I'm trying to create a quick c++ console application under WinXP and it appears that kbhit() doesn't respond to F1-F12 keypresses.   It returns TRUE for other keypresses, but not the Fns.   Is this the way it's supposed to work?

Thanks,  Jack.

jdave@att.net wrote:
> I'm trying to create a quick c++ console application under WinXP and it appears
> that kbhit() doesn't respond to F1-F12 keypresses.   It returns TRUE for other
> keypresses, but not the Fns.   Is this the way it's supposed to work?

I don't know how it is supposed to work, but it acts the same way here.

You can create your own:

#include <windows.h>

HANDLE StdIn = GetStdHandle(STD_INPUT_HANDLE);

bool KeyHit()
{
  DWORD NumEvents, NumEventsRead;
  INPUT_RECORD *InputRecord;
  DWORD i;
  GetNumberOfConsoleInputEvents(StdIn, &NumEvents);

  InputRecord = (INPUT_RECORD *)malloc(sizeof(INPUT_RECORD)*NumEvents);
  PeekConsoleInput(StdIn, InputRecord, NumEvents, &NumEventsRead);

  for(i = 0; i < NumEventsRead; i++)
  {
    if(InputRecord[i].EventType & KEY_EVENT && InputRecord[i].Event.KeyEvent.bKeyDown)
    {
      if(InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_CONTROL &&
         InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_MENU  &&
         InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_SHIFT)
      {
        free(InputRecord);
        return true;
      }
    }
  }
  free(InputRecord);
  return false;
}


int main()
{
   while(!KeyHit())
      ;
}

-- 
Absolutely not the best homepage on the net:
http://home20.inet.tele.dk/midgaard
But it's mine - Bertel

Bertel:   Thanks a million.   That's very helpful.   I appreciate you taking the time to educate me.     --Jack.



In article <dvcu14$26ji$1@digitaldaemon.com>, Bertel Brander says...
>
>jdave@att.net wrote:
>> I'm trying to create a quick c++ console application under WinXP and it appears that kbhit() doesn't respond to F1-F12 keypresses.   It returns TRUE for other keypresses, but not the Fns.   Is this the way it's supposed to work?
>
>I don't know how it is supposed to work, but it acts the same way here.
>
>You can create your own:
>
>#include <windows.h>
>
>HANDLE StdIn = GetStdHandle(STD_INPUT_HANDLE);
>
>bool KeyHit()
>{
>   DWORD NumEvents, NumEventsRead;
>   INPUT_RECORD *InputRecord;
>   DWORD i;
>   GetNumberOfConsoleInputEvents(StdIn, &NumEvents);
>
>   InputRecord = (INPUT_RECORD *)malloc(sizeof(INPUT_RECORD)*NumEvents);
>   PeekConsoleInput(StdIn, InputRecord, NumEvents, &NumEventsRead);
>
>   for(i = 0; i < NumEventsRead; i++)
>   {
>     if(InputRecord[i].EventType & KEY_EVENT &&
>InputRecord[i].Event.KeyEvent.bKeyDown)
>     {
>       if(InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_CONTROL &&
>          InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_MENU  &&
>          InputRecord[i].Event.KeyEvent.wVirtualKeyCode != VK_SHIFT)
>       {
>         free(InputRecord);
>         return true;
>       }
>     }
>   }
>   free(InputRecord);
>   return false;
>}
>
>
>int main()
>{
>    while(!KeyHit())
>       ;
>}
>
>-- 
>Absolutely not the best homepage on the net:
>http://home20.inet.tele.dk/midgaard
>But it's mine - Bertel

<jdave@att.net> wrote in message news:dvc9vt$148v$1@digitaldaemon.com...
> I'm trying to create a quick c++ console application under WinXP and it
> appears
> that kbhit() doesn't respond to F1-F12 keypresses.   It returns TRUE for
> other
> keypresses, but not the Fns.   Is this the way it's supposed to work?

You can download the source to microemacs from www.digitalmars.com, and see how it (successfully) handles the keyboard.