获取输入法列表

现在好多在CE下做开发的都不使用CE的界面，所以也无法使用系统提供的输入法切换的功能。

如何自己枚举输入法，显示在自己应用的界面中，供用户选择呢？

以前在CE5下研究过一段时间相关的东东，分享出来大家一起学习。以求有抛砖引玉的作用，小心哦，不要被砖拍到，嘿嘿...

主要是下面这个类，一个.h文件：

  1 /**************************************************************************** 
  2 * Copyright (C), 2006, Leo.Zheng 
  3 * File name：    InputOper.h 
  4 * Description：  CE 5.0 输入法列表的获得 
  5 * Version：      Version 0.1 
  6 * History：      Leo.Zheng   created   2007-10-15 
  7 *   ...... 
  8 *****************************************************************************/  
  9 #ifndef __INPUT_OPERATION_  
 10 #define __INPUT_OPERATION_  
 11 #include "stdafx.h"  
 12 #include "Afx.h"  
 13 #include "Winreg.h"  
 14 #define IDBufSize   30  
 15 #define NameBufSize 100  
 16 struct InputLink  
 17 {  
 18     TCHAR tcID[IDBufSize];      //输入法代号。  
 19     TCHAR tcName[NameBufSize];   //输入法的说明文字。  
 20     InputLink* pNext;  
 21 };  
 22 class CInputLanguage  
 23 {  
 24 private:  
 25     InputLink *m_pILHead;  
 26     //  
 27     bool ListAllIM()  
 28     {  
 29         HKEY hPreload;  
 30         HKEY hLayouts;  
 31         DWORD cp = IDBufSize;  
 32         TCHAR tcLp[IDBufSize];  
 33         TCHAR tcLpDefault[IDBufSize];  
 34         CString szID;  
 35         CString szValueName;  
 36         CString szProload = "Keyboard Layout//Preload"; // 输入法顺序  
 37         CString szLayouts = "System//CurrentControlSet//Control//Layouts//";  // 输入法名称  
 38         int i = 1;  
 39         DWORD lpT = REG_SZ;  
 40         // TCHAR tcBuffer[NameBufSize] = {0};  
 41         DWORD dwLen = 0;  
 42         LONG nRetValue = 0;  
 43           
 44         // 读默认的输入法  
 45         if(ERROR_SUCCESS == RegOpenKeyEx(HKEY_CURRENT_USER,szProload,0,0,&hPreload))  
 46         {  
 47             nRetValue = RegQueryValueEx(hPreload,TEXT(""),NULL,&lpT,(LPBYTE)tcLp,&cp);  
 48             if(ERROR_SUCCESS == nRetValue)  
 49             {  
 50                 wcscpy(tcLpDefault,tcLp);  
 51             }  
 52         }  
 53         // 读所有的输入法  
 54         szID.Format(TEXT("%s//%d"),szProload,i);  
 55           
 56         while(ERROR_SUCCESS == RegOpenKeyEx(HKEY_CURRENT_USER,szID,0,0,&hPreload))  
 57         {  
 58             szValueName.Format(TEXT("%s"),TEXT(""));  
 59             // RegEnumKeyEx(hPreload,0,tcBuffer,&dwLen,NULL,NULL,NULL,NULL);  
 60             if(ERROR_SUCCESS == RegQueryValueEx(hPreload,szValueName,NULL,&lpT,(LPBYTE)tcLp,&cp))  
 61             {  
 62                 CString szTempName;  
 63                 szTempName = szLayouts + (LPCTSTR)(LPTSTR)tcLp;  
 64                   
 65                 if(ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE,szTempName,0,0,&hLayouts))  
 66                 {  
 67                     TCHAR lpD[NameBufSize];  
 68                     DWORD lpS = NameBufSize; // DataSize  
 69                       
 70                     if(ERROR_SUCCESS == RegQueryValueEx(hLayouts,TEXT("Layout Text"),NULL,&lpT,(LPBYTE)lpD,&lpS))  
 71                     {  
 72                         InputLink *pOne = m_pILHead;  
 73                         InputLink *pTwo = (InputLink *)malloc(sizeof(struct InputLink));  
 74                           
 75                         wcscpy(pTwo->tcID,tcLp);  
 76                         wcscpy(pTwo->tcName,lpD);  
 77                         pTwo->pNext = NULL;  
 78                         if(pOne)  
 79                         {  
 80                             while(pOne->pNext)  
 81                             {  
 82                                 pOne = pOne->pNext;  
 83                             }  
 84                             pOne->pNext = pTwo;  
 85                         }  
 86                         else  
 87                         {  
 88                             m_pILHead = pTwo;  
 89                         }  
 90                     }  
 91                 }  
 92                 ::RegCloseKey(hLayouts);  
 93             }  
 94             i++;  
 95             szID.Format(TEXT("%s//%d"),szProload,i);  
 96         }  
 97           
 98         ::RegCloseKey(hPreload);  
 99         return (NULL != m_pILHead);  
100     }  
101     //  
102     void Clear()  
103     {  
104         InputLink *pOne = m_pILHead;  
105         InputLink *pTwo;  
106           
107         while(pOne)  
108         {  
109             pTwo = pOne;  
110             pOne = pOne->pNext;  
111             free(pTwo);  
112         }  
113         m_pILHead = NULL;  
114     }  
115 public:  
116     CInputLanguage()  
117     {  
118         m_pILHead = NULL;  
119         ListAllIM();  
120     }  
121     //  
122     ~CInputLanguage()  
123     {  
124         Clear();  
125     }  
126     //  
127     bool SelectInputIM(InputLink *pIL)  
128     {  
129         if(!pIL)  
130             return FALSE;  
131         HKL hkl;  
132           
133         hkl = LoadKeyboardLayout(pIL->tcID,KLF_ACTIVATE);    // 装载输入法  
134         if(NULL == hkl)  
135             return FALSE;  
136         else  
137         {  
138             ActivateKeyboardLayout(hkl,KLF_SETFORPROCESS);  // 激活输入法  
139         }  
140           
141         return TRUE;  
142     }  
143     //获得输入法信息链表头结点指针。  
144     InputLink* GetInputIMList()  
145     {  
146         return m_pILHead;  
147     }  
148 };  
149 #endif

调用示例：

 1 // TestIM.cpp : Defines the entry point for the application.  
 2 //  
 3 #include "stdafx.h"  
 4 #include "InputOper.h"  
 5 int WINAPI WinMain( HINSTANCE hInstance,  
 6                     HINSTANCE hPrevInstance,  
 7                     LPTSTR    lpCmdLine,  
 8                     int       nCmdShow)  
 9 {  
10     CInputLanguage *InputTest;  
11     InputLink *pLPList = NULL;  
12     InputLink *pTmpLPList = NULL;  
13     // TODO: Place code here.  
14     InputTest = new CInputLanguage();  
15     pLPList = InputTest->GetInputIMList();  
16       
17     pTmpLPList = pLPList;  
18     while(NULL != pTmpLPList)  
19     {  
20         //DrawText(hdc, pTmpLPList->tcName, NameBufSize, &rt,   
21         //  DT_SINGLELINE | DT_VCENTER | DT_CENTER);  
22         pTmpLPList = pTmpLPList->pNext;  
23         RETAILMSG(1,(L"SIP name of No.%d is %s/r/n",pTmpLPList->tcName));  
24     }  
25     InputTest->SelectInputIM(pTmpLPList);  
26     return 0;  
27 }