How Graphics Function Is Distributed In The System - IBM 3270 G Manual

How Graphics Function Is Distributed in the System
HOST
WORKSTATION
Mouse
Figure 27 shows the way in which graphics function is distributed between
GDDM, application programs in the host, the 3270-PC Graphics Control
Program, and local PC application programs.
Host application programs that use GDDM
Initialize
input
device
GDDM
I
I
I
I
I
I
I
I
I
Input
device
support
Echo
Create or
update
picture
Transform
Oip
Build data stream
Segment
store
Transform
Oip
Graphics Procedure Interface (GPI)
PC DOS
application
programs
Display
Figure 27. Distribution of Graphics Function
Chapter 4. The Graphics Control Program
43