1995-1996
Spencer Kimball & Peter Mattis
Find the layer visible at the specified coordinates.
This procedure finds the layer which is visible at the specified coordinates. Layers which do not qualify are those whose extents do not pass within the specified coordinates, or which are transparent at the specified coordinates. This procedure will return -1 if no layer is found.
unknown
Type | Name | Description |
---|---|---|
PF_IMAGE | image | The image |
PF_INT | x | The x coordinate for the pick |
PF_INT | y | The y coordinate for the pick |
Type | Name | Description |
---|---|---|
PF_LAYER | layer | The layer found at the specified coordinates |