function that will return a new instance of a syntax object (MSyntax) that implements the syntax of the command.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the command is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus deregisterContextCommand ( const MString &  commandName )
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Deregister the given user defined context command from Maya.

Once deregistered the user defined tool can no longer be used.

Parameters:
[in] commandName the name of the context command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus deregisterContextCommand ( const MString &  commandName,
const MString &  toolCmdName 
)
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Deregister the given user defined context command and tool command from Maya.

Once deregistered the user defined tool can no longer be used and the tool command can no longer be invoked from MEL.

Parameters:
[in] commandName the name of the context command to deregister
[in] toolCmdName the name of the command to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the command was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerNode ( const MString &  typeName,
const MTypeId &  typeId,
MCreatorFunction  creatorFunction,
MInitializeFunction  initFunction,
MPxNode::Type  type = MPxNode::kDependNode,
const MString *  classification = NULL 
)
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Register a new dependency node with Maya.

Once registered, the node can be used from MEL in a manner identical to built-in Maya nodes.

Parameters:
[in] typeName the name of the new type of node
[in] typeId a unique id that identifies this node
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxNode) that implements the new node type
[in] initFunction a pointer to a function that will initialize all the attributes of the new node type
[in] type the type of plugin node to be registered
[in] classification a string that determines how the node will be categorized in various rendering-related UI, such as the Create Render Node and HyperShade windows. See the documentation for the getClassification command for a list of the supported classifications. If no string is supplied then the node will not be considered a rendering node and will not be displayed in those UI.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the node type was successfully registered
  • MS::kFailure the registration failed.
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
Examples:
blindDataPluginMain.cpp, hlslPluginMain.cpp, latticeNoise.cpp, meshOpMain.cpp, particleAttrNodeMain.cpp, pointOnMeshInfoPlugin.cpp, slopeShader.cpp, and splitUVMain.cpp.
MStatus deregisterNode ( const MTypeId &  typeId )
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Deregister the given user defined dependency node type Maya.

Once deregistered new instances of the user defined dependency node can no longer be created. Additionally, any existing instances of the node type will be changed to the special type Unknown and will no longer evaluate in the dependency graph although they will be saved correctly if the scene is written.

Parameters:
[in] typeId the unique type id of the node type to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the node type was not owned by this plug-in
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
Examples:
latticeNoise.cpp.
MStatus registerShape ( const MString &  typeName,
const MTypeId &  typeId,
MCreatorFunction  creatorFunction,
MInitializeFunction  initFunction,
MCreatorFunction  uiCreatorFunction,
const MString *  classification = NULL 
)
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Registers the given user defined shape node with Maya.

Once registered, the shape can be used from MEL in a manner identical to built-in Maya nodes.

To deregister the shape node use the MFnPlugin::deregisterNode() method.

Parameters:
[in] typeName the name of the new type of user defined shape node
[in] typeId a unique id that identifies this node
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxSurfaceNode) that implements the new shape node type
[in] initFunction a pointer to a function that will initialize all the attributes of the new shape node type
[in] uiCreatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MGxSurfaceShapeUI) that is used to implement the drawing and selection functions of the user defined shape.
[in] classification a string that determines how the node will be categorized in various rendering-related UI, such as the Create Render Node and HyperShade windows. See the documentation for the getClassification command for a list of the supported classifications. If no string is supplied then the node will not be considered a rendering node and will not be displayed in those UI.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the node type was successfully registered
  • MS::kFailure the registration failed.
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerTransform ( const MString &  typeName,
const MTypeId &  typeId,
MCreatorFunction  creatorFunction,
MInitializeFunction  initFunction,
MCreateXformMatrixFunction  xformCreatorFunction,
const MTypeId &  xformId,
const MString *  classification = NULL 
)
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Registers the given user defined transform node with Maya.

Once registered, the transform can be used from MEL in a manner identical to built-in Maya nodes.

To deregister the transform node use the MFnPlugin::deregisterNode() method.

