A3DPDFDocumentGetNumberLayers
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A3DStatus
A3DPDFDocumentGetNumberLayers(const A3DPDFDocument *pDoc, A3DInt32 *piNbLayers) Function to get the number of layers in the document.
Parameters
pDoc: The document to work with.
piNbLayers: The number of layers in the document.
Returns
A3D_SUCCESS in case of success or an error code
