Problem is resolved.
I found the file 'sample.rc' in wxWidgets directory. There are brief descriptions:
// set this to 1 if you don't want to use manifest resource (manifest resource
// is needed to enable visual styles on Windows XP - see docs/msw/winxp.txt
// for more information)
#define wxUSE_NO_MANIFEST 0
So i add '#define wxUSE_NO_MANIFEST 0' in my resource.rc. That's great, the problem is resolved!