ime_wrap.cpp

   1 /*-----------------------------------------------------------------------------
   2  * File: ime_wrap.cpp
   3  *-----------------------------------------------------------------------------
   4  * Copyright (c) 2005       Kazuo Ishii <k-ishii@wb4.so-net.ne.jp>
   5  *                              - original version
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *---------------------------------------------------------------------------*/
  21 #include <windows.h>
  22 #include <imm.h>
  23
  24 static HMODULE gDll = NULL;
  25
  26 typedef HIMC (WINAPI* FN_GetContext)(HWND);
  27 typedef BOOL (WINAPI* FN_ReleaseContext)(HWND,HIMC);
  28 typedef BOOL (WINAPI* FN_GetOpenStatus)(HIMC);
  29 typedef BOOL (WINAPI* FN_SetCompositionFontW)(HIMC, LPLOGFONTW);
  30 typedef BOOL (WINAPI* FN_SetCompositionWindow)(HIMC, PCOMPOSITIONFORM);
  31
  32 static FN_GetContext            fn_GetContext    = NULL;
  33 static FN_ReleaseContext        fn_ReleaseContext       = NULL;
  34 static FN_GetOpenStatus         fn_GetOpenStatus        = NULL;
  35 static FN_SetCompositionFontW   fn_SetCompositionFontW  = NULL;
  36 static FN_SetCompositionWindow  fn_SetCompositionWindow = NULL;
  37
  38 HIMC WINAPI ImmGetContext(HWND hwnd)
  39 {
  40         if(fn_GetContext)
  41                 return( fn_GetContext(hwnd) );
  42         return(NULL);
  43 }
  44
  45 BOOL WINAPI ImmReleaseContext(HWND hwnd, HIMC imc)
  46 {
  47         if(fn_ReleaseContext)
  48                 return( fn_ReleaseContext(hwnd, imc) );
  49         return(FALSE);
  50 }
  51
  52 BOOL WINAPI ImmGetOpenStatus(HIMC imc)
  53 {
  54         if(fn_GetOpenStatus)
  55                 return( fn_GetOpenStatus(imc) );
  56         return(FALSE);
  57 }
  58
  59 BOOL WINAPI ImmSetCompositionFontW(HIMC imc, LPLOGFONTW lf)
  60 {
  61         if(fn_SetCompositionFontW)
  62                 return( fn_SetCompositionFontW(imc, lf) );
  63         return(FALSE);
  64 }
  65
  66 BOOL WINAPI ImmSetCompositionWindow(HIMC imc, PCOMPOSITIONFORM cf)
  67 {
  68         if(fn_SetCompositionWindow)
  69                 return( fn_SetCompositionWindow(imc, cf) );
  70         return(FALSE);
  71 }
  72
  73 #define GET_PROC(name) \
  74         if(result) { \
  75                 fn_##name = (FN_##name) GetProcAddress(gDll, "Imm" #name); \
  76                 if(! fn_##name) result = FALSE; \
  77         }
  78
  79 BOOL    ime_wrap_init()
  80 {
  81         BOOL result = TRUE;
  82         gDll = LoadLibraryA("imm32.dll");
  83         if(!gDll)
  84                 return(FALSE);
  85         GET_PROC( GetContext );
  86         GET_PROC( ReleaseContext );
  87         GET_PROC( GetOpenStatus );
  88         GET_PROC( SetCompositionFontW );
  89         GET_PROC( SetCompositionWindow );
  90         if(!result) {
  91                 fn_GetContext = NULL;
  92                 fn_ReleaseContext = NULL;
  93                 fn_GetOpenStatus = NULL;
  94                 fn_SetCompositionFontW = NULL;
  95                 fn_SetCompositionWindow = NULL;
  96                 FreeLibrary(gDll);
  97                 gDll = NULL;
  98         }
  99         return(result);
 100 }
 101
 102 void ime_wrap_term()
 103 {
 104         if (gDll) {
 105                 FreeLibrary(gDll);
 106                 gDll = NULL;
 107         }
 108 }
 109
 110 /* EOF */