Возможно ли заменить функции stdio.h на WinApi ?

          f=fopen(fileName,"rb");
 
          int size;
    do
    {
        size=fread(buff,1,MAX_PATH,f);
        if(send(transferFtpSocket,buff,sizeof(buff),0)==SOCKET_ERROR)
            return 0;
    }while(size==MAX_PATH);

HANDLE hFile = CreateFile(fileName,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
 
 
HANDLE hEndRead = CreateEvent(NULL, FALSE, FALSE, NULL);
    
    OVERLAPPED  ovl;
    ovl.Offset = 0;        
    ovl.OffsetHigh = 0;      
    ovl.hEvent = hEndRead;  
 
    DWORD read=0;
 
    while(ReadFile(hFile,&buff,sizeof(buff),&read,&ovl))
    {
        WaitForSingleObject(hEndRead, INFINITE);
 
        if(send(transferFtpSocket,buff,sizeof(buff),0)==SOCKET_ERROR)
            return 0;
 
        ovl.Offset += sizeof(buff);
    }

 while(!ReadFile(hFile,&buff,sizeof(buff),&read,&ovl))

if (hFile == INVALID_HANDLE_VALUE) ;

int size = GetFileSize(hFile,0);
 
    do
    {
        ReadFile(hFile,&buff,sizeof(buff),&read,&ovl);
        WaitForSingleObject(hEndRead, INFINITE);
        
        if(send(transferFtpSocket,buff,sizeof(buff),0)==SOCKET_ERROR)
            return 0;
 
        ovl.Offset += sizeof(buff);
        
    }while(ovl.Offset<size);