Sets surrounding context around the insertion point and preedit string. This function is expected to be called in response to the GtkIMContext::retrieve_surrounding signal, and will likely have no effect if called at other times.
text surrounding the insertion point, as UTF-8. the preedit string should not be included within text.
the length of text, or -1 if text is nul-terminated
the byte index of the insertion cursor within text.
Sets surrounding context around the insertion point and preedit string. This function is expected to be called in response to the GtkIMContext::retrieve_surrounding signal, and will likely have no effect if called at other times.