bos_on_screen |
|
|
|
|
bos_on_screen |
|
|
|
bos_on_screen |
|
|
|
|
bos_on_screen |
|
|
|
|
|
||
|
int bos_on_screen ( BOS_NODE *bos )
BOS_NODE *bos; // pointer to block, object or symbol
|
|
Synopsis |
#include "ssnodes.h"
The bos_on_screen function determines whether the indicated entity is visible and its extents overlap the boundary defined by the current window.
|
|
Parameters |
bos is a pointer to a SilverScreen entity, as obtainable by a call to get_bos.
|
|
Return Value |
bos_on_screen returns 1 if bos is visible and its extents overlap the current window, and 0 otherwise.
|
|
Comments |
A return value of 1 does not guarantee that bos is in the window (it may be concave); however, a return value of 0 does guarantee that no portion of bos may be seen in the window.
|
|
See Also |
|
