_WorkspaceAt
BRect workspaceFrame = _WorkspaceAt(index);
BRect rect = _WorkspaceAt(index);
BRect activeRect = _WorkspaceAt(Window()->Desktop()->CurrentWorkspace());
BRect rect = _WorkspaceAt(row * columns);
BRect rect = _WorkspaceAt(column);
BRect workspaceFrame = _WorkspaceAt(where, index);
_WorkspaceAt(where, index);
BRect workspaceFrame = _WorkspaceAt(where, index);
BRect _WorkspaceAt(int32 index);
BRect _WorkspaceAt(BPoint where, int32& index);