setAlphachannel()
Activates or deactivates the alpha channel present in images. If
you are using images featuring alpha channel, activating alpha channel
you will get smoother border around pictures. Deactivating alpha
channel your pictures back to be jigsawed. setAlpachannel is enable by
default except the screen is set to full-screen, mode 0 under Windows
operative system.
Syntax:
setAlphachannel( bolean
)
bolean activate or deactivate alpha channel. Possible values are:
0 = false (alpha channel disabled)
1 = true (alpha channel enabled)
Example:
setAlphachannel( 1 )