Parameters:
[in] typeName the name of the new type of user defined transform node
[in] typeId a unique id that identifies this node
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxTransform) that implements the new transform node type
[in] initFunction a pointer to a function that will initialize all the attributes of the new transform node type
[in] xformCreatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxTransformationMatrix) that is used to implement the matrix functions of the custom transform. For default behavior, use the MPxTransformationMatrix::creator method.
[in] xformId a unique id that identifies this transformation matrix. If MPxTransformationMatrix::creator is used, then MPxTransformationMatrix::baseTransformationMatrixId should be used.
[in] classification a string that determines how the node will be categorized in various rendering-related UI, such as the Create Render Node and HyperShade windows. See the documentation for the getClassification command for a list of the supported classifications. If no string is supplied then the node will not be considered a rendering node and will not be displayed in those UI.
Returns:
Status code
Status Codes:
  • MS::kSuccess The node type was successfully registered
  • MS::kFailure The registration failed.
  • MS::kObjectDoesNotExist The function set is not attached to an MObject.
Examples:
rockingTransformCheckMain.cpp, and rockingTransformMain.cpp.
MStatus registerData ( const MString &  typeName,
const MTypeId &  typeId,
MCreatorFunction  creatorFunction,
MPxData::Type  type = MPxData::kData 
)
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Register a new data type with Maya.

Once registered, the data type can be passed between dependency nodes in a manner identical to built-in Maya data types.

Parameters:
[in] typeName the name of the data type to register
[in] typeId the unique type id of the data type to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxData) that implements the new data type.
[in] type the type of data being registered, see the Type enum in MPxData.h for all available types

/return Status code

Status Codes:
  • MS::kSuccess if the data type is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus deregisterData ( const MTypeId &  typeId )
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Deregister the given user defined data type from Maya.

It is important to note that this method will always fail if there are any instances of the user-defined data in the scene. If the plug-in were to be allowed to deregister its implementation of the data, it would become impossible to save the scene since the writeASCII and writeBinary methods would no longer be accessible.

Parameters:
[in] typeId the unique type id of the data type to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kFailure the data type is being used by current instances of nodes in the dependency graph
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerDevice ( const MString &  deviceName,
MCreatorFunction  creatorFunction 
)
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Register a new input device with Maya.

Once registered, the new input device can be connected to Maya actions using the assignInputDevice command in MEL in a manner identical to built-in Maya devices. In Maya 1.0, only Midi input devices are supported and the creatorFunction must return a pointer to a MPxMidiInputDevice instance. This interface will be generalized in a future release.

Parameters:
[in] deviceName the name of the device to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxMidiInputDevice) that implements the new device.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the device is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus deregisterDevice ( const MString &  deviceName )
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Deregister the given user defined input device from Maya.

Parameters:
[in] deviceName the name of the input device to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerFileTranslator ( const MString &  translatorName,
char *  pixmapName,
MCreatorFunction  creatorFunction,
char *  optionsScriptName = NULL,
char *  defaultOptionsString = NULL,
bool  requiresFullMel = false,
MString  dataStorageLocation = MFnPlugin::kDefaultDataLocation 
)
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Register a new file translator with Maya.

It requires a name string containing the "name" by which Maya will refer to this file type, and a pathname to an "icon" file which Maya will use in its file selection dialogs.

Parameters:
[in] translatorName the string by which Maya will refer to this file type
[in] pixmapName the pathname of the icon used in file selection dialogs
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxFileTranslator) that implements the new file type.
[in] optionsScriptName the name of a MEL script that will be used to display the contents of the options dialog during file open and save.
[in] defaultOptionsString the default value of the options string that will be passed to the options script.
[in] requiresFullMel this should be set to true if the reader method in the derived class intends to issue MEL commands via the MGlobal::executeCommand method. Setting this to true will slow down the creation of new objects, but allows MEL commands other than those that are part of the Maya Ascii file format to function correctly. This parameter defaults to false.
[in] dataStorageLocation the default location where this translator will store its data relative to the current project. This defaults to MFnPlugin::kDefaultDataLocation The translator command parameter -defaultFileRule will return this value.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the file translator is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus deregisterFileTranslator ( const MString &  translatorName )
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Deregister the specified file translator with Maya.

