Is it possible to integrate some blender’s GUI widgets inside a game engine application (during the program execution, not inside the blender’s interface) ? For example, during the execution, I would like to have my 3D view at right and a toolbar at left. I have found some external librairies like “bgui” https://github.com/Moguri/bgui but I would like to add some complex widgets already developed the blender GUI (tree view, timeline…).
In other words, is it possible to split the game engine main window to have a 3d view and a 2d render ? Or I must simulate 2d GUI with 3d planes, and create this user interface “by hand” ?