D.6.3 Arguments |
 |
chan
| OpenVMS usage: | channel |
| type: | word (unsigned) |
| access: | read only |
| mechanism: | by value |
Number of the I/O channel assigned to the pseudoterminal.
This channel is only intended to be used for PTD$XXX operations.
astadr
| OpenVMS usage: | ast_procedure |
| type: | procedure value |
| access: | call without stack unwinding |
| mechanism: | by reference |
Address of the notification AST service routine,
or zero if the AST is to be canceled.
astprm
| OpenVMS usage: | user_arg |
| type: | longword (unsigned) |
| access: | read only |
| mechanism: | by value |
AST parameter to be passed to the AST service
routine specified by the astadr argument.
acmode
| OpenVMS usage: | access_mode |
| type: | longword (unsigned) |
| access: | read only |
| mechanism: | by value |
Access mode for which the AST is to be declared.
The most privileged access mode is the access mode of the caller.
The resulting mode is the access mode at which the AST is declared.
type
| OpenVMS usage: | type_longword |
| type: | longword (unsigned) |
| access: | read only |
| mechanism: | by value |
Value that indicates which notification AST to
enable. The $PTDDEF macro defines the symbolic names listed in Table D-2.
Table D-2 Symbolic Names Defined by $PTDDEF Macro
| Symbolic Name | Description |
|---|
PTD$C_SEND_XON | Deliver notification
AST when the pseudoterminal is ready to accept input. This AST is
not delivered if the pseudoterminal is set to NO HOSTSYNC. |
PTD$C_SEND_BELL | Deliver notification
AST when the pseudoterminal wants to stop input and signal it with
a bell character. |
PTD$C_SEND_XOFF | Deliver notification
AST when the pseudoterminal wants to stop input and signal it with
a DC3 character. |
PTD$C_STOP_OUTPUT | Deliver notification
AST when the pseudoterminal is stopping output. |
PTD$C_RESUME_OUTPUT | Deliver notification
AST when the pseudoterminal is resuming output. |
PTD$C_CHAR_CHANGED | Deliver notification
AST when the pseudoterminal has changed some device characteristic. |
PTD$C_ABORT_OUTPUT | Deliver notification
AST when the pseudoterminal wants to abort output. |
PTD$C_START_READ | Deliver notification
AST when the pseudoterminal is starting an application's read
request. This AST is delivered only if read event notification has
been enabled. |
PTD$C_MIDDLE_READ | Deliver notification
AST when the pseudoterminal has finished sending an application's
read request prompt string. This AST is delivered only if read event
notification has been enabled. |
PTD$C_END_READ | Deliver notification
AST when the pseudoterminal has finished an application's read
request. This AST is delivered only if read event notification has
been enabled. |
PTD$C_ENABLE_READ | Enable terminal read
event AST delivery. If this code is used, you cannot supply the astadr argument. |
PTD$C_DISABLE_READ | Disable terminal read event AST
delivery. If this code is used, you cannot supply the astadr argument. |