Parameters:
[in] translatorName the name of the translator to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if the file translator is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus registerIkSolver ( const MString &  ikSolverName,
MCreatorFunction  creatorFunction 
)
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Register a new ik-solver with Maya.

NOTE: this method is obsolete. Instead, register the IK solver as a node as described in the example plug-in simpleSolverNode.cpp.

Parameters:
[in] ikSolverName name of the new IK solver
[in] creatorFunction pointer to a function that will return a pointer to a new instance of the class (derived from MPxIkSolver) that implements the new file type.
Returns:
Status code
Status Codes:
  • MS::kSuccess The ik-solver was successfully registered
  • MS::kObjectDoesNotExist The function set is not attached to an MObject
MStatus deregisterIkSolver ( const MString &  ikSolverName )
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Deregister the specified ik-solver with Maya.

NOTE: this method is obsolete. Instead, register the IK solver as a node as described in the example plug-in simpleSolverNode.cpp.

Parameters:
[in] ikSolverName the name of the ik solver to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if the ik-solver is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
MStatus registerCacheFormat ( const MString &  cacheFormatName,
MCreatorFunction  creatorFunction 
)
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Register a new cache format with Maya.

Parameters:
[in] cacheFormatName Name of the new cache format.
[in] creatorFunction Pointer to a function that will return a pointer to a new instance of the class (derived from MPxCacheFormat) that implements the new file type.
Returns:
Status code
Status Codes:
  • MS::kSuccess The cache format was successfully registered
  • MS::kObjectDoesNotExist The function set is not attached to an MObject
MStatus deregisterCacheFormat ( const MString &  cacheFormatName )
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Deregister the specified cache format with Maya.

Parameters:
[in] cacheFormatName the name of the cache format to deregister
Returns:
Status code
Status Codes:
MStatus registerUIStrings ( MInitializeFunction  registerMStringResources,
const MString &  pluginStringsProc 
)
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Set the callback and procedure names of routines that register plugin string resources and optionally load localized values for them.

These procedures are called immediately upon plugin load. They are responsible for registering all string resources that can be referred to during the plugin execution. If the string resources are localized, the localized values are also loaded at this time.

Each string resource is given a default value when it is registered. If the plugin is localized, any localized values specified will override the registered default and will be used instead of the default value when the resource value is queried.

The registerMStringResources callback is a function which makes a series of calls to MStringResource::registerString for each MStringResourceId to be registered. Its signature is described by the MInitializeFunction typedef.

The pluginStringsProc is a mel procedure that will be evaluated to register any other strings resources for the plugin, i.e. those used in the plugin's scripts (see the registerPluginString command). It is also responsible for loading the localized resource overrides if they are available (see loadPluginLanguageResources).

See also the following classes: MStringResourceId, MStringResource.

Parameters:
[in] registerMStringResources This callback is used to register MStringResources that are used by the plugin code. The callback signature type is defined by MInitializeFunction.
[in] pluginStringsProc The name of the mel procedure to be run during plugin load to register script-based resources. This script will also make the necessary calls to load localized string values if they exist.
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerDragAndDropBehavior ( const MString &  behaviorName,
MCreatorFunction  creatorFunction 
)
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Register a new drag and drop behavior with Maya.

Once registered, the new behavior can be used to finish connections between node drag and drops from the hyperGraph/hyperShade to other nodes or Maya UI.

Parameters:
[in] behaviorName the name of the drag and drop behavior to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxDragAndDropBehavior) that implements the new behavior.
Returns:
Status code
Status Codes:
  • MS::kSuccess if the bevavior is successfully registered
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject
Examples:
slopeShader.cpp.
MStatus deregisterDragAndDropBehavior ( const MString &  behaviorName )
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Deregister the given drag and drop behavior from Maya.

Parameters:
[in] behaviorName the name of the behavior to deregister
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
MStatus registerImageFile ( const MString &  imageFormatName,
MCreatorFunction  creatorFunction,
const MStringArray &  imageFileExtensions 
)
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Register a new image file translator with Maya.

