keysym2ucs.h File Reference

#include <X11/X.h>

Go to the source code of this file.

Functions
long	keysym2ucs (KeySym keysym)

Function Documentation

keysym2ucs()

long keysym2ucs

(

KeySym

keysym

)

Definition at line 818 of file keysym2ucs.c.

{
    int min = 0;
    int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
    int mid;
 
    /* first check for Latin-1 characters (1:1 mapping) */
    if ((keysym >= 0x0020 && keysym <= 0x007e) ||
        (keysym >= 0x00a0 && keysym <= 0x00ff))
        return keysym;
 
    /* also check for directly encoded 24-bit UCS characters */
    if ((keysym & 0xff000000) == 0x01000000)
    return keysym & 0x00ffffff;
 
    /* binary search in table */
    while (max >= min) {
    mid = (min + max) / 2;
    if (keysymtab[mid].keysym < keysym)
        min = mid + 1;
    else if (keysymtab[mid].keysym > keysym)
        max = mid - 1;
    else {
        /* found it */
        return keysymtab[mid].ucs;
    }
    }
 
    /* no matching Unicode value found */
    return -1;
}