使用系统输入法
//******************************************************************//
//
// 做这个东西的时候得到了论坛上网友的热心帮助，整理之后再送给大家
// 这是个在DX程序下使用系统输入法的解决方案，可能有little bug :-)
// 不过还没发现，如果发现了，告诉我啊 jerrywang@163.net
// 程序中使用的CHK()CHKB()是为了监测内存泄漏，可以去掉，CTTFFONT
// 为显示信息用，可以用其他方法替换如 TxtOut() 等
//
//******************************************************************//
//////////////////////////////////////////////////////////////////////
//
// IM.h: CIM class (使用系统)输入法类
// 2001/4/30 Write by Jerry Wang
// 感谢大大鱼的帮助
// Need Lib: imm32.lib
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_IM_H__6887B165_972D_4D17_8A75_FE07930CE59C__INCLUDED_)
#define AFX_IM_H__6887B165_972D_4D17_8A75_FE07930CE59C__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#define _CIM_MAXINPUTCHARNUMBER 24 //最多输入的字节数
#include "FindMe.h"
class CIM
{
private:
CTTFFont ttffont; //显示信息
LPCANDIDATELIST m_lpCandList; //输入法候选文字列表
LPSTR m_lpszImeInput; //指向IME输入的文字字符串指针
LPSTR m_lpszCurInputLanguageDesc; //指向当前输入语言描述的指针
char m_cCandidateList[255]; //候选文字列表缓冲区
char m_cInput[64]; //输入的字母
BOOL CandidateToString( LPCANDIDATELIST lpCandidateList ); //转换候选文字列表到字符串
public:
CIM();
virtual ~CIM();
LPSTR GetResultString( void ); //取得输入的字符串
void UpdateShow( ); //显示输入法信息
LPSTR GetCurInputLanguageDesc( ); //取得应用程序当前使用语言的描述
void ClearCandidateList( void ); //清除输入法文字候选列表
BOOL GetCandidateList( HWND hWnd ); //取得输入法文字候选列表
BOOL ImeIsOpen( void ); //输入法是否打开
void OnChar( TCHAR ch ); //处理WM_IME_CHAR消息
void OnImeNotify( HWND hWnd,WPARAM wParam ); //处理WM_IME_NOTIFY消息
void OnImeComposition( HWND hWnd, LPARAM lParam ); //处理WM_IME_COMPOSITION消息
};
#endif // !defined(AFX_IM_H__6887B165_972D_4D17_8A75_FE07930CE59C__INCLUDED_)
//*********************************************************************************************//
//////////////////////////////////////////////////////////////////////
//
// IM.cpp: CIM class (使用系统)输入法类
// 2001/4/30 Write by Jerry Wang
// 感谢大大鱼的帮助
// Need Lib: imm32.lib
//
//////////////////////////////////////////////////////////////////////
#include "imm.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CIM::CIM()
{
m_lpszImeInput = new char[_CIM_MAXINPUTCHARNUMBER];
ZeroMemory( m_lpszImeInput,_CIM_MAXINPUTCHARNUMBER );
*m_lpszImeInput = '\0';
*m_cInput = '\0';
ttffont.Create( "黑体",15,RGB(255,255,255) );
GetCurInputLanguageDesc();
}
CIM::~CIM()
{
ZeroMemory( m_lpszImeInput,_CIM_MAXINPUTCHARNUMBER );
CHKB( delete m_lpszImeInput );
if( m_lpszCurInputLanguageDesc != NULL )
CHKB( delete m_lpszCurInputLanguageDesc );
}
void CIM::OnImeComposition(HWND hWnd, LPARAM lParam)
{
if (lParam & GCS_RESULTSTR)
{
HIMC hIMC; //输入设备上下文
DWORD dwLen;
LPSTR lpResultStr;
hIMC = ImmGetContext(hWnd); //取得输入上下文
if (!hIMC)
return;
dwLen = ImmGetCompositionString(hIMC,GCS_RESULTSTR,NULL,0L);
dwLen+=1;
if(dwLen)
{
lpResultStr = new char[ dwLen ];
//// 缓冲区已经满了
if( strlen( m_lpszImeInput ) + dwLen > _CIM_MAXINPUTCHARNUMBER - 2 )
{
MessageBeep( 0 );
return;
}
ZeroMemory( lpResultStr ,dwLen );
if (lpResultStr)
{
ImmGetCompositionString(hIMC,GCS_RESULTSTR, lpResultStr,dwLen);
strcat( m_lpszImeInput,lpResultStr );
}
delete lpResultStr;
}
ImmReleaseContext(hWnd,hIMC); //释放输入上下文
}
}
void CIM::OnImeNotify(HWND hWnd, WPARAM wParam)