Parameters:
[in] imageFormatName the name of the image format to register
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MImageFile) that implements the new file type.
[in] imageFileExtensions this list of file extensions this image file should be associated with.
Returns:
Status code
Status Codes:
MStatus deregisterImageFile ( const MString &  imageFormatName )
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Deregister the specified image file translator with Maya.

Parameters:
[in] imageFormatName the name of the image format to deregister
Returns:
Status code
Status Codes:
MStatus registerRenderPassImpl ( const MString &  passImplId,
MRenderPassDef *  passDef,
MCreatorFunction  creatorFunction,
bool  overload = false 
)
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Register a new render pass implementation with Maya and associate with the given render pass definition.

If an implementation with id passImplId has already been registered and creatorFunction is the same as the already registered creator function then the existing implementation will also be used for the current pass (SAME instances). It is an error if the passImplId is already defined and a different creatorFunction is used. If you wish to associate DIFFERENT instances of the same pass implementation with different passes, then use unique passImplIds when registering each.

Parameters:
[in] passImplId a unique name identifying the pass implementation
[in] passDef the render pass definition to associate this implementation with
[in] creatorFunction a pointer to a function that will return a pointer to a new instance of the class (derived from MPxRenderPassImpl) that implements the render pass definiton.
[in] overload Override any existing implementation in the registry
Returns:
Status code
Status Codes:
MStatus deregisterRenderPassImpl ( const MString &  passImplId )
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Deregister the specified render pass implementation with Maya.

This will remove the implementation from all passes it is associated with.

Parameters:
[in] passImplId the name identifying the pass implementation to remove
Returns:
Status code
Status Codes:
MObject findPlugin ( const MString &  pluginName ) [static]
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Returns an MObject corresponding to the named plugin.

If the plugin isn't loaded, the MObject will be kNullObj. This MObject may be used in the same way as the MObject passed to the plugin's initializePlugin() function. Do not hold onto this MObject, if you need it again later, call findPlugin() again.

Parameters:
[in] pluginName the name of the plugin you want a handle for.
Returns:
bool isNodeRegistered ( const MString &  typeName ) [static]
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Queries if the given typeName has been registered by maya or plugins.

Parameters:
[in] typeName the type name of a depend graph node to query.
Returns:
true if registered, false otherwise.
MTypeId matrixTypeIdFromXformId ( const MTypeId &  xformTypeId,
MStatus *  ReturnStatus = NULL 
)
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The function returns the MTypeId of the matrix when the MTypeId of the corresponding xform is given.

Parameters:
[in] xformTypeId the typeId of the transform.
[out] ReturnStatus Return status.
Returns:
MTypeId TypeId of the corresponding transformation matrix, if found.
MStringArray addMenuItem ( const MString &  menuItemName,
const MString &  parentName,
const MString &  commandName,
const MString &  commandParams,
bool  needOptionBox = false,
const MString *  optBoxFunction = NULL,
MStatus *  retStatus = NULL 
)
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The function adds the menuItem to the specified parent, and associates a command with it.

Additionally, an option box can be created and a MEL function/command can be added to it. The function returns the names of the new menuItem and the optionBox created.

Parameters:
[in] menuItemName This will be used as the label for the menuItem.
[in] parentName Name of the parent to which the new menuItem needs to be attached.
[in] commandName Command to be attached.
[in] commandParams Parameters for the command.
[in] needOptionBox Boolean indicating whether an option box is required. Default value is false.
[in] optBoxFunction MEL Function to be attached to the option box. If the needOptionBox is false, then this argument will have no effect.
[in] retStatus Return status.
Returns:
MStringArray returns the names of the new menuItems created. In case the method fails, and MStringArray has items in it, removeMenuItem() should be called on it to remove the unused UI references.
MStatus removeMenuItem ( MStringArray &  menuItemNames )
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The function removes the menuItem and the corresponding option box, if exists, from the UI.

