mark_directory_as_case_sensitive_sdk.cpp

#include <windows.h>
#include <cstdio>
#include <cstdlib>
#include <wil/filesystem.h>
#include <wil/resource.h>

int wmain(int, PWSTR argv[])
{
	const auto [d, e] = wil::try_open_file(argv[1], FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_FLAG_BACKUP_SEMANTICS);
	if (!d)
	{
		fprintf(stderr, "CreateFile %08lx\n", e);
		return EXIT_FAILURE;
	}
	FILE_CASE_SENSITIVE_INFORMATION file_cs = { FILE_CS_FLAG_CASE_SENSITIVE_DIR };
	if (!SetFileInformationByHandle(d.get(), FileCaseSensitiveInfo, &file_cs, sizeof file_cs))
	{
		fprintf(stderr, "SetFileInformationByHandle %08lx\n", GetLastError());
		return EXIT_FAILURE;
	}
}