C++ API Reference

String function set for dependency node data. More...

#include <MFnStringData.h>

+ Inheritance diagram for MFnStringData:

Public Member Functions

virtual MFn::Type type () const
 Function set type. More...
 
virtual ~MFnStringData ()
 Destructor.
 
 MFnStringData ()
 Default constructor.
 
 MFnStringData (MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
MString string (MStatus *ReturnStatus=NULL) const
 Return a copy of the string held in this instance. More...
 
MStatus set (const MString &newString)
 Set this instance to hold a copy of the given string. More...
 
MObject create (const MString &str, MStatus *ReturnStatus=NULL)
 Create a new MObject, attach it to this instance and initialize it to a copy of the given string. More...
 
MObject create (MStatus *ReturnStatus=NULL)
 Create a new MObject, attach it to this instance and initialize it to the null string. More...
 
 MFnStringData (const MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
- Public Member Functions inherited from MFnData
virtual ~MFnData ()
 Destructor.
 
 MFnData (MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
 MFnData ()
 Default class constructor.
 
 MFnData (const MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. 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=nullptr) 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 const char * className ()
 Returns the name of this class. More...
 
- Static Public Member Functions inherited from MFnData
static const char * className ()
 Returns the name of this class. More...
 
- Static Public Member Functions inherited from MFnBase
static const char * className ()
 Returns the name of this class. More...
 
static const char * typeString (MFn::Type)
 Introduced in 2020.0 More...
 
static bool isValid (MFn::Type)
 Introduced in 2020.0 More...
 

Additional Inherited Members

- Public Types inherited from MFnData
enum  Type {
  kInvalid, kNumeric, kPlugin, kPluginGeometry,
  kString, kMatrix, kStringArray, kDoubleArray,
  kFloatArray, kIntArray, kPointArray, kVectorArray,
  kMatrixArray, kComponentList, kMesh, kLattice,
  kNurbsCurve, kNurbsSurface, kSphere, kDynArrayAttrs,
  kDynSweptGeometry, kSubdSurface, kNObject, kNId,
  kAny, kFalloffFunction, kLast
}
 Types of dependency graph data. More...
 

Detailed Description

String function set for dependency node data.

MFnStringData allows the creation and manipulation of MString data objects for use in the dependency graph.

If a user written dependency node either accepts or produces MString, then this class is used to extract or create the data that comes from or goes to other dependency graph nodes. The MDataHandle::type method will return kStringData when data of this type is present. To access it, the MDataHandle::data method is used to get an MObject for the data and this should then be used to initialize an instance of MFnStringData.

Examples:
AbcImport/AlembicNode.cpp, AbcImport/CreateSceneHelper.cpp, AbcImport/NodeIteratorVisitorHelper.cpp, cgFx/cgfxShaderNode.cpp, dx11Shader/dx11Shader.cpp, fileTexture/fileTexture.cpp, findFileTexturesCmd/findFileTexturesCmd.cpp, glslShader/GLSLShader.cpp, hlslShader/hlslShader.cpp, MayaPluginForSpreticle/spReticleLoc.cpp, sceneAssembly/adskPrepareRenderGlobals.cpp, stringFormatNode/stringFormatNode.cpp, and uiDrawManager/uiDrawManager.cpp.

Constructor & Destructor Documentation

MFnStringData ( MObject object,
MStatus ReturnStatus = NULL 
)

Constructor.

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

Parameters
[in]objectThe MObject to attach the function set to
[out]ReturnStatusthe 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
MFnStringData ( const MObject object,
MStatus ReturnStatus = NULL 
)

Constructor.

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

Parameters
[in]objectThe MObject to attach the function set to
[out]ReturnStatusthe 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

MFn::Type type ( ) const
virtual

Function set type.

Return the class type : MFn::kStringData.

Returns
the class type.

Reimplemented from MFnData.

OPENMAYA_MAJOR_NAMESPACE_OPEN const char * className ( )
static

Returns the name of this class.

Return the class name : "MFnStringData".

Returns
Name of this class.
MString string ( MStatus ReturnStatus = NULL) const

Return a copy of the string held in this instance.

Parameters
[out]ReturnStatuskFailure if the instance is not attached to an MObject, and kSuccess otherwise.
Returns
An MString containing the string
Examples:
findFileTexturesCmd/findFileTexturesCmd.cpp.
MStatus set ( const MString string)

Set this instance to hold a copy of the given string.

Parameters
[in]stringthe MString to copy
Returns
  • kSuccess operation successfull.
  • kFailure instance is not attached to an MObject
MObject create ( MStatus ReturnStatus = NULL)

Create a new MObject, attach it to this instance and initialize it to the null string.

Parameters
[out]ReturnStatuskSuccess
Returns
The new MObject

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