- 1. On a display device keyboard, a key that produces a call to a program that performs display operations.; 显示设备键盘上产生调用显示操作程序的一种按键。 参阅program function (PF) key。 2. In 3270 applications, a type of program attention key that may be defined to solicit application program attention without requiring that input data be transmitted to the program. Only the attention identification (AID) character is transmitted to the program to identify the key that was pressed. | 在IBM信息显示系统3270应用程序中,一种类型的程序注意键。它可以被定义为请求应用程序注意 而不必向程序输入数据,仅有注意标识符(AID)字符传送给程序,以识别该键被按下。
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