Is there a list or something available which shows the code of the Symbols of Blender I'm modifying an Blender addon for my own purpose. Enhancing the usability of my SpacemousePro (If someone would like to have it, no problem).

So I build pie menus for the key of my device. To make it even better I would like to use the inbuild symbols of Blender, but from some like those for the 3D manupulator I don't know how to get the name of the symbols to embed them in my (and some one elses) code.
The Icon Viewer does exactly what you need. It displays all internal icons in the tool shelf of the text editor. Click on an icon to copy the name.