--- a/src/ime_pinyin.c	2018-10-10 19:52:28.000000000 +0800
+++ b/src/ime_pinyin.c	2018-10-10 19:56:29.000000000 +0800
@@ -330,7 +330,7 @@
 
     lenth =0;
     {
-        sprintf (lookfor_bk, "%s", lookfor);
+        /*sprintf (lookfor_bk, "%s", lookfor);*/
         bzero (seltab, 16*MAX_PHRASE_LENGTH);
         putstr ((unsigned char *)lookfor);
         page =0;
@@ -478,13 +478,16 @@
             key = cur_table->KeyMap[(int)(*(strokes+idex))];
             InpKey [InputCount++] = key;
         }
-
+        if(len == 0){
+            return -1;
+	}else{
         FindMatchKey ();
         CurrentPageIndex = StartKey;
         MultiPageMode    = 1;
         FillMatchChars(StartKey);
         if (InputMatch<InputCount)
             return -1;
+        }
     }
 
     lensum  =0;
--- a/src/softkeyboard/softkeyboard/en_kbd.c	2018-10-10 19:52:28.000000000 +0800
+++ b/src/softkeyboard/softkeyboard/en_kbd.c	2018-10-10 19:53:31.000000000 +0800
@@ -422,7 +422,7 @@
     vw->clear_elements  = vw_clear_elements;
     vw->get_element     = vw_get_element;
 
-    vw->view_font = CreateLogFontByName ("*-fixed-rrncnn-*-14-ISO8859-1");
+    vw->view_font = CreateLogFontByName ("*-fixed-rrncnn-*-24-GB2312");
 #if 0
     vw->view_font = CreateLogFont ("ttf", fontname, "ISO8859-1",
             FONT_WEIGHT_REGULAR,
@@ -501,7 +501,7 @@
 
     memset(sw->str, 0, SW_STR_LEN);
 
-    sw->stroke_font = CreateLogFontByName ("*-fixed-rrncnn-*-9-ISO8859-1");
+    sw->stroke_font = CreateLogFontByName ("*-fixed-rrncnn-*-24-GB2312");
 #if 0
     sw->stroke_font = CreateLogFont ("rbf", "fixed", "ISO8859-1",
                         FONT_WEIGHT_REGULAR, FONT_SLANT_ROMAN,
--- a/src/softkeyboard/softkeyboard/pinyin_kbd.c	2018-10-10 19:52:28.000000000 +0800
+++ b/src/softkeyboard/softkeyboard/pinyin_kbd.c	2018-10-10 19:54:38.000000000 +0800
@@ -373,7 +373,7 @@
     vw->get_element = vw_get_element;
 
 
-    vw->view_font = CreateLogFontByName ("*-fixed-rrncnn-*-12-GB2312");
+    vw->view_font = CreateLogFontByName ("*-fixed-rrncnn-*-24-GB2312");
 #if 0
     vw->view_font = CreateLogFontByName (NULL, fontname, "GB2312",
             FONT_WEIGHT_BOLD,
@@ -464,7 +464,7 @@
                         FONT_UNDERLINE_NONE, FONT_STRUCKOUT_NONE,
                         9, 0);
 #endif
-    sw->stroke_font = CreateLogFontByName ("*-times-rrncnn-*-9-ISO8859-1");
+    sw->stroke_font = CreateLogFontByName ("*-fixed-rrncnn-*-24-GB2312");
     if (NULL == sw->stroke_font){
         _MY_PRINTF("create logfont for stroke window error.\n");
         return -1;