How to use the resource file (. Rc)

I'm guessing you are asking for something like the following?
Sorry i didn't include credits, it didn't come with any and i forgot where i downloaded it from.

Code:

; Template using RES file

include 'win32ax.inc'

 IDD_MAINDLG     =       101                             ; Control IDs
       IDC_EXIT        =       40001                           ; Retrieved from the .h file automatically made from VC++

.data
      hInstance       dd      ?                               ; Our instance handle

.code
  start:
          invoke  GetModuleHandle, 0
          mov     [hInstance], eax
            invoke  DialogBoxParam, [hInstance], IDD_MAINDLG, 0, dlgProc, 0
             invoke  ExitProcess, 0
      .end start

proc  dlgProc, hDlg, uMsg, wParam, lParam
 push    ebx esi edi
 cmp     [uMsg], WM_COMMAND
  je      .wmcommand
  cmp     [uMsg], WM_CLOSE
    je      .wmclose
    cmp     [uMsg], WM_INITDIALOG
       je      .wminitdlg
  cmp     [uMsg], WM_DESTROY
  je      .wmclose
    cmp     [uMsg], WM_COMMAND
  je      .wmcommand
  xor     eax, eax
    jmp     .finish

 .wminitdlg:
             mov     eax, 1
              jmp     .finish

 .wmclose:
               invoke  EndDialog, [hDlg], 0
                mov     eax, 1
              jmp     .finish

 .wmcommand:
             mov     eax, [wParam]
               and     eax, 0x0FFFF                            ; To get the LOWORD of wParam

           cmp     eax, IDC_EXIT
               je      .wmclose

                mov     eax, 0
              jmp     .finish                                 ; Just here incase I add another message below, such as WM_TIMER

        .finish:
                pop     edi esi ebx
         ret
endp

section '.rsrc' data readable resource from 'resource.res'       ; Import external .res file (created by a different program, such as VC++)

Or were you referring to something like...
Reading the resource data into a buffer and writing the buffer to a file?