在 ShellExecute 中，如何指定页面范围、托盘等打印参数? [英] In ShellExecute, how to specify print parameters like page range, tray etc?

问题描述

这是我使用 Python 在 Windows 机器上打印 pdf 文件的代码.我安装了 adobe Acrobat Reader 以帮助打印.

win32api.ShellExecute(0,"print",file_path,"NPIAC1EC3 (HP LaserJet Pro MFP M226dw)",".",3)

如何添加其他选项以提及诸如打印机托盘/页面来源、页面范围等内容?

我已阅读有关 ShellExecute.

我在文档中看到有一个 lpParameters(我完全猜测这是我指定打印参数的地方)但没有解释如何将它与打印"参数一起使用.

解决方案

链接的文档说明您想要的是不可能的.评论摘录(强调我的):

语法:

<块引用>

HINSTANCE ShellExecute(_In_opt_ HWND hwnd，_In_opt_ LPCTSTR lpOperation，_In_ LPCTSTR lpFile，_In_opt_ LPCTSTR lpParameters，_In_opt_ LPCTSTR lpDirectory，_In_ INT nShowCmd);

参数
...

• lpOperation [输入，可选]

  类型:LPCTSTR

  指向以空字符结尾的字符串的指针，在这种情况下称为动词，...以下动词是常用的:
  ...
  

  打印

  打印 lpFile 指定的文件.如果 lpFile 不是文档文件，则函数失败.

所以当你使用 "print" 作为动词时 lpFile 应该是一个文档文件

<块引用>

...

• lpParameters [输入，可选]

  类型:LPCTSTR

  如果 lpFile 指定一个可执行文件，则此参数是一个指向以空字符结尾的字符串的指针，该字符串指定要传递给应用程序的参数.此字符串的格式由要调用的动词决定.如果 lpFile 指定了一个文档文件，lpParameters 应该是 NULL.

所以当你使用print作为动词时，lpFile必须是一个文档文件，并且lpParameters必须为空:没有规定将附加参数传递给 ShellExecute 打印操作.

This is the code I'm using to print a pdf file on a Windows machine using Python. I've adobe Acrobat Reader installed to aid in printing.

win32api.ShellExecute(0,"print",file_path,"NPIAC1EC3 (HP LaserJet Pro MFP M226dw)",".",3)  

How can I add additional options to mention things like Printer Tray/Page Source, page range etc?

I've read the documentation on ShellExecute from MSDN .

I've seen in the documentation that there is a lpParameters (I'm totally guessing that this is where I specify printing parameters) but no explanations on how to use it with "print" parameter.

解决方案

The linked documentation states what what you want is not possible. Commented extracts (emphasize mine):

Syntax:

HINSTANCE ShellExecute(
  _In_opt_ HWND    hwnd,
  _In_opt_ LPCTSTR lpOperation,
  _In_     LPCTSTR lpFile,
  _In_opt_ LPCTSTR lpParameters,
  _In_opt_ LPCTSTR lpDirectory,
  _In_     INT     nShowCmd
);

Parameters
...

• lpOperation [in, optional]

  Type: LPCTSTR

  A pointer to a null-terminated string, referred to in this case as a verb, ... The following verbs are commonly used:
  ...
  

  print

  Prints the file specified by lpFile. If lpFile is not a document file, the function fails.

So when you use "print" as a verb lpFile shall be a document file

...

• lpParameters [in, optional]

  Type: LPCTSTR

  If lpFile specifies an executable file, this parameter is a pointer to a null-terminated string that specifies the parameters to be passed to the application. The format of this string is determined by the verb that is to be invoked. If lpFile specifies a document file, lpParameters should be NULL.

So when you use print as the verb, lpFile must be a document file, and lpParameters must be null: there is no provision to pass additional parameters to a ShellExecute print action.

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