#include <windows.h>
#include <stdio.h>

int wmain() {
    LPCWSTR filePath = L"C:\\Users\\SEEDAGX\\source\\repos\\CompressFile\\CompressFile\\test.txt"; // 圧縮したいファイルのパスを指定します

    HANDLE hFile = CreateFile(
        filePath,
        GENERIC_READ | GENERIC_WRITE, // 読み取りと書き込みのアクセス許可を付与
        0,
        NULL,
        OPEN_EXISTING,
        FILE_ATTRIBUTE_NORMAL,
        NULL
    );

    if (hFile == INVALID_HANDLE_VALUE) {
        printf("Failed to open file. Error code: %d\n", GetLastError());
        return 1;
    }

    USHORT compressionFormat = COMPRESSION_FORMAT_DEFAULT;
    DWORD bytesReturned;
    if (!DeviceIoControl(hFile, FSCTL_SET_COMPRESSION, &compressionFormat, sizeof(compressionFormat), NULL, 0, &bytesReturned, NULL)) {
        printf("Compression failed. Error code: %d\n", GetLastError());
        CloseHandle(hFile);
        return 1;
    }

    CloseHandle(hFile);
    printf("File compressed successfully\n");
    return 0;
}