為應(yīng)用程序添加腳本支持

1、為應(yīng)用程序添加腳本支持 2006年07月21日 PowerCPP1 2 下一頁 本文示例源代碼或素材下載代碼運行效果圖如下：介紹有時我們并不需要提供完整的腳本支持,就像本文所要介紹的ActiveX腳本宿主(script hosting,可能稱為腳本引擎更好理解),本文提供的ScriptControlMacro程序展示了使用Microsoft腳本控件簡單地實現(xiàn)腳本支持功能,代碼中還包括了以下一些技術(shù):用文件映射實現(xiàn)只允許一個應(yīng)用實例.如何用MFC存儲讀取二進(jìn)制注冊表數(shù)據(jù)如何保存恢復(fù)應(yīng)用程序窗口尺寸,位置如何在CEditView派生類中使用不同地字體如何捕捉OLE異常并顯示錯誤信息等.開始前的準(zhǔn)備

2、這篇文章假定你已經(jīng)對COM、ActiveX控件、OLE自動化有所熟悉，并知道如何在MFC里使用他們。因為這些技術(shù)包含了相當(dāng)多的內(nèi)容，因此你應(yīng)該先學(xué)習(xí)一下這些內(nèi)容再來看本文?；静襟E：1、建立一個提供ActiveX控件支持的新的MFC工程2、使用ClassWizard從腳本控件類型庫中建立一個dispatch類ClassWizard將為腳本控件接口生成頭文件與執(zhí)行文件。 / Machine generated IDispatch wrapper class(es) created with/ ClassWizard/ IScriptControl wrapper classclass IScri

3、ptControl : public COleDispatchDriver/ Operationspublic:void SetLanguage(LPCTSTR lpszNewValue);void SetSitehWnd(HWND hWnd);LPDISPATCH GetError();void AddObject(LPCTSTR Name, LPDISPATCH Object, BOOL AddMembers);void AddCode(LPCTSTR Code);/ Machine generated IDispatch wrapper class(es) created/ with C

4、lassWizard#include "stdafx.h"#include "MSScriptControl.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ IScriptControl operationsvoid IScriptControl:SetLanguage(LPCTSTR lpszNewValue)static BYTE parms =VTS_BSTR;InvokeHelper(0x5dc, DISPATCH

5、_PROPERTYPUT, VT_EMPTY, NULL, parms,lpszNewValue);void IScriptControl:SetSitehWnd(HWND hWnd)static BYTE parms =VTS_I4;InvokeHelper(0x5de, DISPATCH_PROPERTYPUT, VT_EMPTY, NULL, parms,hWnd);LPDISPATCH IScriptControl:GetError()LPDISPATCH result;InvokeHelper(0x5e3, DISPATCH_PROPERTYGET, VT_DISPATCH, (vo

6、id*)&result, NULL);return result;void IScriptControl:AddObject(LPCTSTR Name, LPDISPATCH Object, BOOL AddMembers)static BYTE parms =VTS_BSTR VTS_DISPATCH VTS_BOOL;InvokeHelper(0x9c4, DISPATCH_METHOD, VT_EMPTY, NULL, parms, Name, Object, AddMembers);void IScriptControl:AddCode(LPCTSTR Code)static

7、BYTE parms =VTS_BSTR;InvokeHelper(0x7d0, DISPATCH_METHOD, VT_EMPTY, NULL, parms,Code);3、刪除類中不需要的IDispatch封裝的方法4、如果你想自己添加函數(shù)，可以用ClassWizard添加一個自動化類。ClasWizard將為IDispatch接口產(chǎn)生如下頭文件與執(zhí)行文件：/ ScriptControlMacroDispatch.h : interface of the/ CScriptControlMacroDispatch class/#if !defined(AFX_SCRIPTCONTROLMAC

8、RODISPATCH_H_FB55B5AF_00E5_47F5_B176_214B2C7BF19A_INCLUDED_)#define AFX_SCRIPTCONTROLMACRODISPATCH_H_FB55B5AF_00E5_47F5_B176_214B2C7BF19A_INCLUDED_#if _MSC_VER > 1000#pragma once#endif/ _MSC_VER > 1000/ CScriptControlMacroDispatch command targetclass CScriptControlMacroDispatch : public CCmdTa

