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CURSOR.SWG
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0012_GoToXY Replacment.pas
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Pascal/Delphi Source File
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1993-08-27
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3KB
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79 lines
{BRIAN DHATT
> Does anyone have codes/source For replacing GotoXY Procedure?
}
Asm
MOV AH,$0F {To get active page, returns BH}
INT $10
MOV Page,BH
end;
Asm {to find current cursor pos in form XX,YY}
MOV AH,$3 {Equiv of XX:=WhereX, YY:=WhereY }
MOV BH,Page
INT $10
MOV YY,DH
MOV XX,DL
end;
Asm {This block moves the cursor to }
MOV AH,$02 {XX,YY just like GotoXY(XX,YY) }
MOV BH,Page
MOV DL,XX
MOV DH,YY
INT $10
end;
{
GREG ESTABROOKS
>Can someone tell me how to make the cursor in Turbo Pascal disappear and
>appear?
}
Program CursorDemo; (* May 27/93, Greg Estabrooks *)
Uses
Crt; (* For ReadKey, ClrScr. *)
Const
(* Define Cursor Value to make chaning cursor easier *)
NoCursor = $2000;
DefaultCursor = $0607;
BlockCursor = $000A;
Var
Curs : Word; (* Stores saved cursor value *)
Ch : Char;
Procedure SetCursor(Cursor : Word); Assembler;
(* Routine to change the shape of the cursor *)
Asm
Mov AH,1 (* Function to change cursor shape *)
Mov BH,0 (* Set Page to 0 *)
Mov CX,Cursor (* Load new cursor Shape Value *)
Int $10 (* Call Dos *)
end;{SetCursor}
Function GetCursor : Word; Assembler;
(* Routine to return Cursor Shape *)
Asm
Mov AH,3 (* Function to return cursor shape *)
Mov BH,0 (* Set Page to 0 *)
Int $10 (* Call Dos *)
Mov AX,CX (* Move Result to proper register *)
end;{GetCursor}
begin
ClrScr; (* Clear the screen For demonstration*)
Curs := GetCursor; (* Save Current Cursor Value *)
Writeln('The Cursor is turned off');
SetCursor( NoCursor ); (* Turn off the cursor *)
Ch := ReadKey; (* Pause to show user new cursor *)
Writeln('The Cursor is a block shape');
SetCursor( BlockCursor ); (* Set the cursor to a block *)
Ch := ReadKey;
Writeln('The Cursor is now the normal shape');
SetCursor( DefaultCursor ); (* Set Default Cursor *)
Ch := ReadKey;
SetCursor( Curs ); (* Restore cursor to previous style *)
end.