#include <windows.h> #include <stdio.h> void MyEncryptFile(const wchar_t* path) { if (!EncryptFileW(path)) { wprintf(L"Failed to encrypt file. Error: %d\n", GetLastError()); } else { wprintf(L"File encrypted successfully.\n"); } } int wmain(int argc, wchar_t* argv[]) { if (argc != 2) { wprintf(L"Usage: %s <file_path>\n", argv[0]); return 1; } const wchar_t* filePath = argv[1]; MyEncryptFile(filePath); return 0; }