将 Win32 资源文件加载为 wstringstream [英] Loading Win32 resource file as wstringstream
问题描述
这是对提出和回答的问题的跟进此处.我想使用一个文本文件作为资源,然后将它作为 stringstream
加载,以便我可以解析它.
This a follow up of the question asked and answered here. I want to use a text file as a resource and then load it as a stringstream
so that I can parse it.
以下代码显示了我目前拥有的:
The following code shows what I currently have:
std::string filename("resource.txt");
HRSRC hrsrc = FindResource(GetModuleHandle(NULL), filename.c_str(), RT_RCDATA);
HGLOBAL res = LoadResource(GetModuleHandle(NULL), hrsrc);
LPBYTE data = (LPBYTE)LockResource(res);
std::stringstream stream((LPSTR)data);
但是,我不确定如何扩展它以使用 wstringstream
读取 unicode 文本文件.天真的方法产生不可读的字符:
However, I am unsure of how to extend this to read a unicode text file using a wstringstream
. The naive approach yields unreadable characters:
...
LPBYTE data = (LPBYTE)LockResource(res);
std::wstringstream wstream((LPWSTR)data);
由于 LPBYTE
只不过是一个 CHAR*
,所以这不起作用也就不足为奇了,而是天真地将资源转换为 WCHAR*
(LPWSTR
) 也不起作用:
Since LPBYTE
is nothing more than a CHAR*
, it is no surprise that this doesn't work, but naively converting the resource to a WCHAR*
(LPWSTR
) does not work either:
...
LPWSTR data = (LPWSTR)LockResource(res);
std::wstringstream wstream(data);
我猜这是因为 WCHAR
是 16 位,而不是像 CHAR
那样的 8 位,但我不确定如何解决这个问题.
I am guessing this is because a WCHAR
is 16-bit instead of 8-bit like a CHAR
, but I'm not sure how to work around this.
感谢您的帮助!
推荐答案
您的评论提供了关键的缺失细节.您编译为资源的文件被编码为 UTF-8
.所以显而易见的选择是:
Your comment supplies the key missing detail. The file that you compiled into a resource is encoded as UTF-8
. So the obvious options are:
- 使用问题中的代码,获取指向资源的指针,编码为 UTF-8,然后传递该
MultiByteToWideChar
以转换为 UTF-16.然后您可以将其放入wstring
. - 在编译资源之前,将您编译为资源的文件转换为 UTF-16.然后您问题中的代码将起作用.
- Using the code in your question, get a pointer to the resource, encoded as UTF-8, and pass that
MultiByteToWideChar
to convert to UTF-16. Which you can then put into awstring
. - Convert the file that you compile into a resource to UTF-16, before you compile the resource. Then the code in your question will work.
这篇关于将 Win32 资源文件加载为 wstringstream的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!