On Mon, Feb 8, 2010 at 2:11 PM, Shuduo Sang <[email protected]> wrote: > I am a newbie who study efl programming recently. I try to write my first > program but meet problem always return NULL for creating canvas. I have > googled someone met that too but no clear answer. > I can get supported engines by ecore_evas_engines_get(), are software_x11, > xrender_x11, opengl_x11, fb, and buffer. > My platform is Ubuntu 9.10 and I think I installed all necessary libraries > since I can build it successfully by command. > > gcc `pkg-config --libs --cflags evas ecore ecore-evas` ecore_test.c -o > ecore_test > > My code is following. > > ... > > 22 if ( !ecore_init()) return EXIT_FAILURE; > 23 if ( !ecore_evas_init()) return EXIT_FAILURE; > 24 > 25 if (NULL == (eina_list = ecore_evas_engines_get())) > 26 return EXIT_FAILURE; > 27 > 28 EINA_LIST_FOREACH(eina_list, l, data) > 29 if(data) printf("data %s\n", data); > 30 ecore_evas_engines_free(eina_list); > 31 > 32 ecore_evas = ecore_evas_software_x11_new(NULL, 0, 0, 0, W, H); > 33 if (!ecore_evas) > 34 ecore_evas = ecore_evas_gl_x11_new(NULL, 0, 0, 0, W, H); > 35 if (!ecore_evas) > 36 ecore_evas = ecore_evas_fb_new(NULL, 0, W, H); > 37 if (!ecore_evas) > 38 ecore_evas = ecore_evas_xrender_x11_new(NULL, 0, 0, 0, > W, H); > 39 if (!ecore_evas){ > 40 printf("ERROR: Cannot create canvas\n"); > 41 return EXIT_FAILURE; > 42 }
You can use "ecore_evas = ecore_evas_new(NULL, 0, 0, W, H, NULL);". And it will automatically pick a working engine. -- Cedric BAIL ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ enlightenment-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
