Provided by: libx11-doc_1.6.2-1ubuntu2_all bug


       XStringToKeysym, XKeysymToString, XKeycodeToKeysym, XKeysymToKeycode, XConvertCase -
       convert keysyms


       KeySym XStringToKeysym(char *string);

       char *XKeysymToString(KeySym keysym);

       KeySym XKeycodeToKeysym(Display *display, KeyCode keycode, int index);

       KeyCode XKeysymToKeycode(Display *display, KeySym keysym);

       void XConvertCase(KeySym keysym, KeySym *lower_return, KeySym *upper_return);


       display   Specifies the connection to the X server.

       index     Specifies the element of KeyCode vector.

       keycode   Specifies the KeyCode.

       keysym    Specifies the KeySym that is to be searched for or converted.

                 Returns the lowercase form of keysym, or keysym.

       string    Specifies the name of the KeySym that is to be converted.

                 Returns the uppercase form of keysym, or keysym.


       Standard KeySym names are obtained from <X11/keysymdef.h> by removing the XK_ prefix from
       each name.  KeySyms that are not part of the Xlib standard also may be obtained with this
       function.  The set of KeySyms that are available in this manner and the mechanisms by
       which Xlib obtains them is implementation-dependent.

       If the KeySym name is not in the Host Portable Character Encoding, the result is
       implementation-dependent.  If the specified string does not match a valid KeySym,
       XStringToKeysym returns NoSymbol.

       The returned string is in a static area and must not be modified.  The returned string is
       in the Host Portable Character Encoding.  If the specified KeySym is not defined,
       XKeysymToString returns a NULL.

       The XKeycodeToKeysym function uses internal Xlib tables and returns the KeySym defined for
       the specified KeyCode and the element of the KeyCode vector.  If no symbol is defined,
       XKeycodeToKeysym returns NoSymbol.  XKeycodeToKeysym predates the XKB extension. If you
       want to lookup a KeySym while using XKB you have to use XkbKeycodeToKeysym.

       If the specified KeySym is not defined for any KeyCode, XKeysymToKeycode returns zero.

       The XConvertCase function returns the uppercase and lowercase forms of the specified
       Keysym, if the KeySym is subject to case conversion; otherwise, the specified KeySym is
       returned to both lower_return and upper_return.  Support for conversion of other than
       Latin and Cyrillic KeySyms is implementation-dependent.


       XkbKeycodeToKeysym(3), XLookupKeysym(3)
       Xlib - C Language X Interface