QBasic Future.lib mouse cursors

[Horatio11]

Hello I'm Horatio and I'm 11 years old.

I have got different cursors shapes to work in the FL in 8-BIT depth.

Code:

REM $INCLUDE: 'future.bi'
Set640x400 8
FOR i% = 0 TO 255
READ C%
C$ = C$ + CHR$(C%)
NEXT
Future.MouseShape SADD(C$), VARSEG(C$)

But I would like it to work in 15 or 16 BIT, I've tried

FOR i% = 0 TO 255
READ R%,G%,B%
C$ = C$ + CHR$(R%) + CHR$(G%) + CHR$(B%)
NEXT

but it only sees it as 2 values, not 3, RGB Thankyou for your time and help