NAME
        NewLayerInfo -- allocate and initialize full layer_info structure.

    SYNOPSIS
        result = NewLayerInfo()
        d0

        struct layer_info *newlayerinfo( void );

    FUNCTION
        allocate memory required for full layer_info structure.
        Initialize layer_info structure in preparation to use
        other layer operations on this list of layers.
        Make the layer_info unlocked (open).

    INPUTS
        None

    RESULT
        result- pointer to layer_info structure if successful
                NULL if not enough memory

    BUGS

    SEE ALSO
        graphics/layers.h