How do I show my WMS layer using QGIS server and OpenLayers?

Question

I've installed qgis server and it works fine. I've put qgs file in the server folder dir and using "Add WMS layer" from QGIS I manage to view the qgs file.

This is how I use get capabilities for example : http://www.localhost.com/qgis/qgis_mapserv.fcgi.exe?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities&map=D:/OSGeo4W/apps/qgis/bin/MyLondon.qgs

Now my problem is that in all Openlayers WMS examples , adding wms layer looks like this :

 layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
         "http://vmap0.tiles.osgeo.org/wms/vmap0",
          {layers: 'basic'}
           );

How do I convert my WMS to this format ? Where in the url I set the project name and where the layer name ?

Thx.

Answer 1

I've posted a solution that works for me on http://underdark.wordpress.com/2012/03/30/qgis-server-on-ubuntu-step-by-step/. Adjusted to your information, it would be something like:

wms = new OpenLayers.Layer.WMS(
'london_basic', "http://www.localhost.com/qgis/qgis_mapserv.fcgi.exi",
{
    layers: 'basic', 
    format: 'image/png',
    map: 'D:/OSGeo4W/apps/qgis/bin/MyLondon.qgs',
}, 
{
    buffer: 1, 
    isBaseLayer: true, 
    graphicZIndex: 0, 
}
);

Answer 2

Is the same for me, I stil have nothing in OpenLayers, but its works in QGIS. Do you solve this problem?

Romain