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#include <pc.h> const unsigned char * __get_extended_key_string(int xkey_code);
Returns an ECMA-48 compliant representation of an extended key's scan code in xkey_code.
See section getkey. See section getxkey.
A pointer to an ECMA-48 compliant string if the scan code xkey_code
has an encoding or NULL
if there is not.
Note that this function is DJGPP-specific.
not ANSI, not POSIX
#include <pc.h> #include <stdio.h> int key; int main() { key = getxkey(); if (key < 0x100) { putc(key, stdout); putc('\r', stdout); } else { const unsigned char *str = __get_extended_key_string(key); if (str) puts(str); else puts("<unknown>"); } fflush(stdout); }
#include <pc.h> #include <stdio.h> #include <dpmi.h> int main() { __dpmi_regs r; const unsigned char *str; int is_extended_key; /* Wait for keypress. */ r.h.ah = 0x11; __dpmi_int(0x16, &r); /* Print the encoding for function keys (F1, F2, etc.) and other extended keys (Home, End, etc.). */ is_extended_key = (r.h.al == 0x00 || r.h.al == 0xe0); if (is_extended_key) { str = __get_extended_key_string((int)r.h.ah) printf("Key encoding: %s", str); } }
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