context code造句

specifies the extended-key flag, event-injected flag, context code, and transition-state flag . this member is specified as follows . an application can use the following values to test the keystroke flags
指定扩展键标志，事件注入标志，上下文代码，转换状态码。成员如下所示。应用程序可以使用下列值来检查键盘敲击标志。
It's difficult to find context code in a sentence. 用context code造句挺难的