Inside Macintosh: Mac OS 8 Toolbox Reference /

Chapter 3 - Window Manager Reference / Window Manager Functions

Setting and Getting Window Characteristics /

GetAuxWin

NOT RECOMMENDED WITH THE APPEARANCE MANAGER

When the Appearance Manager is available and you are using standard windows, most of the fields of the auxiliary window structure are ignored and the GetAuxWin function is not recommended. In the future, standard system windows may not have entries in the auxiliary window list. If you are creating your own window definition function, GetAuxWin can still be used.