2008年(909)
分类:
2008-05-06 21:36:32
下载本文示例代码
代码运行效果图如下:
介绍
有时我们并不需要提供完整的脚本支持,就像本文所要介绍的ActiveX脚本宿主(script hosting,可能称为脚本引擎更好理解),本文提供的ScriptControlMacro程序展示了使用Microsoft脚本控件简单地实现脚本支持功能,代码中还包括了以下一些技术:
用文件映射实现只允许一个应用实例.
如何用MFC存储读取二进制注册表数据
如何保存恢复应用程序窗口尺寸,位置
如何在CEditView派生类中使用不同地字体
如何捕捉OLE异常并显示错误信息
等...
开始前的准备
这篇文章假定你已经对COM、ActiveX控件、OLE自动化有所熟悉,并知道如何在MFC里使用他们。因为这些技术包含了相当多的内容,因此你应该先学习一下这些内容再来看本文。
基本步骤:
1、建立一个提供ActiveX控件支持的新的MFC工程
2、使用ClassWizard从脚本控件类型库中建立一个dispatch类
ClassWizard将为脚本控件接口生成头文件与执行文件。
// Machine generated IDispatch wrapper class(es) created with // ClassWizard //////////////////////////////////////////////////////////// // IScriptControl wrapper class class IScriptControl : public COleDispatchDriver { // Operations public: 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 ClassWizard #include "stdafx.h" #include "MSScriptControl.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif //////////////////////////////////////////////////////////// // IScriptControl operations void IScriptControl::SetLanguage(LPCTSTR lpszNewValue) { static BYTE parms[] = VTS_BSTR; InvokeHelper(0x5dc, DISPATCH_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, (void*)&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 BYTE parms[] = VTS_BSTR; InvokeHelper(0x7d0, DISPATCH_METHOD, VT_EMPTY, NULL, parms, Code); }3、删除类中不需要的IDispatch封装的方法
// ScriptControlMacroDispatch.h : interface of the // CScriptControlMacroDispatch class // //////////////////////////////////////////////////////////// #if !defined(AFX_SCRIPTCONTROLMACRODISPATCH_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 target class CScriptControlMacroDispatch : public CCmdTarget { DECLARE_DYNCREATE(CScriptControlMacroDispatch) CScriptControlMacroDispatch(); // protected constructor used by dynamic creation // Overrides // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CScriptControlMacroDispatch) //}}AFX_VIRTUAL // Implementation protected: //friend class CScriptControlMacroView; // Generated message map functions //{{AFX_MSG(CScriptControlMacroDispatch) // NOTE - the ClassWizard will add and remove member // functions here. //}}AFX_MSG DECLARE_MESSAGE_MAP() // Generated OLE dispatch map functions //{{AFX_DISPATCH(CScriptControlMacroDispatch) afx_msg void Test1(); afx_msg void Test2(); //}}AFX_DISPATCH DECLARE_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-9DB88130E7C1} static const IID IID_IScriptControlMacroDispatch = {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_214B2C7BF19A__INCLUDED_) // ScriptControlMacroDispatch.cpp : implementation of the // CScriptControlMacroDispatch class // #include "stdafx.h" #include "ScriptControlMacroDispatch.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif //////////////////////////////////////////////////////////// // CScriptControlMacroDispatch IMPLEMENT_DYNCREATE(CScriptControlMacroDispatch, CCmdTarget) CScriptControlMacroDispatch::CScriptControlMacroDispatch() { EnableAutomation(); } BEGIN_MESSAGE_MAP(CScriptControlMacroDispatch, CCmdTarget) //{{AFX_MSG_MAP(CScriptControlMacroDispatch) // NOTE - the ClassWizard will add and remove mapping // macros here. //}}AFX_MSG_MAP END_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, VTS_NONE) //}}AFX_DISPATCH_MAP END_DISPATCH_MAP() BEGIN_INTERFACE_MAP(CScriptControlMacroDispatch, CCmdTarget) INTERFACE_PART(CScriptControlMacroDispatch, IID_IScriptControlMacroDispatch, Dispatch) END_INTERFACE_MAP() //////////////////////////////////////////////////////////// // CScriptControlMacroDispatch message handlers void CScriptControlMacroDispatch::Test1() { // TODO: Add your dispatch handler code here AfxMessageBox(CString(_T("\"")) GetDispatchMap()-> lpEntries->lpszName _T("\" method call of the \"") RUNTIME_CLASS( CScriptControlMacroDispatch)->m_lpszClassName _T("\" class"), MB_ICONASTERISK); } void CScriptControlMacroDispatch::Test2() { // TODO: Add your dispatch handler code here AfxMessageBox(CString(_T("\"")) GetDispatchMap()-> lpEntries[1].lpszName _T("\" method call of the \"") RUNTIME_CLASS( CScriptControlMacroDispatch)->m_lpszClassName _T("\" class"), MB_ICONASTERISK); }5、这样在产生的代码中已经实现了一些自定义的东西
//////////////////////////////////////////////////////////// // Win32 libraries // Start of customization #ifdef _UNICODE #pragma comment(linker, "/entry:wWinMainCRTStartup") #endif // End of customization7、为了在所有MFC工程中使用 _WIN32_WINDOWS=0x500 这个预定义,在AFXV_W32.H头文件中作了如下定制:
#ifndef ALL_WARNINGS #pragma warning(disable: 4201) // winnt.h uses nameless structs #endif // Start of customization #ifndef _WIN32_WINDOWS // End of customization #define _WIN32_WINDOWS 0x0500 // Start of customization #endif // End of customization