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In order to support languages that cannot be inputted directly from keyboard, like Japanese characters, an abstract of input method has been introduced . An input method may be an independent server process (X Input Method Server, XIMS for short) or an embedded functionality in Xlib. In either case, an international Xlib function XOpenIM() opens an input method and XCreateIC() creates an input context, which is an operational unit of text input.
The following are international X library functions related to text input:
------------------------------------------------------------------------------------------------------------------- Function Description ------------------------------------------------------------------------------------------------------------------- XOpenIM Opens an input method XCloseIM Closes an input method XDisplayOfIM Obtains a display related to an input method XLocaleOfIM Obtains a locale related to an input method XSetIMValues Sets the properties of an input method XGetIMValues Gets the properties of an input method XCreateIC Creates an input context XVaCreateNestedList Creates a nested variable-length list XDestroyIC Destroys an input context XIMofIC Obtains an input method related to an input context XSetICValues Sets the properties of an input context XGetICValues Gets the properties of an input context XSetICFocus Sets the focus on an input context XUnsetICFocus Unsets the focus on an input context XmbResetIC Resets the state of an input context XwcResetIC Resets the state of an input context XFilterEvent Filters an X event for text input XmbLookupString Obtains the inputted text as a multibyte string XwcLookupString Obtains the inputted text as a wide character string XRegisterIMINstantiateCallback Registers a callback function called when an input method becomes available XUnregisterIMInstantiateCallback Registers a callback function called when an input method becomes unavailable -------------------------------------------------------------------------------------------------------------------The following are the mappings of international functions and non-international functions regarding text input:
------------------------------------------------------------------------ Non-international International function International function function (wide character) (multibyte character) ------------------------------------------------------------------------ XLookupString XwcLookupString XmbLookupString XLookupKeysym XwcLookupString XmbLookupString ------------------------------------------------------------------------
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