Как найти все комьютеры в сети 3

Автор: SmaLL

function EnumerateFunc(hwnd: HWND; hdc: HDC; lpnr: PNetResource): Boolean;
const
  cbBuffer: DWORD = 16384; // 16K is a good size
var
  hEnum, dwResult, dwResultEnum: DWORD;
  lpnrLocal: array
  [0..16384 div SizeOf(TNetResource)] of TNetResource;
    // pointer to enumerated structures
  i: integer;
  cEntries: Longint;
begin
  centries := -1; // enumerate all possible entries

  // Call the WNetOpenEnum function to begin the enumeration.
  dwResult := WNetOpenEnum(
    RESOURCE_CONTEXT, // Enumerate currently connected resources.
    RESOURCETYPE_DISK, // all resources
    0, // enumerate all resources
    lpnr, // NULL first time the function is called
    hEnum // handle to the resource
    );

  if (dwResult <> NO_ERROR) then
  begin
    // Process errors with an application-defined error handler
    Result := False;
    Exit;
  end;

  // Initialize the buffer.
  FillChar(lpnrLocal, cbBuffer, 0);

  // Call the WNetEnumResource function to continue
  //  the enumeration.
  dwResultEnum := WNetEnumResource(hEnum, // resource handle
    DWORD(cEntries), // defined locally as -1
    @lpnrLocal, // LPNETRESOURCE
    cbBuffer); // buffer size

  // This is just printing
  for i := 0 to cEntries - 1 do
  begin
    // loop through each structure and
    // get remote name of resource... lpnrLocal[i].lpRemoteName)
  end;

  // Call WNetCloseEnum to end the enumeration.
  dwResult := WNetCloseEnum(hEnum);

  if (dwResult <> NO_ERROR) then
  begin
    // Process errors... some user defined function here
    Result := False;
  end
  else
    Result := True;
end;