BARIX Streaming Client Installation Guide download pdf (Page 43)

Only ASCII characters in the range 0x20-0x7F are allowed as printable characters.

The following backslash sequences are accepted in string constants: \000 (octal

character code), \\ (backslash), \" (quote), \n (new line).

The cursor position and other features are controlled by printing standard ANSI

escape sequences. Each control sequence starts with the “escape” character (ASCII

code 27, hexadecimal 0x1B) followed by the '[' character (left square bracket, ASCII

code 91, hexadecimal 0x5B). The following sequences are recognised:

ESC [ 2 J Display Clear

clears the display and moves cursor to the upper

left corner of the display (position 0,0)

ESC [ Pn A Cursor Up

Moves cursor up by the given specified of lines. If

the cursor is already at the top line ignores this

sequence.

ESC [ Pn B Cursor Down

Moves cursor down by the given specified of lines.

If the cursor is already at the bottom line ignores

this sequence.

ESC [ Pn C Cursor Forward

Moves cursor right by the given specified of lines.

If the cursor is already in the rightmost column

ignores this sequence.

ESC [ Pn D Cursor Backward

Moves cursor left by the given specified of lines.

If the cursor is already in the leftmost column

ignores this sequence.

ESC [ PL ; Pc H Cursor Postition

Moves the cursor to the specified position

(coordinates). If the position is not specified

moves the cursor to the upper left corner. If the

coordinates are out of the screen they are clipped

to the display size.

ESC [ PL ; Pc f Same as the previous sequence.

The following abbreviations are used:

Pn – stands for a decimal number

PL – stands for a line number, line 0 is the topmost line

Pc – stands for a column number, 0 is the leftmost column

Commands

An alphabetic list of all display commands follows:

A() - abort waiting

• aborts any waiting started with the W() command

• discards any unexecuted commands after the W() command (the stored context)

B(x) - clear block

• accepts an integer parameter

• clears x characters starting from the current cursor position and advances the

cursor position accordingly

C(n) - print character

• accepts an integer parameter

• prints the character with ASCII code n to the current cursor position

G(n) - goto function

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BARIX Streaming Client Installation Guide Page 43

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