On Tuesday, 18 July 2023 at 22:09:40 UTC, Adam D Ruppe wrote:
You need to use WriteFile when it is redirected, which you can
detect with GetFileType to see if it is a character device or
not.
The redirection issue has been resolved. Another one has now
emerged. Since I have unicode, I need to write 2 bytes each,
which is exactly what happens. In this regard, incorrect output
to the file. How to convert it otherwise? Or does it not depend
on the output?
```d
import core.sys.windows.windows;
import std.stdio;
import std.utf;
void main() {
wstring str = "Это тестовый текст";
HANDLE h_stderr = GetStdHandle(STD_ERROR_HANDLE);
switch (GetFileType(h_stderr)) {
case FILE_TYPE_CHAR:
WriteConsoleW(h_stderr, str.ptr,
cast(DWORD)str.length, NULL, NULL);
break;
case FILE_TYPE_PIPE:
auto utf_str = str.toUTF8;
WriteFile(h_stderr, utf_str.ptr,
cast(DWORD)utf_str.length, NULL, NULL);
break;
default:
}
}
```
output:
```sh
PS C:\dlang\test> dmd.exe .\app.d
PS C:\dlang\test> .\app.exe
Это тестовый текст
PS C:\dlang\test> .\app.exe 2> .\stderr.txt
PS C:\dlang\test> cat .\stderr.txt
.\app.exe : ╨н╤В╨╛ ╤В╨╡╤Б╤В╨╛╨▓╤Л╨╣ ╤В╨╡╨║╤Б╤В
строка:1 знак:1
+ .\app.exe 2> .\stderr.txt
+ ~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (╨н╤В╨╛
╤В╨╡╤Б╤В╨╛╨▓╤Л╨╣ ╤В╨╡╨║╤Б╤В:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
```
