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2d 3d 64bit api c++ cegui controls cplusplus cross cross-platform crossplatform d3d development direct3d directx embedded engine entertainment framework game game_development gamedev gaming gl gles gui gui_framework interface irrlicht library linux lua mac macosx multi-platform multiplatform object_oriented objectoriented ogre ogre3d opengl osx platform portable programming pycegui python scriptable software_development toolkit ui unicode user widget widgets win32 win64 window windows xmlV
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