Sends device controls to a terminal.

Sintaxe:

Condições: INVREQ

Descrição:

SEND CONTROL sends device controls to a terminal.
If the command is issued without any options, the width that is defined for the terminal is used as the default to format the output from the command.

For information about Basic Mapping Support (BMS), see the TXSeries for Multiplatforms Application Programming Guide.

Nota:

When the SEND CONTROL command is issued in conjunction with a SYNCPOINT command, the contents of the buffer are flushed to the terminal.

Opções:

ALARM
• Specifies that the alarm feature is to be activated.

CURSOR(data-value)
• Specifies, as a 16-bit binary value, the position to which the cursor is to be returned on completion of a SEND CONTROL command.
• The supplied value gives the cursor position relative to zero; the range of possible values depends on the size of the screen that is being used.
• The value that is specified in the CURSOR option must be positive.
• A negative value causes the cursor to be positioned at the upper left corner of the screen (that is, at position zero).

ERASE
• Specifies that the screen or printer buffer is to be erased and the cursor returned to the upper left corner of the screen.
• The first output operation in any transaction, or in a series of pseudoconversational transactions, should always specify ERASE.

ERASEAUP
• Specifies that all unprotected character locations on the whole screen are to be erased.

FORMFEED
• Specifies that a new page is required.

FREEKB
• Specifies that the keyboard is to be unlocked after the data is written.

FRSET
• Specifies that the Modified Data Tags (MDTs) of all fields that are currently in the terminal buffer are to be reset to the not-modified condition.
• If this option is omitted, MDTs that were turned on by a previous operation remain on until overwritten by a subsequent SEND command.

PRINT
• Specifies that a print operation is to be started at a printer.

Condições:

INVREQ
• Occurs for the following conditions, depending on the options that are specified on the SEND CONTROL command:
  • An attempt was made to issue a SEND CONTROL command from a remotely linked-to program.
  • A remotely linked-to program attempted to execute a SEND CONTROL command that refers to the principal facility.
• Default action: Terminates the task abnormally.

Informações relacionadas:

• SEND (terminal)
• SEND MAP
• TXSeries for Multiplatforms Application Programming Guide