func (d *DLL) MustFindProcByOrdinal(ordinal uintptr) *Proc {
	p, e := d.FindProcByOrdinal(ordinal)
	if e != nil {
		panic(e)
	}
	return p
}
MustFindProcByOrdinal is like FindProcByOrdinal but panics if search fails.
package windows
import (
	"sync"
	"sync/atomic"
	"syscall"
	"unsafe"
)
func syscall_loadlibrary(filename *uint16) (handle Handle, err Errno)
func syscall_getprocaddress(handle Handle, procname *uint8) (proc uintptr, err Errno)
type DLLError struct {
	Err     error
	ObjName string
	Msg     string
}
func (e *DLLError) Error() string { return e.Msg }
func (e *DLLError) Unwrap() error { return e.Err }
type DLL struct {
	Name   string
	Handle Handle
}
func LoadDLL(name string) (dll *DLL, err error) {
	namep, err := UTF16PtrFromString(name)
	if err != nil {
		return nil, err
	}
	h, e := syscall_loadlibrary(namep)
	if e != 0 {
		return nil, &DLLError{
			Err:     e,
			ObjName: name,
			Msg:     "Failed to load " + name + ": " + e.Error(),
		}
	}
	d := &DLL{
		Name:   name,
		Handle: h,
	}
	return d, nil
}
func MustLoadDLL(name string) *DLL {
	d, e := LoadDLL(name)
	if e != nil {
		panic(e)
	}
	return d
}
func (d *DLL) FindProc(name string) (proc *Proc, err error) {
	namep, err := BytePtrFromString(name)
	if err != nil {
		return nil, err
	}
	a, e := syscall_getprocaddress(d.Handle, namep)
	if e != 0 {
		return nil, &DLLError{
			Err:     e,
			ObjName: name,
			Msg:     "Failed to find " + name + " procedure in " + d.Name + ": " + e.Error(),
		}
	}
	p := &Proc{
		Dll:  d,
		Name: name,
		addr: a,
	}
	return p, nil
}
func (d *DLL) MustFindProc(name string) *Proc {
	p, e := d.FindProc(name)
	if e != nil {
		panic(e)
	}
	return p
}
func (d *DLL) FindProcByOrdinal(ordinal uintptr) (proc *Proc, err error) {
	a, e := GetProcAddressByOrdinal(d.Handle, ordinal)
	name := "#" + itoa(int(ordinal))
	if e != nil {
		return nil, &DLLError{
			Err:     e,
			ObjName: name,
			Msg:     "Failed to find " + name + " procedure in " + d.Name + ": " + e.Error(),
		}
	}
	p := &Proc{
		Dll:  d,
		Name: name,
		addr: a,
	}
	return p, nil
}