Do double or multiple buffering on an intuition screen in an intuition-cooperative way. The ScreenBuffer's BitMap will be installed on the specifies screen, if possible. After a signal from graphics.library, the previously installed BitMap will be available for re-use. Consult graphics.library/AllocDBufInfo() and graphics.library/ChangeVPBitMap() for further information.
INPUTS
screen
The screen this screenbuffer belongs to
screenbuffer
The screenbuffer obtained by AllocScreenBuffer()
RESULT
Non-zero if fuction succeeded, or zero if operation could not be performed, eg. if user selects menus or gadgets.