LXE 1280, Reference Manual

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138 Form Messages
LDS Plus Reference Guide E-SW-LDSPLUSRG-G
Deleting and Recalling Forms in Buffers
The operator can recall a form from the form buffer into the compose buffer, where it is visible if
the compose buffer has the focus.
The host can use certain expanded functions to recall a form from the DOS terminal’s form buffer.
The compose buffer is a conceptual buffer that holds form messages and user input.
Deleting a Form from the Form Buffer
The host application deletes forms from the form buffer in the DOS terminal.
The host application can send a form message with any character other than the right square
bracket ] or the number symbol # in the third text position to delete a form from the form buffer.
The following message is an example of one that deletes a form from the form buffer:
X occupies the position of the third
character in the form, which deletes
the form from the terminal’s form
buffer.
<02SaAB] X C
R
L
F
Figure 4-32 Example of Host Deletion
Recalling a Form from the Form Buffer
Once the host transmits a form or the DOS terminal accesses a stored form, a copy of the form
remains in the form buffer. The form can be copied from the form buffer to the compose buffer
where the operator can enter data. This is known as a
form recall .
Rule: The form remains in the form buffer until the host performs some action
to cause the contents of the form buffer to change.
Operator Recalls Form from Buffer
The operator may at any time recall a form from the form buffer by pressing the [ALT] [1] key
sequence. If there is currently no form in the form buffer, this action will have no effect.
Host Recalls Form from Buffer
The host application can recall any form in the form buffer with Expanded Function G, g, P, p.
See Chapter 5, “Expanded Functions”.