Parameters:
[in] menuItemNames Names of the menuItem which needs to be removed.
Returns:
Status code
Status Codes:
MStatus registerMaterialInfo ( const MString &  materialInfoName,
MMaterialInfoFactoryFnPtr  fnPtr 
)
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Registers a new material information type with Maya.

Parameters:
[in] materialInfoName the new material info generator name.
[in] fnPtr pointer to function that return a new instance of material information node.
Returns:
Status code
Status Codes:
MStatus unregisterMaterialInfo ( const MString &  materialInfoName )
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Deregister the specified material info type with Maya.

Parameters:
[in] materialInfoName the material info generator name.
Returns:
Status code
Status Codes:
MStatus registerBakeEngine ( const MString &  bakeEngineGenName,
MBakeEngineCreatorFnPtr  fnPtr 
)
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Registers a new bake engine type with Maya.

Parameters:
[in] bakeEngineGenName the new bake engine generator name.
[in] fnPtr pointer to function that return a new instance of bake engine generator node.
Returns:
Status code
Status Codes:
MStatus unregisterBakeEngine ( const MString &  bakeEngineGenName )
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Deregister the bake engine type with Maya.

Parameters:
[in] bakeEngineGenName the bake engine generator name.
Returns:
Status code
Status Codes:
MStatus registerTransform ( const MString &  typeName,
const MTypeId &  typeId,
MCreatorFunction  creatorFunction,
MInitializeFunction  initFunction,
MCreatorFunction  xformCreatorFunction,
const MTypeId &  xformId,
const MString *  classification = NULL 
)
Search for all occurrences

Obsolete.

This method is obsolete.

Deprecated:
Use the other version of registerTransform instead.
Parameters:
[in] typeName
[in] typeId
[in] creatorFunction
[in] initFunction
[in] xformCreatorFunction
[in] xformId
[in] classification
Returns:
Status code
MStatus registerUI ( const MString &  creationProc,
const MString &  deletionProc,
const MString &  creationBatchProc = "",
const MString &  deletionBatchProc = "" 
)
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NO SCRIPT SUPPORT.

Sets the names of the mel procedures to be evaled to create and destroy any UI associated with the plugin.

You can use MEL procedure names as arguments to this method as long as the procedure is located in a file named procedure.mel. This works because, as described in the MEL documentation, when MEL is given a undefined procedure, it searchs MAYA_SCRIPT_PATH looking for a file with the name procedure.mel. If it finds such a file it is sourced and if the procedure was defined by the file, it is then executed.

Example: The procedure lassoToolCreateUI will be run when the plugin is loaded, the procedure lassoToolDeleteUI when the plugin is unloaded. This works as long as the MEL procedure lassoToolCreateUI is defined in a file called lassoToolCreateUI.mel and the procedure lassoToolDeleteUI is defined in a file called lassoToolDeleteUI.mel.

MStatus initializePlugin( MObject obj )
{
    MStatus status;

    MFnPlugin plugin( obj, "Autodesk - Example", "1.0", "Any");
    status = plugin.registerContextCommand( "lassoToolContext",
                                            lassoContextCmd::creator );

    if (!status) {
        status.perror("registerContextCommand");
        return status;
    }

    // set the mel procs to be run when the plugin is loaded / unloaded
    status = plugin.registerUI("lassoToolCreateUI", "lassoToolDeleteUI");
    if (!status) {
        status.perror("registerUIScripts");
        return status;
    }

    return status;
}
Parameters:
[in] creationProc The name of the procedure to be run when the plug in is loaded
[in] deletionProc The name of the procedure to be run when the plug in is unloaded
[in] creationBatchProc The name of the procedure to be run when the plug in is loaded in batch mode. The procedure should not contain UI related code.
[in] deletionBatchProc The name of the procedure to be run when the plug in is unloaded in batch mode. The procedure should not contain UI related code.
Returns:
Status code
Status Codes:
  • MS::kSuccess if successful
  • MS::kObjectDoesNotExist if the function set is not attached to an MObject.
const char * className ( ) [static]
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Returns the name of this class.

Returns:
Name of this class.

Reimplemented from MFnBase.

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