Create Window("BUTTON", "Button", 
              WS_VISIBLE | WS_CHILD  | BS_DEFPUSHBUTTON,
              10, 10, 50, 21, hParent, NULL, hInstance, NULL);

If you want your application to use visual styles, you must add an application manifest that indicates that ComCtl32.dll version 6 should be used if it is available. Version 6 includes some new controls and new options for other controls, but the biggest change is support for changing the appearance of controls in a window.

SendMessage( hwndCtrl, WM_SETFONT, ( WPARAM ) SendMessage( hwndParent, WM_GETFONT, 0, 0 ), 0 );

SendMessage( hwndCtrl, WM_SETFONT, ( WPARAM ) SendMessage( hwndParent, WM_GETFONT, 0, 0 ), 0 );

SD>или нет?

inline void SetFont(HWND hControl, HFONT hFont, bool Repaint)
{
  assert(IsWindow(hControl));
  assert(GetObjectType(hFont) == OBJ_FONT);
  SendMessage(hControl, WM_SETFONT, reinterpret_cast<WPARAM>(hFont), Repaint);
}

HWND CreateButton(HWND hParent, ...)
{
  assert(IsWindow(hParent));
  HWND hButton = CreateWindowEx(..., hParent, ...);
  ...
  HFONT hFont = static_cast<HFONT>(GetStockObject(DEFAULT_GUI_FONT));
  SetFont(hButton, hFont, /*Repaint:*/false);
  ...
  return hButton;
}