/* pckey.hpp 3-24-91 PC keyboard class for Borland C++ Copyright 1991 John W. Small All rights reserved Use freely but acknowledge authorship and copyright. CIS: 73757,2233 PSW / Power SoftWare P.O. Box 10072 McLean, Virginia 22102 8072 (703) 759-3838 */ #ifndef PCKEY_CPP #define PCKEY_CPP #include // Typematic Rate = 10 x characters per second enum TypeMaticRate { TMR300, TMR267, TMR240, TMR218, TMR200, TMR185, TMR171, TMR160, TMR150, TMR133, TMR120, TMR109, TMR100, TMR092, TMR086, TMR080, TMR075, TMR067, TMR060, TMR055, TMR050, TMR046, TMR043, TMR040, TMR037, TMR033, TMR030, TMR027, TMR025, TMR023, TMR021, TMR020 }; // Typematic Delay in milliseconds enum TypeMaticDelay { TMD250, TMD500, TMD750, TMD1000 }; // Do not instantiate! class PCKey { // Variables are static to save having to dereference // the "this" pointer in the inline member functions. static unsigned asciiScan; static unsigned char enhancedKeyBrd; static unsigned enhancedShiftMask; public: PCKey(); int enhanced() { return (int) enhancedKeyBrd; } int getch() { _AH = enhancedKeyBrd; geninterrupt(0x16); asciiScan = _AX; return (int) _AL; } // Ascii code of last character read with getch() // or character waiting with kbhit(). int ascii() { return (int)(asciiScan & 0x00FF); } // Scan code of last character read with gethch() // or character waiting with kbhit(). int scan() { return (int)((asciiScan &0xFF00) >> 8); } int kbhit() { _AH = 0x01 | enhancedKeyBrd; geninterrupt(0x16); asciiScan = _AX; return !(int)(_FLAGS & 0x0040); } unsigned shift() { _AH = 0x02 | enhancedKeyBrd; geninterrupt(0x16); return (_AX & enhancedShiftMask); } unsigned InsertStateActive() { return (shift() & 0x0080); } unsigned CapsLockActive() { return (shift() & 0x0040); } unsigned NumLockActive() { return (shift() & 0x0020); } unsigned ScrollLockActive() { return (shift() & 0x0010); } unsigned AltPressed() { return (shift() & 0x0008); } unsigned CtrlPressed() { return (shift() & 0x0004); } unsigned LeftShiftPressed() { return (shift() & 0x0002); } unsigned RightShiftPressed() { return (shift() & 0x0001); } unsigned ShiftPressed() { return (shift() & 0x0003); } unsigned SysReqPressed() { return (shift() & 0x8000); } unsigned CapsLockPressed() { return (shift() & 0x4000); } unsigned NumLockPressed() { return (shift() & 0x2000); } unsigned ScrollLockPressed() { return (shift() & 0x1000); } unsigned RightAltPressed() { return (shift() & 0x0800); } unsigned RightCtrlPressed() { return (shift() & 0x0400); } unsigned LeftAltPressed() { return (shift() & 0x0200); } unsigned LeftCtrlPressed() { return (shift() & 0x0100); } void setTypeMatic(enum TypeMaticRate TMrate, enum TypeMaticDelay TMdelay) { _BX = (TMdelay << 8) | TMrate; _AX = 0x0305; geninterrupt(0x16); } int putch(unsigned asciiScan) { _CX = asciiScan; _AH = 0x05; geninterrupt(0x16); return !((int) _AL); } void flush(); ~PCKey() {} }; extern PCKey PC; // Only instant, do not instantiate! // Note: Ctrl keys are not special! // Returned by getch() and ascii(). #define CtrlA 1 #define CtrlB 2 #define CtrlC 3 #define CtrlD 4 #define CtrlE 5 #define CtrlF 6 #define CtrlG 7 #define CtrlH 8 #define CtrlI 9 #define CtrlJ 10 #define CtrlK 11 #define CtrlL 12 #define CtrlM 13 #define CtrlN 14 #define CtrlO 15 #define CtrlP 16 #define CtrlQ 17 #define CtrlR 18 #define CtrlS 19 #define CtrlT 20 #define CtrlU 21 #define CtrlV 22 #define CtrlW 23 #define CtrlX 24 #define CtrlY 25 #define CtrlZ 26 // Special Key Codes returned via scan() when getch() == 0. #define AltA 30 #define AltB 48 #define AltC 46 #define AltD 32 #define AltE 18 #define AltF 33 #define AltG 34 #define AltH 35 #define AltI 23 #define AltJ 36 #define AltK 37 #define AltL 38 #define AltM 50 #define AltN 49 #define AltO 24 #define AltP 25 #define AltQ 16 #define AltR 19 #define AltS 31 #define AltT 20 #define AltU 22 #define AltV 47 #define AltW 17 #define AltX 45 #define AltY 21 #define AltZ 44 #define Home 71 #define UpArr 72 #define PgUp 73 #define LArr 75 #define RArr 77 #define EndKey 79 #define DnArr 80 #define PgDn 81 #define InsKey 82 #define DelKey 83 #define CtrlHome 119 #define CtrlPgUp 132 #define CtrlLArr 115 #define CtrlRArr 116 #define CtrlEnd 117 #define CtrlPgDn 118 #define Alt1 120 #define Alt2 121 #define Alt3 122 #define Alt4 123 #define Alt5 124 #define Alt6 125 #define Alt7 126 #define Alt8 127 #define Alt9 128 #define Alt0 129 #define AltHyphen 130 #define AltEquals 131 #define CtrlPrtSc 114 #define ShiftTab 15 #define F1 59 #define ShiftF1 84 #define CtrlF1 94 #define AltF1 104 #define F2 60 #define ShiftF2 85 #define CtrlF2 95 #define AltF2 105 #define F3 61 #define ShiftF3 86 #define CtrlF3 96 #define AltF3 106 #define F4 62 #define ShiftF4 87 #define CtrlF4 97 #define AltF4 107 #define F5 63 #define ShiftF5 88 #define CtrlF5 98 #define AltF5 108 #define F6 64 #define ShiftF6 89 #define CtrlF6 99 #define AltF6 109 #define F7 65 #define ShiftF7 90 #define CtrlF7 100 #define AltF7 110 #define F8 66 #define ShiftF8 91 #define CtrlF8 101 #define AltF8 111 #define F9 67 #define ShiftF9 92 #define CtrlF9 102 #define AltF9 112 #define F10 68 #define ShiftF10 93 #define CtrlF10 103 #define AltF10 113 // Some BIOS' don't return these. #define F11 133 #define ShiftF11 135 #define CtrlF11 137 #define AltF11 139 #define F12 134 #define ShiftF12 136 #define CtrlF12 138 #define AltF12 140 // Non special - standard character codes. #define ESC 27 #define CR 13 #define Tab 9 #define BackSp 8 #define Space 32 #define DelCh 127 // Returned by extended keys on 101/102 keyboards // that duplicate keys available on 84 key format. // Consider the home key ... // On number pad: PC.ascii() == 0 PC.scan() == 71 // By itself: PC.ascii() == 224 PC.scan() == 71 #define EntendKey 224 #endif