从CEdit派生类，在激活输入是切换输入法为默认输入法

#pragma once// EditEx.h : header file///////////////////////////////////////////////////////////////////////////////// CEditEx windowclass CEditEx : public CEdit{// Constructionpublic:CEditEx();// Attributespublic:// Operationspublic:// Overrides// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CEditEx)protected:virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);//}}AFX_VIRTUAL// Implementationpublic:virtual ~CEditEx();// Generated message map functionsprotected://{{AFX_MSG(CEditEx)afx_msg void OnSetfocus();afx_msg void OnKillfocus();//}}AFX_MSGDECLARE_MESSAGE_MAP()protected:HKL m_DefaultHKL;HKL m_Saved_KbdLayout;HKL GetDefault_KbdLayout();public:BOOL bLockKbdLayout; //锁定输入法};

 

// EditEx.cpp : implementation file//#include "stdafx.h"#include "EditEx.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CEditExCEditEx::CEditEx(){m_DefaultHKL = GetDefault_KbdLayout();m_Saved_KbdLayout = 0; bLockKbdLayout = TRUE;}CEditEx::~CEditEx(){}BEGIN_MESSAGE_MAP(CEditEx, CEdit)//{{AFX_MSG_MAP(CEditEx)ON_CONTROL_REFLECT(EN_SETFOCUS, OnSetfocus)ON_CONTROL_REFLECT(EN_KILLFOCUS, OnKillfocus)//}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CEditEx message handlersvoid CEditEx::OnSetfocus() {// TODO: Add your control notification handler code hereif(m_DefaultHKL){HKL CurKbdLayout = GetKeyboardLayout(0);if(CurKbdLayout != m_DefaultHKL){m_Saved_KbdLayout = CurKbdLayout; //保存输入法if(ActivateKeyboardLayout(m_DefaultHKL, 0) == 0) //设置为默认输入法 { TRACE( _T("Set ActivateKeyboardLayout Err=%d"), GetLastError()); }}}}void CEditEx::OnKillfocus() {// TODO: Add your control notification handler code hereif(m_Saved_KbdLayout) //恢复输入法{if(ActivateKeyboardLayout(m_Saved_KbdLayout, 0) == 0) TRACE( _T("Restore ActivateKeyboardLayout Err=%d"), GetLastError()); m_Saved_KbdLayout = 0;}}HKL CEditEx::GetDefault_KbdLayout(){ HKL HKL_Ret= 0; int nSize = GetKeyboardLayoutList(0 , 0); if(nSize != 0) { HKL FAR * lpList = (HKL FAR *)new HKL[nSize]; ZeroMemory(lpList, sizeof(HKL) * nSize); if(GetKeyboardLayoutList(nSize, lpList) == nSize) { for(int i=0; i<nSize; i++) { HKL Val = lpList[i]; if(HIWORD(Val) == LOWORD(Val)) HKL_Ret = Val; TRACE( _T("0x%08X/n"), Val); } } delete []lpList; } return HKL_Ret;}LRESULT CEditEx::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) {// TODO: Add your specialized code here and/or call the base classif(WM_INPUTLANGCHANGEREQUEST == message) //输入法改变{ if(bLockKbdLayout) //锁定输入法 return 0; m_Saved_KbdLayout = 0; //接受该变且不需要恢复输入法 }return CEdit::WindowProc(message, wParam, lParam);}