You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: connection.go
    path of file: ./repos/bzppx-codepub/vendor/github.com/go-ole/go-ole/oleutil
    
    the code of the file until where you have to start completion: // +build windows

package oleutil

import (
	"reflect"
	"unsafe"

	ole "github.com/go-ole/go-ole"
)

type stdDispatch struct {
	lpVtbl  *stdDispatchVtbl
	ref     int32
	iid     *ole.GUID

    
func dispInvoke(this *ole.IDispatch, dispid int32, riid *ole.GUID, lcid int, flags int16, dispparams *ole.DISPPARAMS, result *ole.VARIANT, pexcepinfo *ole.EXCEPINFO, nerr *uint) uintptr {
	pthis := (*stdDispatch)(unsafe.Pointer(this))
	found := ""
	for name, id := range pthis.funcMap {
		if id == dispid {
			found = name
		}
	}
	if found != "" {
		rv := reflect.ValueOf(pthis.iface).Elem()
		rm := rv.MethodByName(found)
		rr := rm.Call([]reflect.Value{})
		println(len(rr))
		return ole.S_OK
	}
	return ole.E_NOTIMPL
}