Alternative to bioskey

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4 total messages Started by Derek Lavine Thu, 22 Oct 1998 00:00

#8074

Author: Derek Lavine
Date: Thu, 22 Oct 1998 00:00

13 lines
871 bytes

Hi all,

I need to use an alternative to bioskey() to read characters. I know I
can use getch() but this does not pick up

CTRL, INS, SHIFT, ALT, NUMLOCK etc.

Does anyone know what function I can use. If there is not a DOS
alternative is there a win32 API alternative

Thanks

Derek

Re: Alternative to bioskey

#8073

Author: Alexander Russell
Date: Wed, 21 Oct 1998 00:00

24 lines
1462 bytes

Under dos you can hook int9 (the keyboard hardware interrupt) for complete
control.
Under win32 the directX api has a number of different ways to get keyboard
data,
and there is also GetAsyncKeyState()

for a int9 example soo common.zip at
http://users.uniserve.com/~alexad3

Derek Lavine wrote in message <362EA84C.97C0DC8E@realware.com.au>...
>Hi all,
>
>I need to use an alternative to bioskey() to read characters. I know I
>can use getch() but this does not pick up
>
>CTRL, INS, SHIFT, ALT, NUMLOCK etc.
>
>Does anyone know what function I can use. If there is not a DOS
>alternative is there a win32 API alternative
>
>Thanks
>
>Derek
>

Re: Alternative to bioskey

#8075

Author: grafbobo
Date: Fri, 23 Oct 1998 00:00

71 lines
2933 bytes

In article <909033101.316451@neptune.uniserve.ca>,
  "Alexander Russell" <alexad3@uniserve.com> wrote:
> Under dos you can hook int9 (the keyboard hardware interrupt) for complete
> control.
> >
> >I need to use an alternative to bioskey() to read characters. I know I
> >can use getch() but this does not pick up
> >
> >CTRL, INS, SHIFT, ALT, NUMLOCK etc.
> >
> >Does anyone know what function I can use. If there is not a DOS
> >alternative is there a win32 API alternative
> >
Check The State Of The Keyboard State Registers $0040:$0017/8.

An Old Example (Sorry, In Pascal):


   Key_ShiftR    =   1;
   Key_ShiftL    =   2;
   Key_Ctrl      =   4;
   Key_Alt       =   8;
   Key_Scroll    =  16;
   Key_Num       =  32;
   Key_Caps      =  64;
   Key_Insert    = 128;

   Keyp_CtrlL    =   1*256;
   Keyp_AltL     =   2*256;
   Keyp_CtrlR    =   4*256;
   Keyp_AltR     =   8*256;
   Keyp_Scrll    =  16*256;
   Keyp_NumL     =  32*256;
   Keyp_CapsL    =  64*256;
   Keyp_SysReq   = 128*256;

 clrscr;
 repeat
   REPEAT
   UNTIL (MEM[$0040:$0017]>0) OR (MEM[$0040:$0018]>0);

   gotoxy(2,wherey);
   write(MEM[$0040:$0017] AND 128 DIV 128:4);
   write(MEM[$0040:$0017] AND  64 DIV  64:4);
   write(MEM[$0040:$0017] AND  32 DIV  32:4);
   write(MEM[$0040:$0017] AND  16 DIV  16:4);
   write(MEM[$0040:$0017] AND   8 DIV   8:4);
   write(MEM[$0040:$0017] AND   4 DIV   4:4);
   write(MEM[$0040:$0017] AND   2 DIV   2:4);
   write(MEM[$0040:$0017] AND   1 DIV   1:4);

   gotoxy(42,wherey);
   write(MEM[$0040:$0018] AND 128 DIV 128:4);
   write(MEM[$0040:$0018] AND  64 DIV  64:4);
   write(MEM[$0040:$0018] AND  32 DIV  32:4);
   write(MEM[$0040:$0018] AND  16 DIV  16:4);
   write(MEM[$0040:$0018] AND   8 DIV   8:4);
   write(MEM[$0040:$0018] AND   4 DIV   4:4);
   write(MEM[$0040:$0018] AND   2 DIV   2:4);
   write(MEM[$0040:$0018] AND   1 DIV   1:4);

   writeln;

   if keypressed then c:=readkey;
 until MEM[$0040:$0017] =255; { 3 }


 Thomas.

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Re: Alternative to bioskey

#8076

Author: George Swan
Date: Sat, 24 Oct 1998 00:00

15 lines
1260 bytes

In article <362EA84C.97C0DC8E@realware.com.au>,
Derek Lavine  <derek@realware.com.au> wrote:
>Hi all,

>I need to use an alternative to bioskey() to read characters. I know I
>can use getch() but this does not pick up

>CTRL, INS, SHIFT, ALT, NUMLOCK etc.

You cross-posted this to Borland group, so presumably
you are using a Borland compiler.  The bioskey() in my
BC++ 3.1 does allow one to check the status of CTRL,
SHIFT, ALT, INSERT, NUMLOCK, CAPSLOCK etc.  If you
RTFM you will see you use a different argument to learn
about these keys.

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