How can I query whether a path is a folder or directory?

BOOL IsThePathFolder(LPCTSTR pfad)
{
if(!pfad)return FALSE;

DWORD dwAttr = GetFileAttributes(pfad);
if (dwAttr != 0xffffffff)
{
if (dwAttr & FILE_ATTRIBUTE_DIRECTORY)
{

return TRUE;

}
}
return FALSE;
}

void main()
{
if(IstDerPfadEinOrdner("C:\Windows"))
printf("The path is a folder ergo directory\n");
else printf("The path is not a folder or directory\n");
}