按键编码的定义

解读键盘代码与ASCII映射

最新推荐文章于 2024-09-03 16:56:09 发布

原创最新推荐文章于 2024-09-03 16:56:09 发布 · 1.7k 阅读

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本文详细解析了键盘代码与对应的ASCII字符映射关系，包括数字键、字母键及特殊键位的具体编码，帮助开发者深入理解键盘输入的底层机制。

mark一下

//*	VK_0 - VK_9 are the same as ASCII '0' - '9' (0x30 - 0x39)
//*	0x40 : unassigned
//*	VK_A - VK_Z are the same as ASCII 'A' - 'Z' (0x41 - 0x5A)

//定义数据字符0~9
#define   VK_0         0x30 
#define   VK_1         0x31 
#define   VK_2         0x32 
#define   VK_3         0x33 
#define   VK_4         0x34 
#define   VK_5         0x35 
#define   VK_6         0x36 
#define   VK_7         0x37 
#define   VK_8         0x38 
#define   VK_9         0x39

//定义数据字符A~Z
#define   VK_A	0x41 
#define   VK_B	0x42 
#define   VK_C	0x43 
#define   VK_D	0x44 
#define   VK_E	0x45 
#define   VK_F	0x46 
#define   VK_G	0x47 
#define   VK_H	0x48 
#define   VK_I	0x49 
#define   VK_J	0x4A 
#define   VK_K	0x4B 
#define   VK_L	0x4C 
#define   VK_M	0x4D 
#define   VK_N	0x4E 
#define   VK_O	0x4F 
#define   VK_P	0x50 
#define   VK_Q	0x51 
#define   VK_R	0x52 
#define   VK_S	0x53 
#define   VK_T	0x54 
#define   VK_U	0x55 
#define   VK_V	0x56 
#define   VK_W	0x57 
#define   VK_X	0x58 
#define   VK_Y	0x59 
#define   VK_Z	0x5A 

//定义数据字符a~z
#define   VK_a	0x61 
#define   VK_b	0x62 
#define   VK_c	0x63 
#define   VK_d	0x64 
#define   VK_e	0x65 
#define   VK_f	0x66 
#define   VK_g	0x67 
#define   VK_h	0x68 
#define   VK_i	0x69 
#define   VK_j	0x6A 
#define   VK_k	0x6B 
#define   VK_l	0x6C 
#define   VK_m	0x6D 
#define   VK_n	0x6E 
#define   VK_o	0x6F 
#define   VK_p	0x70 
#define   VK_q	0x71 
#define   VK_r	0x72 
#define   VK_s	0x73 
#define   VK_t	0x74 
#define   VK_u	0x75 
#define   VK_v	0x76 
#define   VK_w	0x77 
#define   VK_x	0x78 
#define   VK_y	0x79 
#define   VK_z	0x7A