x11::xt
pub unsafe extern fn XtGetSelectionValue(_6: Widget, _5: c_ulong, _4: c_ulong, _3: Option<unsafe extern fn(Widget, *mut c_void, *mut c_ulong, *mut c_ulong, *mut c_void, *mut c_ulong, *mut c_int)>, _2: *mut c_void, _1: c_ulong)