Identifies the hook offset length for a hook type

Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)

Syntax

C#
`public double GetHookOffsetLength( ElementId hookId )`

Visual Basic
`Public Function GetHookOffsetLength ( _ hookId As ElementId _ ) As Double`

Visual C++
`public: double GetHookOffsetLength( ElementId^ hookId )`

The hook offset length for a hook type

Remarks

If the AutoCalcHookLengths property is turned off, the default hook offset length will be returned

Exception	Condition
Autodesk.Revit.Exceptions ArgumentException	the rebar hook type id hookId is not valid -or- the hook specified by id hookId doesn't have valid offset length -or- The element hookId does not exist in the document containing this RebarBarType -or- the hook specified by id hookId doesn't have valid default offset length
Autodesk.Revit.Exceptions ArgumentNullException	A non-optional argument was NULL
Autodesk.Revit.Exceptions InvalidOperationException	The document containing this RebarBarType is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The element is a member of a loaded family. -or- The element is a member of a group type that is not being edited. -or- hookId is a member of a loaded family. -or- hookId is a member of a group type that is not being edited.