display-multi — Duplicate visual operations onto multiple visuals
display-multi : {target-spec:...}
Duplicates all drawing operations onto multiple `child' targets, thus producing identical output on multiple visuals.
The argument to display-multi is a colon- (`:') separated list of target specs to draw on. Because target specs can (and often do) contain colons, they need to be enclosed in parentheses.
DirectBuffer never supported. |
Unaccelerated. |