Brian Stevens wrote: > I'm also fighting this design issue, so I'm following your questions > keenly. During a recent makeover of my own application, I've used > several sheet windows. In Classic the sheets don't stick to the parent > window and can be moved anywhere on the screen. While this behavior > doesn't cause any obvious failures, it clearly does not operate as a > sheet and defeats the reason for using one. The same sheet code in X, > of course, works just fine. Wish I could give you some feedback on > drawers, but I haven't used them yet. I'm using carbonlib 1.6 >> When, in terms of OS version, did drawers and sheets enter into the >> scheme of things? >> In other words, can an application that runs in pre OS 9.2 have sheet >> and drawers OR is it limited to OS-X and classic apps? >> tedd Apple says: kSheetWindowClass Available in CarbonLib 1.3 and later, and in Mac OS X; in CarbonLib, a sheet window is actually a movable-modal window, which blocks user interaction with all windows of the application. kSheetAlertWindowClass Available in CarbonLib 1.3 and later, and in Mac OS X 10.1 and later; in CarbonLib, a sheet alert window is actually a movable alert window, which blocks user interaction with all windows of the application. kDrawerWindowClass Available in Mac OS X 10.2 or later. Robert P.