Function kernel32::CopyFileExW

pub unsafe extern "system" fn CopyFileExW(
    lpExistingFileName: LPCWSTR, 
    lpNewFileName: LPCWSTR, 
    lpProgressRoutine: LPPROGRESS_ROUTINE, 
    lpData: LPVOID, 
    pbCancel: LPBOOL, 
    dwCopyFlags: DWORD
) -> BOOL