globalmapper.SetLayerLabelAttribute
===================================

.. currentmodule:: globalmapper
.. py:function:: SetLayerLabelAttribute (GM_LayerHandle_t32 aLayer, str aAttrName, uint32 aReserved) -> GM_Error_t32

	Sets the name of the feature attribute to use for the display label for features that don't already have a display label.
	
	:param GM_LayerHandle_t32 aLayer: Layer to modify labels for
	:param str aAttrName: Name of attribute to use for naming labels
	:param uint32 aReserved: Reserved value for future expansion (must be zero)
	:returns: Error Code
	:rtype: GM_Error_t32