2 GP Reference Entries

pixblt

Function

Summary
: Copies one area of a graphics port to another area of a different graphics port.
Signature

pixblt to-port operation from-port to-x to-y width height from-x from-y &optional depth =>

Arguments

to-port: A graphics port
operation: A graphics state operation
from-port: A graphics port
to-x: An integer
to-y: An integer
width: An integer
height: An integer
from-x: An integer
from-y: An integer
depth: An integer

Description

Thepixblt function copies one area of from-port to another area of to-port using the specified operation and mask. Both ports should be the same depth. The depth argument is available only to further optimize performance. If it is supplied, it should give the depth in pixels of both ports. Its presence obviates another call toport-depth in order to find out the destination port depth. The graphics port transforms are not used.