Category : Files from Magazines
Archive   : PJ73.ZIP
Filename : KEYBOARD.CLS

 
Output of file : KEYBOARD.CLS contained in archive : PJ73.ZIP
// keyboard.cls a Keyboard class for C++.
//
// this file implements a Keyboard class. it hides system details from
// the class user.
//
// (c) Aspen Scientific 1989. All Rights Reserved.
// Author: Vaughn Vernon

#ifndef __KEYBOARD_CLASS__

# define __KEYBOARD_CLASS__ 1

# define extMask 0x8000

// Keyboard class

class Keyboard {

protected:
int keyI; // saves latest input
public:
Keyboard() { keyI = -1; }
~Keyboard() { }

// methods

int input(int wait =1);
int value() { return keyI; }
int operator==(int keyComp) { return (keyI == keyComp); }
Keyboard & operator>>(int & k) { k = input(1); return *this; }
void flush() { while (input(0) != -1) ; }
};


// KeyTypes class

class KeyTypes {
public:
KeyTypes() { }
~KeyTypes() { }

// these methods are used to compare input to
int None() { return (-1); }
int Escape() { return 27; }
int SpaceBar() { return ' '; }
int Tab() { return '\t'; }
int BackTab() { return 15; }

int Printable(int key) {
return (key >= 32 && key <= 127);
}
int ASCII(int key) {
return (key >= 0 && key <= 255);
}
int Ctrl(char c) { return (c & 037); }

int Home() { return (71 | extMask); }
int End() { return (79 | extMask); }
int PgUp() { return (73 | extMask); }
int PgDn() { return (81 | extMask); }
int Left() { return (75 | extMask); }
int Right() { return (77 | extMask); }
int Up() { return (72 | extMask); }
int Down() { return (80 | extMask); }

int F1() { return (59 | extMask); }
int F2() { return (60 | extMask); }
int F3() { return (61 | extMask); }
int F4() { return (62 | extMask); }
int F5() { return (63 | extMask); }
int F6() { return (64 | extMask); }
int F7() { return (65 | extMask); }
int F8() { return (66 | extMask); }
int F9() { return (67 | extMask); }
int F10() { return (68 | extMask); }
};

#endif // __KEYBOARD_CLASS__


  3 Responses to “Category : Files from Magazines
Archive   : PJ73.ZIP
Filename : KEYBOARD.CLS

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