__if_not_exists 444 third_party/wtl/include/atlapp.h __if_not_exists(_IMAGELIST::_IMAGELIST) { struct _IMAGELIST { }; } __if_not_exists 445 third_party/wtl/include/atlapp.h __if_not_exists(_TREEITEM::_TREEITEM) { struct _TREEITEM { }; } __if_not_exists 446 third_party/wtl/include/atlapp.h __if_not_exists(_PSP::_PSP) { struct _PSP { }; }