| IO | Parameter | Type | Description
|
| in | theCADArea | longint | Area ID
|
| in | theOptionalView | integer | A view constant or 0
|
| out | theZoomLoX | real |
|
| out | theZoomLoY | real |
|
| out | theZoomHiX | real |
|
| out | theZoomHiY | real |
|
| out | theZoomUnitsPerPixel | real |
|
| out | theZoomFactor | real |
|
| out | theZoomMaxFactor | real |
|
| out | theZoomMinFactor | real |
|
| out | function result | OSErr | Error result code, also see Error handling
|