GetOnlineLayerZoomScale
=======================

.. currentmodule:: globalmapper
.. py:function:: GetOnlineLayerZoomScale (GM_LayerHandle_t32 aLayer, GM_Rectangle_t aWorldBounds, GM_PixelRect_t aPixelRect, bool aForExport, str aExtraOpts, uint32 aReserved=0) -> GM_Error_t32, uint32

	Determine the zoom scale that will be used to draw/export from a provided tiled online layer for a given bounds.
	
	:param GM_LayerHandle_t32 aLayer: Tiled online layer to query
	:param GM_Rectangle_t aWorldBounds: World bounds to convert from or None for last drawn
	:param GM_PixelRect_t aPixelRect: Pixel bounds to convert from or None for last drawn
	:param bool aForExport: Get zoom scale for an export (TRUE) or draw (FALSE)
	:param str aExtraOpts: str with extra options, like RES_MULT
	:param uint32 aReserved: Reserved for future use; defaults to 0
	:returns: Error Code
	:rtype: GM_Error_t32
	:return: Zoom scale that will be used
	:rtype: uint32