Function Tcl_DictObjFirst 

pub unsafe extern "C" fn Tcl_DictObjFirst(
    interp: *mut Tcl_Interp,
    dictPtr: *mut Tcl_Obj,
    searchPtr: *mut Tcl_DictSearch,
    keyPtrPtr: *mut *mut Tcl_Obj,
    valuePtrPtr: *mut *mut Tcl_Obj,
    donePtr: *mut c_int,
) -> c_int