如何在没有用户交互的情况下向打印机发出命令（无打印对话框）

Question

我正在用PHP创建一个应用程序，想给打印机一个命令，但是问题是有两个以上的打印机，我想通过单击没有打印对话框的不同按钮来给另一个打印机提供命令。

Answer 1

you can use:

printer_list()

function to get list of printers attached to server, and then use:

printer_open

to open connection to printer providing printer name as parameter to the function. I hope that helps you to some extent

Answer 2

In online web applications you can't.

A workaround could be to write Java Applet or in IE you can do this via ActiveX controls.