U

UI hierarchy windows

defined, 203

DoDefaultActions method, 206

enumerating projects, 204

extensibility objects, calling, 207

finding nodes in, 205

GetItem method, 205

Select methods, 206-207

SelectedItems property, 206

top-level node, finding, 204

UIHierarchy object, 203-206

UIHierarchyItem object, 207

UIHierarchyItems object, 203-206

undo context units, 256-257

Undo method of Document, 249

undoing changes, 249, 256-259

UNDONE comment tokens, 218

unique names of projects, 155

unmodeled projects, 180-181

upgrades, Any CPU platform, 190

URL, for companion web site, xviii

user controls

programmable objects on, 231

windows creation with CreateToolWindow2 method, 230-231

user interface, programming. See windows

user interface hierarchy windows. See UI hierarchy windows

user option files, project, 29

utility projects

Miscellaneous Files projects, 176-177

purpose of, 176

solution folders, 177-180