如何显示可用的打印机和打印文件 [英] How to show available printers and print file

问题描述

我需要将二进制文件发送到C ++程序中的打印机.除了"system lpr"方法外，还有其他方法吗?目前，我以共享打印机(\\ computer-name \ share-name)的身份打开打印机，并且可以正常工作，但是在添加或更改打印机时比较麻烦.寻找一种显示我可用打印机的方法，让用户选择一个打印机，然后将文件发送到选定的打印机.

I need to send a binary file to a printer within a C++ program. Is there a way other than the ''system lpr'' method? Currently I open a printer as a shared printer (\\computer-name\share-name) and this works ok, but is somewhat cumbersome when printers are added or changed. Looking for a way I can display the available printers, have the user select one, and then send the files to the selected printer.

推荐答案

我找到了

I found this link[^] which suggests that there was a method in the days of Win-95/NT, but I cannot be sure that it still works now; perhaps still worth investigating.

使用PrintDlgEx API显示打印"对话框.
用户可以在此处选择所需的打印机，还可以设置其各种属性.
用户选择要打印的打印机后，PrintDlgEx的PRINTDLGEX结构参数将在其hDC成员中包含所选打印机的设备上下文句柄. 然后，打印到选定的打印机仅是绘制到该打印机设备上下文的问题.

Use the PrintDlgEx API to show the Print dialog.
Here the user can select the printer of choice and also set its various properties.
After the user selects a printer to print, the PRINTDLGEX structure parameter to PrintDlgEx will contain a device context handle to the selected printer in its hDC member.
Printing to the selected printer is then just a matter of drawing to that printer device context.

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