Working with WMS
From Wildsong
Find out what a WMS service can do
Start with the basic URL
http://wms.oregonexplorer.info/ImageX/ecw_wms.dll?
Then add the capabilities request
http://wms.oregonexplorer.info/ImageX/ecw_wms.dll?request=GetCapabilities&service=wms
This should return an XML file with the capabilities of the server listed.
Setting the SRS
In my case, the default for this server is to return its images in the spatial referece setting "EPSG=4326" which is unprojected WGS84. What I need is Oregon state system which is "EPSG=2992"
I can add the SRS like this:
http://wms.oregonexplorer.info/ImageX/ecw_wms.dll?SRS=EPSG:2992