blank.txt

来自「dos 1.0 其中包含quick basic源代码、内存管理himem emm」· 文本 代码 · 共 42 行

SUMMARY  Blank a region of the screen

#include <tools.h>

; blank (x1, y1, x2, y2, a) blanks a region of the screen


ifdef  OS2
cProc	blank,<PUBLIC>
parmW	x1
parmW	y1
parmW	x2
parmW	y2
parmB	a
localW	cell
else
cProc	blank,<PUBLIC>,<si,di>
parmB	x1
parmB	y1
parmB	x2
parmB	y2
parmB	a


DESCRIPTION

the x and y coordinate values are character columns and rows

RETURN VALUE

IMPLEMENTATION

SEE ALSO   

NOTE

EXAMPLE