globalmapper.SetLayerDescription
================================

.. currentmodule:: globalmapper
.. py:function:: SetLayerDescription (GM_LayerHandle_t32 aLayer, string aDesc) -> GM_Error_t32

	Sets the description to use for this layer in the GM_LayerInfo_t structure and when adding it to a map catalog.
	
	:param GM_LayerHandle_t32 aLayer: layer to set description for
	:param str aDesc: description to use (pass None to restore default)
	:returns: Error Code
	:rtype: GM_Error_t32