Linux程式设计入门 - termios/keymap/terminal progr
termios
inttcgetattr(intfd,structtermios*termios_p);
inttcsetattr(intfd,intoptional_actions,conststructtermios
*termios_p);
keymap
我写了一个小程式来专门处理Linux上的keymap，keymap.h及keymap.c。在LinuxTerminal上，如果您想要设定某些按键返回特定值，您会需要用到以下这些技巧。
设定keymap
#include＜linux/kd.h＞
#include＜linux/keyboard.h＞
voidsetkeymap(void)
{
structkbentryKEYMAP;
KEYMAP.kb_table=STATE;
KEYMAP.kb_index=SCANCODE;
KEYMAP.kb_value=VALUE;
ioctl(console,KDSKBENT,&KEYMAP);
}
STATE为状态键组合
/usr/include/linux/keyboard.h中
#defineKG_SHIFT0
#defineKG_CTRL2
#defineKG_ALT3
#defineKG_ALTGR1
#defineKG_SHIFTL4
#defineKG_SHIFTR5
#defineKG_CTRLL6
#defineKG_CTRLR7
#defineKG_CAPSSHIFT8
使用方式如:
#defineKST_CTRL(1＜＜KG_CTRL)
#defineKST_ALT(1＜＜KG_ALT)
#defineKST_SHIFT(1＜＜KG_SHIFT)
#defineKST_CTRL_ALT(KST_CTRL|KST_ALT)
#defineKST_ALT_SHIFT(KST_ALT|KST_SHIFT)
SCANCODE为键盘扫描码
#defineSCAN_ESC0x01
#defineSCAN_10x02
#defineSCAN_20x03
#defineSCAN_30x04
#defineSCAN_40x05
#defineSCAN_50x06
#defineSCAN_60x07
#defineSCAN_70x08
#defineSCAN_80x09
#defineSCAN_90x0A
#defineSCAN_00x0B
#defineSCAN_MINUS0x0C
#defineSCAN_PLUS0x0D
#defineSCAN_BACK0x0E
#defineSCAN_TAB0x0F
#defineSCAN_Q0x10
#defineSCAN_W0x11
#defineSCAN_E0x12
#defineSCAN_R0x13
#defineSCAN_T0x14
#defineSCAN_Y0x15
#defineSCAN_U0x16
#defineSCAN_I0x17
#defineSCAN_O0x18
#defineSCAN_P0x19
#defineSCAN_LTQUOTE0x1A
#defineSCAN_RTQUOTE0x1B
#defineSCAN_ENTER0x1C
#defineSCAN_CTRL0x1D
#defineSCAN_A0x1E
#defineSCAN_S0x1F
#defineSCAN_D0x20
#defineSCAN_F0x21
#defineSCAN_G0x22
#defineSCAN_H0x23
#defineSCAN_J0x24
#defineSCAN_K0x25
#defineSCAN_L0x26
#defineSCAN_SPLIT0x27
#defineSCAN_QUOTE0x28
#defineSCAN_MARK0x29
#defineSCAN_LSHIFT0x2A
#defineSCAN_STAND0x2B
#defineSCAN_Z0x2C
#defineSCAN_X0x2D
#defineSCAN_C0x2E
#defineSCAN_V0x2F
#defineSCAN_B0x30
#defineSCAN_N0x31
#defineSCAN_M0x32
#defineSCAN_LSQUOTE0x33
#defineSCAN_RSQUOTE0x34
#defineSCAN_QUESTION0x35
#defineSCAN_RSHIFT0x36
#defineSCAN_PRTSCR0x37
#defineSCAN_ALT0x38
#defineSCAN_SPACE0x39
#defineSCAN_CAPSLOCK0x3A
#defineSCAN_F10x3B
#defineSCAN_F20x3C
#defineSCAN_F30x3D
#defineSCAN_F40x3E
#defineSCAN_F50x3F
#defineSCAN_F60x40
#defineSCAN_F70x41
#defineSCAN_F80x42
#defineSCAN_F90x43
#defineSCAN_F100x44
#defineSCAN_NUMLOCK0x45
#defineSCAN_HOME0x47
#defineSCAN_UP0x48
#defineSCAN_PGUP0x49
#defineSCAN_LEFT0x4B
#defineSCAN_RIGHT0x4D
#defineSCAN_END0x4F
#defineSCAN_DOWN0x50
#defineSCAN_PGDN0x51
#defineSCAN_INSERT0x52
#defineSCAN_DELETE0x53
#defineSCAN_F110x85
#defineSCAN_F120x86
/usr/include/linux/kd.h中
structkbentry{
unsignedcharkb_table;
unsignedcharkb_index;
unsignedshortkb_value;
};
#defineKDGKBENT0x4B46/*getsoneentryintranslation
table*/
#defineKDSKBENT0x4B47/*setsoneentryintranslation
table*/
而console为
console=open("/dev/console",O_RDWR);
读取按键
read(console,&c,sizeof(char));
terminalprogramming
term.h/term.c是我写来专门处理一些小型的互动界面程式。
Terminal指令集
设定颜色:\033〔colorm
其中color可以是以下的值
0:ResetColorAttributes
1:boldon
2:boldoff
4:underlineon
5:blinkon
7:reverseon
21/22:boldnormal
24:underlineoff
25:blinkoff
27:reverseoff
30:前景，黑色
31:前景，红色
32:前景，绿色
33:前景，黄色
34:前景，篮色
35:前景，紫色
36:前景，青色
37:前景，白色
40:背景，黑色
41:背景，红色
42:背景，绿色
43:背景，黄色
44:背景，篮色
45:背景，紫色
46:背景，青色
47:背景，白色
清除萤幕:\033c
设定水平游标位置:\033〔XG
X为水平游标位置。
设定垂直游标位置:\033〔Xd
Y为垂直游标位置。
\033〔YA
Current_Cursor_Y-=Y
\033〔YB或\033〔Ye
Current_Cursor_Y+=Y
\033〔XC或\033〔Xa
Current_Cursor_X+=X
\033〔XD
Current_Cursor_X-=X
\033〔YE
gotoxy(0,Current_Cursor_Y+Y)
\033〔YF
gotoxy(0,Current_Cursor_Y-Y)
\033〔Y;XH
gotoxy(X,Y);
\033〔0K:删除从游标到该行结尾
\033〔1K:删除从该行开始到游标处
\033〔2K:删除整行
\033〔0J:删除游标到萤幕结尾
\033〔1J:删除从萤幕开始到游标处
\033〔2J:删除整个萤幕
\033〔N@:insertNchar
\033〔P:deletechar
\033〔M:deleteline
\033〔L:insertline
\033〔s:savecursorposition
\033〔u:restorecursorposition
\033E:carry;linefeed
\033M:Current_Cursor_Y-1
\033D:linefeed
发布人:netbull 来自:Linux开发指南