If you like to use the data description specifications (DDS) window keywords, you may have already experienced the frustration of having screens inexplicably blank out when you try to present your DDS window.
If you call an external RPG program that displays a window over a previously displayed screen format, the screen displayed by the preceding program blank out before the window is displayed. This seems to defeat the purpose of using a window.
One solution to this problem is to add the dummy format like the one shown in 3 to the display file that contains the window. The dummy format does not need to be utilized anywhere, but it does seem to correct the problem.
One solution to this problem is to add the dummy format like the one shown in Figure 3 to the display file that contains the window. The dummy format does not need to be utilized anywhere, but it does seem to correct the problem.
As you make this correction, two questions will come to mind. First, why doesn't the compiler do this for me? Second, if this dummy format is necessary to make DDS windows function correctly, why didn't SDA put it in there for me?
Only the wizards at the IBM development lab know for sure, but it can sure make the rest of us wonder....
Disappearing DDS Window Screens
Figure 3 Dummy Format for DDS Window
*. 1 ...+... 2 ...+... 3 ...+... 4 ...+... 5 ...+... 6 ...+... 7 A R DUMMY ASSUME A 1 2' '
Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.
IT managers hoping to find new IBM i talent are discovering that the pool of experienced RPG programmers and operators or administrators with intimate knowledge of the operating system and the applications that run on it is small. This begs the question: How will you manage the platform that supports such a big part of your business? This guide offers strategies and software suggestions to help you plan IT staffing and resources and smooth the transition after your AS/400 talent retires. Read on to learn:
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