Defines
#define	ANIMTYPE_NODE 1
#define	ANIMTYPE_ROOTNODE 3
#define	ANIMTYPE_CONTROL 2
#define	MAX_TRACK_VIEWS 16
#define	ALL_TRACK_VIEWS 0xffff
#define	MAX_TRACKVIEW_SELSETS 16
#define	TRACKVIEW_NODE 0
	'type' argument to the OpenTreeEntry, CloseTreeEntry, IsTreeEntryOpen methods
#define	TRACKVIEW_ANIM 1
	operate on the tree based on the animatable/subanim relationship
#define	A_DERIVEDOBJ_DONTDELETE (1<<9)
	When the last modifier is deleted form this derived object, don't delete the derived object.
#define	A_COMPONENT_LOCKED (1<<19)
	Needed for CompositeBase and its children.
#define	A_TVNODE_DONTRESACLECONTROLLERS (1 << 5)
	Don't call RescaleWorldUnits on sub-controllers.
#define	A_RESERVED_B16 (1<<16)
	Reserved for future internal use.
#define	A_CHANGE_PARENTS_DONE (1<<17)
	Used internally.
#define	A_REFMAKER_REFS_CHECKED (1<<18)
	Used internally.
#define	A_DEPENDENCY_TEST (1<<26)
	Used to test for a dependency.
#define	A_LOCK_TARGET (1<<27)
	Ref target isn't deleted when dependents goes to 0 if this flag is set.
Atmospheric flags
#define	A_ATMOS_DISABLED (1<<5)
	The atmosphere effect is disabled.
#define	A_ATMOS_OBJECTXREF (1<<6)
#define	A_ATMOS_SCENEXREF (1<<7)
Tone Operator flags
#define	A_TONEOP_DISABLED (1<<5)
	The exposure control is disabled.
#define	A_TONEOP_PROCESS_BG (1<<6)
	The exposure control proceses the background.
#define	A_TONEOP_INDIRECT_ONLY (1<<7)
Object flags
#define	A_OBJ_CREATING (1<<5)
	The object is being created. It doesn't want to snap to itself.
#define	A_OBJ_BEING_EDITED (1<<7)
Modifier flags
#define	A_MOD_DISABLED (1<<5)
	The modifier is disabled.
#define	A_MOD_BEING_EDITED (1<<6)
	The modifer is deleted.
#define	A_MOD_USE_SEL (1<<7)
	No longer used - use sub-ob selection.
#define	A_MOD_DISABLED_INVIEWS (1<<8)
	Modifier is disabled in viewports only.
#define	A_MOD_DISABLED_INRENDER (1<<9)
	Modifier is disabled in renderer only.
Modapp flags
#define	A_MODAPP_DISABLED (1<<5)
	Used internally.
#define	A_MODAPP_SELECTED (1<<6)
	parent node is selected
#define	A_MODAPP_DISPLAY_ACTIVE (1<<7)
	Used internally.
#define	A_MODAPP_DYNAMIC_BOX (1<<8)
	Used internally.
#define	A_MODAPP_RENDERING (1<<9)
	Render begin turns this on and render end turns it off.
Control flags
#define	A_ORT_MASK 7
	Used internally.
#define	A_ORT_BEFORESHIFT 5
	Uses bits 5,6 and 7 to store ORT.
#define	A_ORT_AFTERSHIFT 8
	Uses bits 8,9 and 10 to store ORT.
#define	A_CTRL_DISABLED (1<<11)
	Used internally.
#define	A_ORT_DISABLED (1<<19)
	Indicates that the ORT is disabled.
Inode flags
#define	A_INODE_IK_TERMINATOR (1<<5)
	Terminates the top of an IK chain.
#define	A_INODE_IK_POS_PINNED (1<<6)
	The position is pinned.
#define	A_INODE_IK_ROT_PINNED (1<<7)
	The rotation is pinned.
#define	A_INODE_IN_UPDATE (1<<9)
	Used internally only.
#define	A_INODE_IN_UPDATE_TM (1<<10)
	Flag is set if it's updating it's TM. Don't Call GetNodeTM if it is.
