class PtTty PtTerminal { tty_buflen; // unsigned short (Pt_ARG_TTY_BUFLEN) tty_cmd; // string (Pt_ARG_TTY_CMD) tty_devsize; // PhPoint (Pt_ARG_TTY_DEVSIZE) tty_exit_status; // integer (Pt_ARG_TTY_EXIT_STATUS) tty_fd; // integer (Pt_ARG_TTY_FD) tty_fdset; // unsigned short (Pt_ARG_TTY_FDSET) tty_flags; // flag (Pt_ARG_TTY_FLAGS) tty_input; // string (Pt_ARG_TTY_INPUT) tty_mfd; // integer (Pt_ARG_TTY_MFD) tty_path; // string (Pt_ARG_TTY_PATH) tty_pid; // long (Pt_ARG_TTY_PID) tty_pri; // integer (Pt_ARG_TTY_PRI) tty_pseudo; // string (Pt_ARG_TTY_PSEUDO) }
This widget is a child of PtTerminal, but can be attached to a device, and has the capability of device I/O.
For detailed information, please refer to PtTty in the Photon documentation. |
A number specifying the length of a buffer for reading data from the device. Default is 1024.
A write-only string used to spawn a user's log-in shell on the device. Default is nil.
A PhPoint specifying the size (in rows and columns) of the current device, which may be different from the size of the widget. Default is:
{PhPoint (x . 0) (y . 0)}
A number specifying the exit status of a spawned process.
A number that specifies a file descriptor to which the widget gets attached. The default, -1, breaks the attachment, or indicates no attachment.
A number that acts as a bitmask to define file descriptors for new processes. The default, 7, makes available descriptors 0, 1, and 2.
This instance variable controls sizing and other characteristics, and may be a combination of zero or more of the following flags:
Constant | Description |
---|---|
Pt_TTY_TERMRESIZE | Sets the terminal widget size when the device size changes. |
Pt_TTY_DEVRESIZE | Resizes the device when the terminal size changes. |
Pt_TTY_DEVLIMIT | Resizes the device when its size changes beyond the size limits of the terminal. |
Pt_TTY_DEVFORCE | Resizes the device size to the terminal's size. |
Pt_TTY_SETENV | Set or modify environment variables. |
Pt_TTY_ARGV0 | Use the program name as argv[0]. |
Pt_TTY_BUF_PRIVATE | The widget is using an allocated buffer. |
A string comprising the input to be written.
The "master" file descriptor, which is a number equal to the tty_fd, or else to the file descriptor of the pty if tty_pseudo was used to open the device.
A string specifying a pathname for a reading and writing to a device. Default is nil.
A number specifying the process ID of the process spawned on the device. Default is 0.
A number specifying Photon pulse priority. Default is -1.
A string specifying the name of an unused pseudo-tty device to attach to. The default, nil, specifies that //0/dev be used. An empty string "" specifies that /dev be used.
The following callbacks are associated with this widget:
Callback | Description |
---|---|
Pt_CB_TTY_DEVSIZE | This callback is generated when a resize event is received, but before the terminal widget is resized. |
Pt_CB_TTY_OUTPUT | This callback is generated when output is received, before passing it on to the terminal widget. |
Pt_CB_TTY_TERMINATED | This callback is generated when a child process (terminal) has been terminated. |
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