Most UI controls are either invoking operators or setting properties through RNA. You can usually see the name of an operator/property in the buttons tooltip. You can also run blender with the `-d' flag which will then spit out the operator name on stdout when you click something.
Sometimes setting a property will do more than update the value; you can check the RNA definitions in makesrna/intern/rna_* to see if it has functions associated with it. For operators, the Python name shown by the UI is a bit different from the name in the C source code, e.g. `bpy.ops.sculpt.brush_stroke' vs. `SCULPT_OT_brush_stroke', so be aware of that when grepping for definitions. So, to give example, if I wanted to see find the C function called when creating a cube, I'd run `blender -d', shift+AKEY to add the cube, which prints out `MESH_OT_primitive_cube_add' in the console. Then you can grep (or even quicker, TAGS file or equivalent) for `primitive_add_cube', which leads you to editmesh_add.c:1436. This shows the operator definition, and the actual functions called will be set in the operator's invoke/exec fields. There are probably more automated ways to go about this too, but hopefully that helps a bit. -Nicholas On Sat, Nov 5, 2011 at 6:42 PM, Rainer Hohne <raho...@googlemail.com> wrote: > Hi there, > > being quite new to debugging, I would be glad if you could explain to me > how to trace function calls from the GUI. Currently I can only see what > function blender is at when it crashes (using DDD on Ubuntu), but I need to > know which C function is being called for example if I click a certain > button in the GUI. > > So can someone please explain what I need to do to get such a "live" > backtrace of GUI interactions (if possible at all) - do I need a debug > build of python or something like that ? > > Rainer > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > http://lists.blender.org/mailman/listinfo/bf-committers > _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers
