用于TC下面的键码预定义。（适用于处理键盘的程序）
我们在这里定义了大部分按键的扫描码，这些扫描码可以方便的转换为ascii码，同时，也可以查询到控制键状态，例如ctrl和shift按键是否按下的状态等。可以把下面的内容保存为一个头文件，例如KEYS.H，放到INCLUDE文件夹下面：--------------------------分割线：KEYS.H ---------------------------------------------------------
/********************************/
/* Desc: 键码 */
/* By: hoodlum1980 */
/* Email: jinfd@ */
/* Date: 2008.02.25 */
/* Note: 需要bios.h */
/********************************/
/*Scan Codes Define*/
enum KEYS
{
K_ESC =0x011b,
K_F1 =0x3b00,
K_F2 =0x3c00,
K_F3 =0x3d00,
K_F4 =0x3e00,
K_F5 =0x3f00,
K_F6 =0x4000,
K_F7 =0x4100,
K_F8 =0x4200,
K_F9 =0x4300,
K_F10 =0x4400,
/*主键盘区*/
K_TILDE =0x2960, /* ~ */
K_D1 =0x0231, /* Number 1 */
K_D2 =0x0332,
K_D3 =0x0433,
K_D4 =0x0534,
K_D5 =0x0635,
K_D6 =0x0736,
K_D7 =0x0837,
K_D8 =0x0938,
K_D9 =0x0a39,
K_D0 =0x0b30,
K_SUB =0x0c2d, /* - */
K_EQU =0x0d3d, /* = */
K_BACKSLASH =0x2b5c, /* \ */
K_BACK =0x0e08, /* Backspace */
K_TAB =0x0f09,
K_Q =0x1071,
K_W =0x1177,
K_E =0x1265,
K_R =0x1372,
K_T =0x1474,
K_Y =0x1579,
K_U =0x1675,
K_I =0x1769,
K_O =0x186f,
K_P =0x1970,
K_LBRACKET =0x1a5b, /* [ */
K_RBRACKET =0x1b5d, /* ] */
K_A =0x1e61,
K_S =0x1f73,
K_D =0x2064,
K_F =0x2166,
K_G =0x2267,
K_H =0x2368,
K_J =0x246a,
K_K =0x256b,
K_L =0x266c,
K_SEMICOLON =0x273b,
K_QUOT =0x2827, /* ' */
K_RETURN =0x1c0d, /* Enter */
K_Z =0x2c7a,
K_X =0x2d78,
K_C =0x2e63,
K_V =0x2f76,
K_B =0x3062,
K_N =0x316e,
K_M =0x326d,
K_COMMA =0x332c, /* , */
K_DOT =0x342e, /* . */
K_DIVIDE =0x352f, /* / */
K_SPACE =0x3920,
/*右边数字键盘*/
K_INSERT =0x5200,
K_HOME =0x4700,
K_PAGEUP =0x4900,
K_DEL =0x5300,
K_END =0x4f00,
K_PAGEDOWN =0x5100,
K_UP =0x4800, /* upward arrow */
K_LEFT =0x4b00,
K_DOWN =0x5000,
K_RIGHT =0x4d00,
K_NUMPADMUL =0x372a, /* * */
K_NUMPADSUB =0x4a2d, /* - of numberpad */
K_NUMPAD7 =0x4737,
K_NUMPAD8 =0x4838,
K_NUMPAD9 =0x4939,
K_NUMPAD4 =0x4b34,
K_NUMPAD5 =0x4c35,
K_NUMPAD6 =0x4d36,
K_NUMPADADD =0x4e2b, /* + */
K_NUMPAD1 =0x4f31,
K_NUMPAD2 =0x5032,
K_NUMPAD3 =0x5133,
K_NUMPAD0 =0x5230,
K_NUMPADDEL =0x532e
};
/*Control Keys Flags*/
typedef struct _tagCTLKEYS
{
int rShift;
int lShift;
int Ctrl;
int Alt;
int ScrollLock;
int NumLock;
int CapsLock;
int Insert;
} CTLKEYS;
int GetKeyCode(void);
int GetKeyCodeEx(CTLKEYS *ck);
/*Get Key Code */
int GetKeyCode(void)
{
int key=0;
if(bioskey(1))
{
key=bioskey(0);
}
return key;
}
/*Get Key Code and CtrlKey Flags*/
int GetKeyCodeEx(CTLKEYS *ck)
{
int flags,key=0;
if(bioskey(1))
{
key=bioskey(0);
flags=bioskey(2);
if(ck!=NULL)
{
ck->rShift = flags&0x01;
ck->lShift = flags&0x02;
ck->Ctrl = flags&0x04;
ck->Alt = flags&0x08;
ck->ScrollLock = flags&0x10;
ck->NumLock = flags&0x20;
ck->CapsLock = flags&0x40;
ck->Insert = flags&0x80;
}
}
return key;
}
--------------------------------分割线：文件结束------------------------------------------------
上面的代码用法非常简单，但是需要手工包含以下头文件，bios.h,因为用到了里面的bioskey函数。
可以用GetKeyCode()获得扫描码scanCode，低8位字节（scanCode & 0xff)就是ascii码。
例如，我们可以用下面的程序测试按键：按Escapte键退出程序：
#include <stdio.h>
#include <bios.h>
#include <dos.h>
#include <keys.h>
void main()
{
int key=0,loops=0;
char c;
CTLKEYS ck; /* control key flags struct */
printf("\nPress Esc to Escape! Press other key to display Info.\n");
while(key!=K_ESC && ++loops<100)
{
/* wait until a key pressed */
while(!(key=GetKeyCodeEx(&ck)))
{
}
c=key&0xff; /* get ASCII code */
switch(key)
{
case K_TAB:
printf("pressed Tab,");
break;
case K_BACK:
printf("pressed Backspace,");
break;
case K_RETURN:
printf("pressed Enter,");
break;
case K_F1:
printf("pressed F1,");
break;
default:
printf("Pressed %c,",c); /* printf the char */
break;
}
if(ck.Ctrl)
printf(" Ctrl,");
if(ck.lShift)
printf(" LeftShift,");
if(ck.rShift)
printf(" RightShift");
if(ck.ScrollLock)
printf(" ScrollLock On,");
if(ck.NumLock)
printf(" NumlLock On,");
if(ck.CapsLock)
printf(" CapsLock On,");
printf("\n");
}
}
[[it] 本帖最后由 hoodlum1980 于 2008-2-25 14:32 编辑 [/it]]