Flags for Hold and Restore logic
For "lazy holding" to avoid multiple holding.
#define	A_HELD (1<<12)
	Typically a plug-in would not hold unless this flag was not set.
#define	A_SET (1<<13)
	Similar to A_HELD except is used by controllers.
#define	A_IS_DELETED (1<<14)
	Used internally.
#define	A_BEING_AUTO_DELETED (1<<15)
	Used internally.
Reserved for superclass use
#define	A_SUPERCLASS1 (1<<20)
#define	A_SUPERCLASS2 (1<<21)
Reserved for use by plugins
These flags are not persisted with the max file, thus they should only be used as temporary storage. It is highly recommended that plugin code clears the flag it wishes to use before starting to set it on Animatable instances.
#define	A_PLUGIN1 (1<<22)
#define	A_PLUGIN2 (1<<23)
#define	A_PLUGIN3 (1<<24)
#define	A_PLUGIN4 (1<<25)
General work flags
These flags can be used by both 3ds Max and plugins. These flags are not persisted with the max file, thus they should only be used as temporary storage. It is highly recommended that plugin code clears the work flag it wishes to use before starting to set it on Animatable instances.
#define	A_WORK1 (1<<28)
#define	A_WORK2 (1<<29)
#define	A_WORK3 (1<<30)
#define	A_WORK4 (1<<31)
Values for Animatable extended flags.
Reserved for future internal use See also: Animatable::SetAFlagEx(DWORD mask) Animatable::ClearAFlagEx(DWORD mask) Animatable::TestAFlagEx(DWORD mask)
#define	A_EX_RESERVED_B00 (1<<0)
#define	A_EX_RESERVED_B01 (1<<1)
#define	A_EX_RESERVED_B02 (1<<2)
#define	A_EX_RESERVED_B03 (1<<3)
#define	A_EX_RESERVED_B04 (1<<4)
#define	A_EX_RESERVED_B05 (1<<5)
#define	A_EX_RESERVED_B06 (1<<6)
#define	A_EX_RESERVED_B07 (1<<7)
#define	A_EX_RESERVED_B08 (1<<8)
#define	A_EX_RESERVED_B09 (1<<9)
#define	A_EX_RESERVED_B10 (1<<10)
#define	A_EX_RESERVED_B11 (1<<11)
#define	A_EX_RESERVED_B12 (1<<12)
#define	A_EX_RESERVED_B13 (1<<13)
#define	A_EX_RESERVED_B14 (1<<14)
#define	A_EX_RESERVED_B15 (1<<15)
#define	A_EX_RESERVED_B16 (1<<16)
#define	A_EX_RESERVED_B17 (1<<17)
#define	A_EX_RESERVED_B18 (1<<18)
#define	A_EX_RESERVED_B19 (1<<19)
#define	A_EX_RESERVED_B20 (1<<20)
#define	A_EX_RESERVED_B21 (1<<21)
#define	A_EX_RESERVED_B22 (1<<22)
#define	A_EX_RESERVED_B23 (1<<23)
#define	A_EX_RESERVED_B24 (1<<24)
#define	A_EX_RESERVED_B25 (1<<25)
#define	A_EX_RESERVED_B26 (1<<26)
#define	A_EX_RESERVED_B27 (1<<27)
#define	A_EX_RESERVED_B28 (1<<28)
#define	A_EX_RESERVED_B29 (1<<29)
#define	A_EX_RESERVED_B30 (1<<30)
#define	A_EX_RESERVED_B31 (1<<31)
Values for Animatable::aflag
The following flags are bits of the aflag data member of class Animatable. See methods Animatable::ClearAFlag(), Animatable::SetAFlag() and Animatable::TestAFlag() to work with these flags.
#define	A_EVALUATING 1
	Used Internally.
#define	A_NOTIFYDEP (1<<1)
	Used Internally.
#define	A_DEPENDENTS_BEING_ENUMERATED (1<<2)
	Used Internally.
#define	A_RESERVED_B03 (1<<3)
	Reserved for future internal use.
#define	A_OBJECT_REDUCED (1<<4)
	Used Internally.