# AddLayer strange behaviour **URL:** \ **Category:** MapWinGIS\ **Created:** [January 5, 2021, 5:19pm UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857 "2021-01-05T17:19:18Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![MAX](https://avatars.discourse-cdn.com/v4/letter/m/e5b9ba/32.png) [@MAX](https://mapwindow.discourse.group/u/MAX)\ **Post date:** [January 5, 2021, 5:19pm UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/1 "2021-01-05T17:19:18Z")
Dim intLayerHandle As Integer = AxMap1.AddLayer(objWmsLayer, True) please explain me in that cases intLayerHandle is -1 (error) I tried with a typo in baseurl but the result is always greater than -1 so i can’t understand if it’s really an error ---
**Author:** ![jerryfaust](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/jerryfaust/32/378_2.png) [@jerryfaust](https://mapwindow.discourse.group/u/jerryfaust)\ **Post date:** [January 5, 2021, 7:56pm UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/2 "2021-01-05T19:56:41Z")
Hello @MAX Are you saying that you always get a Handle greater than -1, but there is still an error? It’s possible, perhaps, with the WMS layer, that the layer object might be added successfully, returning a valid layer handle, but that there is still something wrong internally with the WMS layer itself, which might cause it not to display (including an invalid URL). Regards, Jerry. ---
**Author:** ![jerryfaust](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/jerryfaust/32/378_2.png) [@jerryfaust](https://mapwindow.discourse.group/u/jerryfaust)\ **Post date:** [January 5, 2021, 10:01pm UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/3 "2021-01-05T22:01:41Z")
Just as a follow-up, you can look at the Global or WMS-specific error after trying to load the layer. Something like: ``` objWmsLayer.ErrorMsg(objWmsLayer.LastErrorCode) ``` ---
**Author:** ![MAX](https://avatars.discourse-cdn.com/v4/letter/m/e5b9ba/32.png) [@MAX](https://mapwindow.discourse.group/u/MAX)\ **Post date:** [January 6, 2021, 7:41am UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/4 "2021-01-06T07:41:55Z")
I try now thanks @jerryfaust …yes, map control don’t display the wms can you help me? can you try to solve for me? here il an example: [https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?service=WMS&request=GetMap&layers=CP.CadastralParcel&styles=&format=image%2Fpng&transparent=true&version=1.1.1&width=256&height=256&srs=EPSG%3A6706&bbox=10.350494384765627,44.788657917188125,10.351867675781252,44.78963254761407](https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?service=WMS&request=GetMap&layers=CP.CadastralParcel&styles=&format=image%2Fpng&transparent=true&version=1.1.1&width=256&height=256&srs=EPSG%3A6706&bbox=10.350494384765627,44.788657917188125,10.351867675781252,44.78963254761407) and getcapabilities: [https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities](https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities) [https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities](https://wms.cartografia.agenziaentrate.gov.it/inspire/wms/ows01.php?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities) ---
**Author:** ![MAX](https://avatars.discourse-cdn.com/v4/letter/m/e5b9ba/32.png) [@MAX](https://mapwindow.discourse.group/u/MAX)\ **Post date:** [January 6, 2021, 9:12am UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/5 "2021-01-06T09:12:42Z")
It says “No Error” (I tried with typo error in baseurl, wrong bbox, wrong epsg, wrong version… same message) this is MW5 with wms: ![mw5](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/8007a785fefe93e13b20a10bfcf327080101a493.jpeg) I see inverted coordinates plus a bad visualization 🙂 by the way… this is extracted from 1.1.1 getcapabilities: > LatLonBoundingBox minx=“2” miny=“33” maxx=“19” maxy=“48” > BoundingBox SRS=“EPSG:6706” minx=“2” miny=“33” maxx=“19” maxy=“48” and this from 1.3.0: > EX\_GeographicBoundingBox > westBoundLongitude 2 westBoundLongitude > eastBoundLongitude 19 eastBoundLongitude > southBoundLatitude 33 southBoundLatitude > northBoundLatitude 48 northBoundLatitude > /EX\_GeographicBoundingBox > BoundingBox CRS=“EPSG:6706” minx=“33” miny=“2” maxx=“48” maxy=“19” ---
**Author:** ![pmeems](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/pmeems/32/9_2.png) [@pmeems](https://mapwindow.discourse.group/u/pmeems)\ **Post date:** [January 5, 2022, 2:13pm UTC](https://mapwindow.discourse.group/t/addlayer-strange-behaviour/857/6 "2022-01-05T14:13:23Z")
Sorry for the late reply. I see your map projection (WGS84) isn’t the same as the WMS projection (EPSG:6706). Try to match them first. And I’ve seen posts here about adding WMS layers and they had to switch the min and max values. You could try that as well.