| IO | Parameter | Type | Description
|
| in | theCADArea | longint | Area ID
|
| out | theZoomMethod | integer | A zoom method constant
|
| out | theFreeZoomInFactor | real |
|
| out | theFreeZoomOutFactor | real |
|
| out | theAutoZoomFlag | integer | A boolean constant
|
| out | function result | OSErr | Error result code, also see Error handling
|