pub type PCLUSAPI_CLUSTER_GROUP_GROUPSET_CONTROL_EX = Option<unsafe extern "system" fn(hgroupset: HGROUPSET, hhostnode: HNODE, dwcontrolcode: u32, lpinbuffer: *const c_void, cbinbuffersize: u32, lpoutbuffer: *mut c_void, cboutbuffersize: u32, lpbytesreturned: *mut u32, lpszreason: PCWSTR) -> u32>;
enum PCLUSAPI_CLUSTER_GROUP_GROUPSET_CONTROL_EX {
None,
Some(unsafe extern "system" fn(_: HGROUPSET, _: HNODE, _: u32, _: *const c_void, _: u32, _: *mut c_void, _: u32, _: *mut u32, _: PCWSTR) -> u32),
}