void gtk_im_context_set_surrounding ( GtkIMContext* context, const char* text, int len, int cursor_index )
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
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.
The length of
text, or -1 if
The byte index of the insertion cursor within