Le samedi 20 décembre 2014 15:56:30, Paul Meems a écrit : > With our ActiveX control (MapWinGIS) written in C++ we use GDAL v2. > We use the pre-build binaries from GISInternals.com. > > We have two C# applications that use our ActiveX control. One does some > testing and its executable is in the same folder as our ocx and the gdal > dlls. This folder also has the gdalplugins folder with the ECW, MrSid en > NetCDF plug-ins. > > When I open an ECW file in the testapplication I get this error: > GDAL FAILURE: `[..]\ECW-ERMapper-Compressed-Wavelets.ecw' not recognised as > a supported file format. But we can open the file and it is shown properly > in our map.
That's really surprising ! Almost a miracle, but I don't believe in miracles. The only explanation I can see is that there are 2 opening attempts, one before calling GDALAllRegister() and the second one afterwards... What would be weird code... So that must be something else. > > Our second C# application is a demo and has its executables in its own > folder. > I've set the GDAL_DRIVER_PATH env. variable to the gdalplugins folder. > When I now open the ECW file in this application I get this error: > GDAL FAILURE: Can't load requested DLL: > D:\dev\MapwinGIS\MapWinGIS\trunk\bin\Win32\gdalplugins\gdal_ECW_JP2ECW.dll There should be another line afterwards with an error code and an error message, but perhaps your error handler "eats" that extra line. > But that is the location of the dll. I've double checked. Even the casing > is correct. Perhaps a dependency problem. Can the ECW SDK dll be reachable and/or in the path ? > I also get this warning: GDAL WARNING: Failed to open > [..]\ECW-ERMapper-Compressed-Wavelets.ecw > > All GDAL binaries were downloaded yesterday, but I believe we had the same > issue with prior versions of GDALv2 as well. But because the test > application did show the image we ignored it. > But the demo is a bit more strict ;) > > Any suggestion is much appreciated. > > Thanks, > > Paul > > *Paul Meems * > Release manager, configuration manager > and forum moderator of MapWindow GIS. > www.mapwindow.org > > Owner of MapWindow.nl - Support for > Dutch speaking users. > www.mapwindow.nl > > > > *The English presentations of the MapWindow GIS Conference 2014 are online. > <http://www.slideshare.net/mapwindow>* -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
