Argox PA-20 Basic Programming Manual Manual do Utilizador Página 64

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PT-Basic Programming Manual Ver. 1.00 63/143
3.12 LCD Commands
The following commands: CURSOR, CURSOR_X, CURSOR_Y, LOCATE,
FILL_RECT, PRINT, CLR_RECT, CLS, SHOW_IMAGE, CLR_EOL, will only
affect the current TextBlock on LCD screen. Parameters of these commands will
be based on TextBlock‟s size and position.
BACK_LIGHT_DURATION
Purpose
To specify how long the backlight will last once the terminal
is turned on.
Syntax
BACK_LIGHT_DURATION(N%)
Example
BACK_LIGHT_DURATION(20)
Description
N% is an integer variable indicating the LCD backlight timer
in the range from 0 to 65535. It is specified in units of 1-sec.
If N%=0, then LCD backlight will always be on.
LCD_CONTRAST
Purpose
To set the contrast level of the LCD.
Syntax
LCD_CONTRAST(N%)
Example
LCD_CONTRAST(5)
Description
N% is an integer variable indicating the LCD contrast level in
the range from 1 to 5. The higher value means higher
contrast.
CURSOR
Purpose
To turn on/off the cursor indication in the activated
TextBlock.
Syntax
CURSOR(status%)
Example
CURSOR(1)
Description
status% is an integer indicating the cursor on or off.
status%
0
1
CURSOR_X
Purpose
To get the x coordinate of the current cursor position in the
activated TextBlock.
Syntax
X% = CURSOR_X
Example
X% = CURSOR_X
Description
X% is an integer variable to be assigned to the X coordinate
of the current cursor position.
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