abivan (04.04.2011 11:05 - 16:19, просмотров: 180) ответил xanoy на Всем привет. Нужен тест клавиатуры PC, который тестирует клавиатуру в командной строке (без графического интерфейса). Поделитесь если есть. За ранние спасибо.
qc25 example keybrd.c во вложении скомпилированный exe /* KEYBRD.C illustrates:
* _bios_keybrd
*/
#include <bios.h>
#include <stdio.h>
#include <ctype.h>
/* Macro to peek at a specified memory address */
#define peek( addr ) (*(unsigned char _far *)addr)
void main()
{
unsigned key, shift, scan, ascii = 0;
int kread = _KEYBRD_READ;
int kready = _KEYBRD_READY;
int kshiftstatus = _KEYBRD_SHIFTSTATUS;
/* If bit 4 of the byte at 0x0040:0x0096 is set, the new keyboard
* is present.
*/
if ( peek( 0x00400096 ) & 0x10 ) {
kread = _NKEYBRD_READ;
kready = _NKEYBRD_READY;
kshiftstatus = _NKEYBRD_SHIFTSTATUS;
}
printf( "New keyboard %s\n",
(kread == _NKEYBRD_READ) ? "present" : "not present" );
/* Read and display keys until ESC is pressed. */
while ( ascii != 27 ) {
/* Drain any keys in the keyboard type-ahead buffer, then get
* the current key. If you want the last key typed rather than
* the key currently being typed, omit the initial loop.
*/
while ( _bios_keybrd( kready ) )
_bios_keybrd( kread );
key = _bios_keybrd( kread );
/* Get shift state. */
shift = _bios_keybrd( kshiftstatus );
/* Split key into scan and ascii parts. */
scan = key >> 8;
ascii = key & 0x00ff;
/* Categorize key. */
if ( (ascii == 0) || (ascii == 0xE0 ) )
printf( "ASCII: no\tChar: NA\t" );
else if ( ascii < 32 )
printf( "ASCII: yes\tChar: ^%c\t", ascii + '@' );
else
printf( "ASCII: yes\tChar: %c \t", ascii );
printf( "Code: %.2X\tScan: %.2X\t Shift: %.4X\n",
ascii, scan, shift );
}
}