using System;
using System.Runtime.InteropServices;
namespace EventSource
{
public delegate void ClickDelegate(int x, int y);
public delegate void ResizeDelegate();
public delegate void PulseDelegate();
// Step 1: Defines an event sink interface (ButtonEvents) to be
// implemented by the COM sink.
[GuidAttribute("1A585C4D-3371-48dc-AF8A-AFFECC1B0967")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIDispatch)]
public interface IButtonEvents
{
void Click(int x, int y);
void Resize();
void Pulse();
}
[Guid("51917E6C-87A2-4B70-B1A8-47C47F8007E4")]
public interface MyCom_Interface
{
[DispId(1)]
int Add(int param11, int param12);
}
// Step 2: Connects the event sink interface to a class
// by passing the namespace and event sink interface
// ("EventSource.ButtonEvents, EventSrc").
[Guid("FE6A8C43-D4B6-4100-BC6B-06333F95A57F"), ClassInterface(ClassInterfaceType.None), ComSourceInterfaces(typeof(IButtonEvents))]
public class Button : MyCom_Interface
{
public event ClickDelegate Click;
public event ResizeDelegate Resize;
public event PulseDelegate Pulse;
public Button()
{
}
public void CauseClickEvent(int x, int y)
{
Click(x, y);
}
public void CauseResizeEvent()
{
Resize();
}
public void CausePulse()
{
Pulse();
}
public int Add(int param11, int param12)
{
Resize();
return param11 + param12;
}
}
}
uj5u.com熱心網友回復：
來人幫忙啊
uj5u.com熱心網友回復：
#import "xxx.tlb" no_namespace named_guids//命名規則：介面Ptr p((__uuidof(類)))
MyCom_InterfacePtr p(__uuidof(Button));
p->Add(xxx,xxx);
uj5u.com熱心網友回復：
現在需要使用連接點 來接收這些委托 ，該怎么寫
uj5u.com熱心網友回復：
#include "stdafx.h"
#include <Windows.h>
#include <comdef.h>
#include "Debug/classlibrary1.tlh"
#include "SinkButtonEvent.h"
CComModule _Module;
int main()
{
CoInitialize(NULL);
IConnectionPoint *pEvent1 = NULL;
ButtonEventListener* pEvent = new ButtonEventListener;
IConnectionPointContainer * pContainer;
IUnknownPtr pUnk = NULL;
HRESULT hr;
MyCom_InterfacePtr pFirst = NULL;
ULONG dwAdvise;
IUnknown *SinkUnk;
hr = CoCreateInstance(CLSID_Button, NULL, CLSCTX_INPROC_SERVER, IID_MyCom_Interface, (void**)&pUnk);
hr = pUnk->QueryInterface(__uuidof(MyCom_Interface), (void**)&pFirst);
hr = pFirst->QueryInterface(IID_IConnectionPointContainer, (void**)&pContainer);
hr = pContainer->FindConnectionPoint(DIID_IButtonEvents, &pEvent1);
hr = pEvent->QueryInterface(__uuidof(IButtonEvents), (VOID**)&SinkUnk);
hr = pEvent1->Advise(SinkUnk, &dwAdvise);
int i = pFirst->Add(1, 2);
hr = pEvent1->Unadvise(dwAdvise);
pFirst->Release();
pUnk->Release();
CoUninitialize();
return 0;
}
#pragma once
#include "stdafx.h"
#include "Debug/classlibrary1.tlh"
class SinkButtonEvent : public IButtonEvents
{
private:
DWORD m_dwRefCount;
public:
SinkButtonEvent() { m_dwRefCount = 0; }
virtual ~SinkButtonEvent(void) {}
STDMETHODIMP GetTypeInfoCount(UINT *pctinfo) { return E_NOTIMPL; }
STDMETHODIMP GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo) { return E_NOTIMPL; }
STDMETHODIMP GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId) { return E_NOTIMPL; }
STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
printf("%d", dispIdMember);
LONG *lValue = pVarResult->plVal;
printf(" ---------the dispid %d\n", dispIdMember);
OnReceiver(lValue);
return S_OK;
}
STDMETHOD(QueryInterface)(REFIID iid, LPVOID* ppv)
{
if ((iid == __uuidof(IButtonEvents)) || (iid == __uuidof(IMarshal)) ||
(iid == __uuidof(IDispatch)) ||
(iid == __uuidof(IUnknown)))
{
m_dwRefCount++;
*ppv = this;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
return S_OK;
}
STDMETHOD_(ULONG, AddRef)()
{
return InterlockedIncrement(&m_dwRefCount);
}
STDMETHOD_(ULONG, Release)()
{
InterlockedDecrement(&m_dwRefCount);
if (m_dwRefCount != 0)
return m_dwRefCount;
delete this;
return 0;
}
HRESULT STDMETHODCALLTYPE OnReceiver(LONG * ResponseID)
{
printf("C++ SINK: Addition started event fired ..%d. \n", ResponseID);
return S_OK;
};
};
class ButtonEventListener : public IDispatch //DWebBrowserEvents2
{
private:
void __stdcall DocumentComplete(IDispatch *pDisp, VARIANT *URL);
public: // IDispatch methods
STDMETHOD(QueryInterface)(REFIID riid, void **ppvObject)
{
HRESULT hr = E_NOINTERFACE;
if (riid == __uuidof(IDispatch) ||
riid == __uuidof(IButtonEvents) ||
riid == __uuidof(IUnknown) //|| riid == IID_Man
)
{
*ppvObject = (IDispatch*)this;
AddRef();
hr = S_OK;
}
return hr;
}
STDMETHODIMP_(ULONG) AddRef(void)
{
return 1;
}
STDMETHODIMP_(ULONG) Release(void)
{
return 1;
}
STDMETHOD(GetTypeInfoCount)(UINT*)
{
return E_NOTIMPL;
}
STDMETHOD(GetTypeInfo)(UINT, LCID, ITypeInfo**)
{
return E_NOTIMPL;
}
STDMETHOD(GetIDsOfNames)(REFIID, LPOLESTR *rgszNames, UINT, LCID, DISPID *rgDispId)
{
return E_NOTIMPL;
}
STDMETHOD(Invoke)(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR* pDispParams, VARIANT FAR* pVarResult, EXCEPINFO FAR* pExcepInfo, unsigned int FAR* puArgErr)
{
if (dispIdMember == 1)
{
__asm {int 3};
}
return S_OK;
}
};
照著網上例子寫的 ,hr 一直回傳S_OK, 但呼叫add時就會出錯
uj5u.com熱心網友回復：
加分 求幫忙uj5u.com熱心網友回復：
c#可以傳回呼，可以自己定義個callback，為啥一定要連接點通過這樣的方式？uj5u.com熱心網友回復：
具體咋弄 有啥可以參考的帖子嗎
uj5u.com熱心網友回復：
https://blog.csdn.net/xuddk727/article/details/11613073轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/25239.html