- yes, this does break scripts, but the api is marked experimental. ED_region_draw_cb_activate() adds a callback to a region type whereas the api made it look like the callback was being added to the region instance. Use a class method on bpy.types.Space to manage region drawing, eg. was: self._handle = context.region.callback_add(draw_callback_px, args, 'POST_PIXEL') is now: self._handle = bpy.types.SpaceView3D.draw_handler_add(draw_callback_px, args, 'WINDOW', 'POST_PIXEL')
		
			
				
	
	
		
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| /*
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|  * ***** BEGIN GPL LICENSE BLOCK *****
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|  *
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|  * This program is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU General Public License
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|  * as published by the Free Software Foundation; either version 2
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|  * of the License, or (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * along with this program; if not, write to the Free Software Foundation,
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|  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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|  *
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|  * Contributor(s): Campbell Barton
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|  *
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|  * ***** END GPL LICENSE BLOCK *****
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|  */
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| 
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| /** \file blender/python/intern/bpy_rna_callback.h
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|  *  \ingroup pythonintern
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|  */
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| 
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| 
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| struct BPy_StructRNA;
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| struct PyObject;
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| 
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| #if 0
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| PyObject *pyrna_callback_add(BPy_StructRNA *self, PyObject *args);
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| PyObject *pyrna_callback_remove(BPy_StructRNA *self, PyObject *args);
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| #endif
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| 
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| PyObject *pyrna_callback_classmethod_add(PyObject *cls, PyObject *args);
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| PyObject *pyrna_callback_classmethod_remove(PyObject *cls, PyObject *args);
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