screenAlpha()
Set screen alpha value.
Syntax:
screenAlpha(
screen
,
alpha
)
alpha value range from 0 = transparent to 255 = opaque.
Example:
circle(320,240,200)
screenopen(1,640,280,0,200,640,280,0)
screenopen(1,640,280,0,200,640,280,0)
screenAlpha(1,0)
circle(200,200,200):
circle(400,400,200)
for n = 0 to 255
screenAlpha( 1,n )
waitVBL
next
Example:
screenalpha.sdlbas