KC> Can anyone direct me to a good set of docs on programming the
 KC> keyboard under DOS? I was hoping to avoid using the Bios functions and
 KC> write my own handler, but it seems that in intermixing C code with the
 KC> handler I have it fails to work.
You could look at the PCGPE - PC Game Programmers Encyclopedia which got
some stuff on this.
And maybe this will help
#include 
#include 
const int KEYINTR = 0x09;
const int KEYPORT = 0x60;
class ISR
{
public:
    ISR(int IntrNr,void interrupt (*MyHandler)(...))
    {
        Intr       = IntrNr;
        Handler    = MyHandler;
        OldHandler = getvect(Intr);
        Init();
    }
    ~ISR()
    {
        Reset();
    }
    void Init() {setvect(Intr,Handler);}
    void Reset(){setvect(Intr,OldHandler);}
    int  InterruptNo(){return Intr;}
    int  IsSet(){return Handler==getvect(Intr) ? 1 : 0;}
  // returns 1 if interrupt is set
protected:
    int  Intr;
    void interrupt (*OldHandler)(...);
    void interrupt (*Handler)(...);
};
char Key;
void interrupt MyHandler(...)
{
    Key = inportb(KEYPORT);  // get key scancode at keyboard port (0x60)
    cout << "Scancode : 0x" << hex << (int)Key;
    if(Key==0xE0)cout << " Next Key is an extended key" << endl;
    else
    {
        cout << " Key : 0x" << (int)(Key&0x7F);
        if((Key&0x80)==0)cout << " key pressed " << endl; // bit 7 = 0
        else             cout << " key released " << endl; // bit 7 = 1
    }
    outportb(0x20,0x20); // acknowledge the interrupt
}
int main()
{
    ISR KeyboardHandler(KEYINTR,MyHandler);
  // set up interrupt handler "MyHandler" at interrupt "KEYINTR" (0x09)
  // the interrupt is set back to the original handler when KeyboardHandler
  // is destroyed
    while(Key!=0x81);  // Esc released = 0x81
    return 0;
}
Niels...
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