620061
Category: video
Flags: partially documented function
INT 62 - FGDRIVER v4.02 - "FG_INSIDE" - CHECK IF POINT INSIDE CONVEX POLYGON
AX = 0061h
ES:BX -> vertex array
CX = number of vertices
DX = screen space column of point to test
SI = screen space row of point to test
Return: AX = result
0000h point is outside polygon
0001h point is inside polygon
undefined if not a convex polygon
Note: the FGDRIVER functions are rearranged with each major release, but
their parameters do not change (see #03474 at AX=0000h)
SeeAlso: AX=0092h,AX=0093h,AX=0094h