Page History
...
To ensure the maximum efficiency of a program that uses POP_UP commands, and to stop any screen "flickering", force LANSA to use DFRWRT(*YES) in the associated IBM i display file by using either of the following declarative commands in the RDML program: FUNCTION OPTIONS
FUNCTION OPTIONS(*DEFERWRITE)
...
OPEN FILE(*ALL)
...
USE_OPTION(*ONDEMAND)
The significance of the DFRWRT(*YES) option on display files is discussed more fully in the section of this guide on performance considerations.