riched20: Handle EM_FINDTEXT's unicode conversion in the host.

dlls/riched20/editor.c

@@ -4167,24 +4167,6 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
   {
     return editor->nTextLimit;
   }
-  case EM_FINDTEXT:
-  {
-    LRESULT r;
-    if(!unicode){
-      FINDTEXTA *ft = (FINDTEXTA *)lParam;
-      int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
-      WCHAR *tmp;
-
-      if ((tmp = heap_alloc(nChars * sizeof(*tmp))) != NULL)
-        MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
-      r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
-      heap_free(tmp);
-    }else{
-      FINDTEXTW *ft = (FINDTEXTW *)lParam;
-      r = ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
-    }
-    return r;
-  }
   case EM_FINDTEXTEX:
   {
     LRESULT r;
@@ -4203,6 +4185,7 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
     }
     return r;
   }
+  case EM_FINDTEXT:
   case EM_FINDTEXTW:
   {
     FINDTEXTW *ft = (FINDTEXTW *)lParam;

dlls/riched20/txthost.c

@@ -834,6 +834,22 @@ static LRESULT RichEditWndProc_common( HWND hwnd, UINT msg, WPARAM wparam,
             FillRect( hdc, &rc, editor->hbrBackground );
         return 1;
     }
+    case EM_FINDTEXT:
+    {
+        FINDTEXTW *params = (FINDTEXTW *)lparam;
+        FINDTEXTW new_params;
+        int len;
+
+        if (!unicode)
+        {
+            new_params.chrg = params->chrg;
+            new_params.lpstrText = ME_ToUnicode( CP_ACP, (char *)params->lpstrText, &len );
+            params = &new_params;
+        }
+        hr = ITextServices_TxSendMessage( host->text_srv, EM_FINDTEXTW, wparam, (LPARAM)params, &res );
+        if (!unicode) ME_EndToUnicode( CP_ACP, (WCHAR *)new_params.lpstrText );
+        break;
+    }
     case WM_GETTEXT:
     {
         GETTEXTEX params;