Dynapro Technologies Dynapro ET TCS, Руководство разработчика приложений

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The host can query the TCS for a wide range of status reports. The status reports allow the host
to read the contents and attributes of the TCS display, sense touch call closures, and verify that
the TCS is operating properly.
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The host can query the TCS for the following information:
•
The cursor position
•
The character under the cursor
•
The character attributes under the cursor
•
Touch cell closures (when the Polled Touch Mode is set)
•
Touch cell status (when the Polled Touch Mode is set)
•
The existence of a stored screen
•
The amount of screen memory remaining
•
TCS type
•
Operational status
•
The type of error, if any
•
Power-loss history
•
Self-test results
Table 3-4 summarizes the commands the host can send to query the status of the TCS. Table 3-4
also shows the status reports sent by the TCS in response to the host’s queries.
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The commands that query the status of the TCS (and the responses of the TCS) are of two types:
•
ANSI-specified commands, which have the form:
<ESC>[...n
•
ANSI-compatible TCS-private commands, which have the form:
<ESC>[>...n
The TCS responses to these commands follow the same format as the respective commands
except for the cursor position report, which has a terminator of R instead of n.
The Reporting Format command can be used to cause the TCS to append a common terminating
code to all TCS status responses. The Reporting Format command can also be used to specify
different introducer codes. (This command is described in detail in Chapter 4.)