C++ API Reference
MFnKeyframeDeltaAddRemove Class Reference

Function set for the addition or removal keys on a curve. More...

#include <MFnKeyframeDeltaAddRemove.h>

+ Inheritance diagram for MFnKeyframeDeltaAddRemove:

Public Types

enum  DeltaType { kAdded, kRemoved, kReplaced }
 Type of change. More...
 

Public Member Functions

virtual MFn::Type type () const
 Function set type. More...
 
virtual ~MFnKeyframeDeltaAddRemove ()
 Destructor.
 
 MFnKeyframeDeltaAddRemove ()
 Default constructor.
 
 MFnKeyframeDeltaAddRemove (MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
DeltaType deltaType (MStatus *ReturnStatus=NULL) const
 Indicates the type of change that this class instance represents. More...
 
double value (MStatus *ReturnStatus=NULL) const
 The value of the key that was added or removed. More...
 
MTime time (MStatus *ReturnStatus=NULL) const
 The time value of the key that was added or removed. More...
 
unsigned int keyIndex (MStatus *ReturnStatus=NULL) const override
 The index of this key on the animation curve. More...
 
double replacedValue (MStatus *ReturnStatus=NULL) const
 The value of the key that was replaced. More...
 
 MFnKeyframeDeltaAddRemove (const MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
- Public Member Functions inherited from MFnKeyframeDelta
virtual ~MFnKeyframeDelta ()
 Destructor.
 
 MFnKeyframeDelta ()
 Default constructor.
 
 MFnKeyframeDelta (MObject &object, MStatus *ReturnStatus=NULL)
 Constructor. More...
 
MObject paramCurve (MStatus *ReturnStatus=NULL) const
 Return the Animation Curve MObject that this key belongs to. More...
 
 MFnKeyframeDelta (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 MFnKeyframeDelta
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)
 Returns the type string for a given type. More...
 
static bool isValid (MFn::Type)
 Returns true if type is in the range of valid types. More...
 

Detailed Description

Function set for the addition or removal keys on a curve.

Captures the addition or removal of key on a curve. keyIndex(...) will return the index of the key that was added or removed.

Member Enumeration Documentation

enum DeltaType

Type of change.

Enumerator
kAdded 

Key added.

kRemoved 

Key removed.

kReplaced 

Key replaced.

Constructor & Destructor Documentation

MFnKeyframeDeltaAddRemove ( 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
MFnKeyframeDeltaAddRemove ( 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::kKeyframeDeltaAddRemove.

Returns
the class type.

Reimplemented from MFnKeyframeDelta.

OPENMAYA_MAJOR_NAMESPACE_OPEN const char * className ( )
static

Returns the name of this class.

Return the class name : "MFnKeyframeDeltaAddRemove".

Returns
Name of this class.
MFnKeyframeDeltaAddRemove::DeltaType deltaType ( MStatus ReturnStatus = NULL) const

Indicates the type of change that this class instance represents.

Parameters
[out]ReturnStatus
Returns
  • kAdded - a key has been added.
  • kRemoved - a key has been removed.
Status Codes:
  • MS::kSuccess The operation succeeded.
  • MS::kFailure An object error has occurred.
double value ( MStatus ReturnStatus = NULL) const

The value of the key that was added or removed.

Parameters
[out]ReturnStatusReturn code.
Returns
A double value
Status Codes:
  • MS::kSuccess The operation succeeded.
  • MS::kFailure An object error has occurred.
MTime time ( MStatus ReturnStatus = NULL) const

The time value of the key that was added or removed.

Parameters
[out]ReturnStatusReturn code.
Returns
A MTime value of the added/removed key.
Status Codes:
  • MS::kSuccess The operation succeeded.
  • MS::kFailure An object error has occurred.
unsigned int keyIndex ( MStatus ReturnStatus = NULL) const
overridevirtual

The index of this key on the animation curve.

Note that when keys are added and then moved in a single action, the delta for the added key may refer to a key that no longer exists. In this case, the index returned related to the add operation will be the index where the key would be if it still existed on the curve. For example, if an animation curve has keys at frames 1 and 10, and a key is added at frame 12 and then moved to frame 11 in a single action, when the callback for the addition is received, the key at frame 12 will no longer exist. In this case, the keyIndex returned will be 3, to indicate that the key would be at index 3 if it existed.

Parameters
[out]ReturnStatusReturn code.
Returns
An unsigned int representing the position of the key on the curve.
Status Codes:
  • MS::kSuccess The operation succeeded.
  • MS::kFailure An object error has occurred.
  • MS::kInvalidParameter key index is not available for this delta object.

Reimplemented from MFnKeyframeDelta.

double replacedValue ( MStatus ReturnStatus = NULL) const

The value of the key that was replaced.

This method is only applicable to the kReplaced operation. Otherwise it will return 0.

Parameters
[out]ReturnStatusReturn code.
Returns
A double value
Status Codes:
  • MS::kSuccess The operation succeeded.
  • MS::kFailure An object error has occurred.

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