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SWAGA_C
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CURSOR.SWG
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0025_Hiding Cursor ....pas
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Pascal/Delphi Source File
|
1995-03-03
|
938b
|
41 lines
{
To change the cursor do the following:
set ah=1
set up ch as follows
bit 7 = 0
bits 6,5 = cursor blink :
00 = normal
01 = invisible
10 = erratic
11 = slow
* On EGA/VGA, anything other than 00 = invisible
bits 0-4 = top scan line for cursor
setup cl as follows:
bits 0-4 = bottom scan line
call int $10
A normal underline cursor starts at scan line 6 and ends at line 7, so for
that:
}
procedure underline_cursor; assembler;
asm
mov ah,1 {Set ah=1}
mov ch,6 {Set ch=6}
mov cl,7 {Set cl=7}
int 10h {Call int $10}
end;
For an invisible cursor simply set the 5th bit of ch:
procedure cursor_off; assembler;
asm
mov ah,1 {Set ah=1}
mov ch,26h {Set ch=$26 or 00100110 in binary}
mov cl,7 {Set cl=7}
int 10h {Call int $10}
end;