ciabatta/code/os/win/io.c

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>

// It's just mapped directly to HANDLE
struct FILE {
    int unused;
};

void _os_file_write(void* ctx, size_t n, const char str[]) {
    DWORD written = 0;
    WriteFile((HANDLE) ctx, str, n, &written, NULL);
}