I am using GetFeatureInfo query to WMS service. When I click a WMS object on the map, the response is coming.
http://localhost:8080/geoserver/wms? request=GetFeatureInfo &service=WMS &version=1.1.1 &layers=topp%3Astates &styles= &srs=EPSG%3A4326 &format=image%2Fpng &bbox=-145.151041%2C21.73192%2C-57.154894%2C58.961059 &width=780 &height=330 &query_layers=topp%3Astates &info_format=text%2Fhtml &feature_count=50 &x=353 &y=145 &exceptions=application%2Fvnd.ogc.se_xml
But I want to send a request a polygonal area. Not a single x,y location. How can I do this? Is possible?