9、rgetDECLARE_DYNCREATE(CScriptControlMacroDispatch)CScriptControlMacroDispatch(); / protected constructor used by dynamic creation/ Overrides/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CScriptControlMacroDispatch)/AFX_VIRTUAL/ Implementationprotected:/friend class CScriptControlMac

10、roView;/ Generated message map functions/AFX_MSG(CScriptControlMacroDispatch)/ NOTE - the ClassWizard will add and remove member/ functions here./AFX_MSGDECLARE_MESSAGE_MAP()/ Generated OLE dispatch map functions/AFX_DISPATCH(CScriptControlMacroDispatch)afx_msg void Test1();afx_msg void Test2();/AFX

11、_DISPATCHDECLARE_DISPATCH_MAP()DECLARE_INTERFACE_MAP();/ Note: we add support for IID_IScriptControlMacroDispatch/ to support typesafe binding from VBA. This IID must match/ the GUID that is attached to the dispinterface in the/ .ODL file./ 69AA5686-41AF-4CD9-AEAE-9DB88130E7C1static const IID IID_IS

12、criptControlMacroDispatch =0x69AA5686, 0x41AF, 0x4CD9, 0xAE, 0xAE, 0x9D, 0xB8,0x81, 0x30, 0xE7, 0xC1;/AFX_INSERT_LOCATION/ Microsoft Visual C+ will insert additional declarations/ immediately before the previous line.#endif/ !defined(AFX_SCRIPTCONTROLMACRODISPATCH_H_/ FB55B5AF_00E5_47F5_B176_214B2C7

13、BF19A_INCLUDED_)/ ScriptControlMacroDispatch.cpp : implementation of the/ CScriptControlMacroDispatch class/#include "stdafx.h"#include "ScriptControlMacroDispatch.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CScriptControlMacroDispat

14、chIMPLEMENT_DYNCREATE(CScriptControlMacroDispatch, CCmdTarget)CScriptControlMacroDispatch:CScriptControlMacroDispatch()EnableAutomation();BEGIN_MESSAGE_MAP(CScriptControlMacroDispatch, CCmdTarget)/AFX_MSG_MAP(CScriptControlMacroDispatch)/ NOTE - the ClassWizard will add and remove mapping/ macros he

15、re./AFX_MSG_MAPEND_MESSAGE_MAP()BEGIN_DISPATCH_MAP(CScriptControlMacroDispatch, CCmdTarget)/AFX_DISPATCH_MAP(CScriptControlMacroDispatch)DISP_FUNCTION(CScriptControlMacroDispatch,"Test1", Test1, VT_EMPTY, VTS_NONE)DISP_FUNCTION(CScriptControlMacroDispatch,"Test2", Test2, VT_EMPTY

16、, VTS_NONE)/AFX_DISPATCH_MAPEND_DISPATCH_MAP()BEGIN_INTERFACE_MAP(CScriptControlMacroDispatch, CCmdTarget)INTERFACE_PART(CScriptControlMacroDispatch, IID_IScriptControlMacroDispatch, Dispatch)END_INTERFACE_MAP()/ CScriptControlMacroDispatch message handlersvoid CScriptControlMacroDispatch:Test1()/ T

17、ODO: Add your dispatch handler code hereAfxMessageBox(CString(_T(""") + GetDispatchMap()->lpEntries->lpszName + _T("" method call ofthe "") + RUNTIME_CLASS(CScriptControlMacroDispatch)->m_lpszClassName+ _T("" class"), MB_ICONASTERISK);void C

18、ScriptControlMacroDispatch:Test2()/ TODO: Add your dispatch handler code hereAfxMessageBox(CString(_T(""") + GetDispatchMap()->lpEntries1.lpszName + _T("" methodcall of the "") + RUNTIME_CLASS(CScriptControlMacroDispatch)->m_lpszClassName+ _T("" class"), MB_ICONASTERISK);5、這樣在產(chǎn)生的代碼中已經(jīng)實現(xiàn)了一些自定義的東西a. 不必要的聲名和代碼已經(jīng)刪除b. 全局的應(yīng)用程序?qū)ο笠呀?jīng)聲名：extern CScriptControlMacroApp theAppc. MFC隱含函數(shù)聲