Dynapro Technologies Dynapro ET TCS, Application Developer'S Manual

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The Setup Screen and its subscreens are displayed using the white foreground and blue
background whenever the Setup Screen is entered. The numeric values shown in the above table
indicate the colors last set by the Set Character Attributes Command for the screen that was
displayed before entering the Setup Screen.
While in the Setup screen, if either the foreground or background color is selected, the Setup
Screen immediately displays in the foreground and background colors that match the numeric
values in the parameter list but the numeric value does not change. After the initial selection of
colors, any subsequent selection of colors will change the numeric value and be displayed
immediately.
If the foreground and background are set to the same color, the selected numeric values are
shown in the parameter list but the Setup Screen and its subscreens are displayed in default
colors to ensure setup information is always visible.
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The Screen Background Mode can be controlled locally with the Background parameter on the
Setup Screen and remotely by the control string from the host. Changes in the Screen
Background Mode take effect immediately.
Assuming the reverse-video attribute is not in effect for any given character, the Screen
Background Mode has the following effect on foreground and background colors:
•
When Screen Background Mode is reset (normal), each character’s foreground is displayed
in the selected foreground color and the background in the selected background color.
•
When Screen Background Mode is set (reverse), each character’s foreground is displayed in
the selected background color and the background in the selected foreground color.
NOTE
Characters with the reverse-video attribute selected are displayed with a foreground/background color
relationship opposite to that described above. For details, see Set Character Attributes Command in
Section 5.
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Several of the Setup parameters that can be controlled locally by the user from within the Setup
Screen can also be programmed by the host with remote commands. (See Table 4-2.) Therefore,
conflict between the actions of the user and the host can occur. Conflicts are resolved as follows:
1. Both the user and the host can change local/remote Setup parameters with equal priority. The
value of a Setup parameter remains unchanged until the value is changed by either the user or
host. (A value will also change if the TCS is turned off before a previous change is saved.)
2. Where the host must have absolute control over the configuration of the TCS, the Setup
Lockout Mode should be set. This prevents the user from entering the Setup Screen and
changing the configuration of the TCS in any way, yet still allows the user to enter
information through the touch panel and optional keyboard. (To set the Setup Lockout Mode,
see Setup Lockout Mode Command, later in this chapter.)