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XStringToKeysym

Section: XLIB FUNCTIONS (3)
Updated: libX11 1.6.4
Index Return to Main Contents
 

NAME

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

SYNTAX

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);
 

ARGUMENTS

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.
lower_return
Returns the lowercase form of keysym, or keysym.
string
Specifies the name of the KeySym that is to be converted.
upper_return
Returns the uppercase form of keysym, or keysym.
 

DESCRIPTION

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.  

SEE ALSO

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


 

Index

NAME
SYNTAX
ARGUMENTS
DESCRIPTION
SEE ALSO


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