{
DWORD dwCommand = (DWORD) wParam;
switch( dwCommand )
{
case IMN_CHANGECANDIDATE:
GetCandidateList( hWnd );
break;
case IMN_CLOSECANDIDATE:
ClearCandidateList();
break;
case IMN_OPENCANDIDATE:
GetCandidateList( hWnd );
break;
}
}
void CIM::OnChar( TCHAR ch )
{
int len = strlen( m_lpszImeInput );
if( ImeIsOpen() ) //输入法打开状态
{
}
else //输入法关闭状态
{
if( ch >= 32 && ch < 128 && len < _CIM_MAXINPUTCHARNUMBER - 1 ) //输入的是英文字母
{
*( m_lpszImeInput + len ) = ch;
*( m_lpszImeInput + len + 1) = '\0';
}
}
if( ch == 8 ) //BackSpace字符
{
if( len == 0 ) //字符串长度为零
return;
if( len == 1 ) //只有一个字符
{
*m_lpszImeInput = '\0';
return;
}
BYTE cc1,cc2;
cc1 = *(m_lpszImeInput + len -1); //分离字节
cc2 = *(m_lpszImeInput + len -2);
if( cc1 > 0xA0 && cc2 > 0xA0 ) //中文双字节的每个字节都>0xA0
*( m_lpszImeInput + len -2 ) = '\0';
else //是英文字符(单字节)
*( m_lpszImeInput + len -1 ) = '\0';
}
}
BOOL CIM::GetCandidateList(HWND hWnd)
{
DWORD dwSize;
HIMC hIMC;
ZeroMemory( m_cCandidateList,sizeof(m_cCandidateList) );
if( m_lpCandList )
{
delete m_lpCandList;
m_lpCandList = NULL;
}
if( GetKeyboardLayout(0)==0 )
{
return FALSE;
}
hIMC = ImmGetContext(hWnd); //取得输入上下文
if(hIMC == NULL)
{
return FALSE;
}
ZeroMemory( m_cCandidateList,sizeof(m_cCandidateList) );
if(dwSize = ImmGetCandidateList(hIMC,0x0,NULL,0))
{
m_lpCandList = (LPCANDIDATELIST)new char[dwSize];
if(m_lpCandList)
{
ImmGetCandidateList(hIMC,0x0,m_lpCandList,dwSize);
CandidateToString(m_lpCandList);
}
}
ImmReleaseContext(hWnd,hIMC);
return TRUE;
}
void CIM::ClearCandidateList()
{
if(m_lpCandList)
{
delete m_lpCandList;
m_lpCandList = NULL;
}
ZeroMemory( m_cCandidateList,sizeof( m_cCandidateList ) );
}
LPSTR CIM::GetCurInputLanguageDesc()
{
HKL hKL = GetKeyboardLayout(0);
if( m_lpszCurInputLanguageDesc != NULL )
CHKB( delete m_lpszCurInputLanguageDesc ); //删除先 ^o^
int lengh = ImmGetDescription(hKL,NULL,0); //取得描述的长度
CHK( m_lpszCurInputLanguageDesc = new char[ lengh ] );
if( lengh )
{
ImmGetDescription(hKL,m_lpszCurInputLanguageDesc,lengh);
}
else
{
strcpy( m_lpszCurInputLanguageDesc,"输入法关闭" );
}
return m_lpszCurInputLanguageDesc;
}
void CIM::UpdateShow()
{
POINT pt;
pt.y = 450;
pt.x = 400;
ttffont.SetSurface( DD_GetBackScreen() );
ttffont.ShowText( m_lpszCurInputLanguageDesc,&pt,RGB( 255,255,0 )); //显示输入法描述
pt.y = 420;
pt.x = 20;
ttffont.ShowText( m_cCandidateList,&pt );
pt.y = 450;
pt.x = 20;
if( *m_lpszImeInput == '\0' )
return;
ttffont.ShowText( m_lpszImeInput,&pt,RGB( 255,255,0 )); //输入的文字
}
LPSTR CIM::GetResultString()
{
return m_lpszImeInput;
}
BOOL CIM::CandidateToString(LPCANDIDATELIST lpCandidateList)
{
if( !m_lpCandList )
return FALSE;
if( m_lpCandList->dwCount>0 )
{
LPDWORD lpdwOffset;
lpdwOffset = &m_lpCandList->dwOffset[0];
lpdwOffset += m_lpCandList->dwPageStart;
ZeroMemory( m_lpCandList,sizeof( m_lpCandList ) );
DWORD z=1;
for (DWORD i = m_lpCandList->dwPageStart; (i < lpCandidateList->dwCount) && (i < m_lpCandList->dwPageStart + m_lpCandList->dwPageSize); i++)
{
LPSTR lpstr = (LPSTR)m_lpCandList + *lpdwOffset++;
char buf[255];
sprintf( buf,"%d.%s",z,lpstr );
strcat( m_cCandidateList,buf );
z++;
}
return TRUE;
}
return FALSE;
}
BOOL CIM::ImeIsOpen()
{
return ImmIsIME( GetKeyboardLayout(0) );
}
