Returns the index of the nearest non-zero width layer before this layer.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)

Syntax

C#
`public int GetPreviousNonZeroLayerIndex( int thisIdx )`

Visual Basic
`Public Function GetPreviousNonZeroLayerIndex ( _ thisIdx As Integer _ ) As Integer`

Visual C++
`public: int GetPreviousNonZeroLayerIndex( int thisIdx )`

thisIdx: Type: SystemInt32
The layer from which to look for a non-zero width layer.

The index of the layer found.

Remarks

If this layer is non-zero width, it will be returned. If there are non-zero width layers found, returns -1.