Result Codes

The most common result codes that the Mac OS 8.5 Window Manager returns are listed below.

`noErr`	0	No error
`errInvalidWindowPtr`	-5600	Invalid window pointer
`errUnsupportedWindowAttributesForClass`	-5601	Attribute bits are inappropriate for the specified window class
`errWindowDoesNotHaveProxy`	-5602	No proxy attached to window
`errInvalidWindowProperty`	-5603	`'appl'` creator code not allowed
`errWindowPropertyNotFound`	-5604	Specified property does not exist
`errUnrecognizedWindowClass`	-5605	Unknown window class
`errCorruptWindowDescription`	-5606	Incorrect size or version supplied in the `BasicWindowDescription` structure
`errUserWantsToDragWindow`	-5607	Entire window is being dragged, not proxy icon
`errWindowsAlreadyInitialized`	-5608	Called `InitFloatingWindows` twice, or called `InitWindows` and then `InitFloatingWindows`
`errFloatingWindowsNotInitialized`	-5609	Called `HideFloatingWindows` or `ShowFloatingWindows` without calling `InitFloatingWindows`