Esc D 0; Esc R; Esc B 0- Page 331

CHAPTER 7 IBM PROPRINTER - 13 

Set horizontal tabs 

EscD<n1><n2><n3>...NUL (27)(68)n1n2n3...(00)
 <1Bh><44h>n1n2n3...<00h> 



This command enables you to set up to 28 horizontal tab stops using the current character pitch. 



The tab stops should be set in ascending order. 



Esc D 0

 clears all horizontal tab settings. 



Esc R

 restores the default settings,  which are at every eighth column, starting at the ninth column. 



You can move the print position to the tab stops using the 

HT

 control code. 

LPRINT CHR$(27); CHR$(68); CHR$(10); CHR$(20); CHR$(0); 'Set tab stops 
at columns 10 and 20. 

Set vertical tabs 

EscB<n1><n2><n3> ...NUL 

(27)(66)n1n2n3...(00)

 <1Bh><42h>n1n2n3...<00h> 



This command enables you to set up to 64 vertical tab stops using the line feed pitch. 



The tab stops should be set in ascending order. 



Esc B 0

 and 

Esc R

 both clear all vertical tab settings. 



You can move the print position to the tab stops using the 

VT

 control code. 

LPRINT CHR$(27); CHR$(66); CHR$(12); CHR$(24); CHR$(0); 'Set tab stops 
at lines 12 and 24. 

Horizontal tab 

HT  

(09) 

<09h> 



The 

HT

 control code (ASCII 9) moves the current print position one tab stop to the right. 



The command is ignored if there are no tab stops to the right of the current print position or if the next 
tab stop is beyond the right margin. 

LPRINT CHR$(9); 

Vertical tab 

VT  

(11) 

<0Bh> 



The 

VT

 control code (ASCII 11) moves the current print position one vertical tab stop down the page. 



If there are no tab stops below the current print position a line feed is performed. 



If no tab stops have been set a line feed is performed. 

LPRINT CHR$(9); 

Restore default tab settings 

EscR  (27)(82) 

  <1Bh><52h> 



This command restores the default horizontal tab settings which are at every eight columns,  starting 
at the ninth column.  There are no default vertical tab settings. 

LPRINT CHR$(27);  CHR$(82); 'Restore default tab stops.