NAME

use_backbuffer -- specify usage of backbuffer for window

PROTOTYPE

unitptr use_backbuffer( char *pcWdw, int iMode, unitptr uHost)

ARGUMENTS

char *pcWdw
specifies window
int iMode
-2 = clear backbuffer -1 = copy frontbuffer to backbuffer 0 = leave backbuffer contents unchanged 1 = copy backbuffer contents to frontbuffer 2 = copy backbuffer contents to frontbuffer and clear
unitptr uHost
host unit

RETURN VALUE:

A pointer to the created unit or NULL in the case of an error.

INTERFACE OF CREATED UNIT:

X_in[0]: iMode value

EXECUTION OF CREATED UNIT:

Redirects subsequent drawing operations for the specified window into its backbuffer (which is installed, if not yet present).

CONTROL MODES:

None.

SEE ALSO:

use_frontbuffer

FILE

/local/homes/rhaschke/nst7/man/../o.linx86_64//../nstsrc/nst_draw.c