关于用户控件（usercontrol)的问题！请高手不吝赐教！

private sub picbtn1_click（byval sender as object, byval e as system.eventargs) handles ucpicbtn1.click
     msgbox（"你点击的是一个用户控件")
end sub


'以上是你的代码,我在下面进行了改动,注意handles后面
private sub picbtn1_click（byval sender as object, byval e as system.eventargs) handles ucpicbtn1.click,label1.click,picturebox1.click
     msgbox（"你点击的是一个用户控件")
end sub

'上面的label1就是你的那个label控件,picturebox1同理

imports system.io
imports system.reflection
imports system.runtime.interopservices
imports system.diagnostics.fileversioninfo

public class usercontrol1

    public structure mousehookstruct
        public pt as point
        public hwnd as intptr
        public hittest as int32
        public extra as int32
    end structure

    public delegate function callback（byval ncode as int32, byval wparam as intptr, byref lparam as mousehookstruct) as int32

    <marshalas（unmanagedtype.functionptr)> private _mouseproc as callback
    private declare function setwindowshookexw lib "user32.dll" （byval idhook as int32, byval hookproc as callback, byval hinstance as intptr, byval wparam as int32) as int32
    private declare function callnexthookex lib "user32.dll" （byval idhook as int32, byval ncode as int32, byval wparam as intptr, byref lparam as mousehookstruct) as int32
    private declare function getcurrentthreadid lib "kernel32.dll" （) as integer

    private lngmousehook as long

    public event myclick（byval sender as object, byval e as system.eventargs)

    private const wm_lbuttonup as integer = &h202


    private sub usercontrol1_load（byval sender as system.object, byval e as system.eventargs) handles mybase.load
        _mouseproc = new callback（addressof mousehook)
        lngmousehook = setwindowshookexw（7, _mouseproc, intptr.zero, getcurrentthreadid（))
    end sub

    public function mousehook（byval ncode as int32, byval wparam as intptr, byref lparam as mousehookstruct) as int32
        if lparam.hwnd = handle or lparam.hwnd = me.label1.handle or lparam.hwnd = me.picturebox1.handle then
            if wparam = wm_lbuttonup then
                raiseevent myclick（me, system.eventargs.empty)
            end if
        end if

        return callnexthookex（7, ncode, wparam, lparam)
    end function

end class

private sub usercontrol11_myclick（byval sender as system.object, byval e as system.eventargs) handles usercontrol11.myclick
        msgbox（"aaa")
    end sub