|  Compound  | 
 Returns the index of the nearest non-zero width layer before this layer. 
 Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
 Syntax
 Syntax  Parameters
- thisIdx Int32
- The layer from which to look for a non-zero width layer.
Return Value
Int32The index of the layer found.
 Remarks
 Remarks   If this layer is non-zero width, it will be returned. If there are non-zero width layers found, returns -1. 
  See Also
 See Also