--- libchewing-0.3.0/src/chewingio.c.4-bz216377	2006-11-21 15:45:08.000000000 +1000
+++ libchewing-0.3.0/src/chewingio.c	2006-11-21 15:45:08.000000000 +1000
@@ -860,6 +860,44 @@
 	return 0;
 }
 
+CHEWING_API int chewing_handle_PageUp( ChewingContext *ctx )
+{
+        ChewingData *pgdata = ctx->data;
+        ChewingOutput *pgo = ctx->output;
+        int keystrokeRtn = KEYSTROKE_ABSORB;
+
+        CheckAndResetRange( pgdata );
+
+        if ( ! ChewingIsEntering( pgdata ) ) {
+                keystrokeRtn = KEYSTROKE_IGNORE;
+        }
+        else if ( ! pgdata->bSelect ) { 
+                pgdata->chiSymbolCursor = pgdata->chiSymbolBufLen;
+                pgdata->cursor = pgdata->nPhoneSeq;
+        } 
+        MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
+        return 0;
+}
+
+CHEWING_API int chewing_handle_PageDown( ChewingContext *ctx )
+{
+        ChewingData *pgdata = ctx->data;
+        ChewingOutput *pgo = ctx->output;
+        int keystrokeRtn = KEYSTROKE_ABSORB;
+
+        CheckAndResetRange( pgdata );
+
+        if ( ! ChewingIsEntering( pgdata ) ) {
+                keystrokeRtn = KEYSTROKE_IGNORE;
+        }
+        else if ( ! pgdata->bSelect ) { 
+                pgdata->chiSymbolCursor = pgdata->chiSymbolBufLen;
+                pgdata->cursor = pgdata->nPhoneSeq;
+        } 
+        MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
+        return 0;
+}
+
 /* Dvorak <-> Qwerty keyboard layout converter */
 static int dvorak_convert( int key )
 {
--- libchewing-0.3.0/include/chewingio.h.4-bz216377	2006-11-21 15:45:46.000000000 +1000
+++ libchewing-0.3.0/include/chewingio.h	2006-11-21 15:45:03.000000000 +1000
@@ -37,6 +37,8 @@
 CHEWING_API int chewing_handle_Up( ChewingContext * );
 CHEWING_API int chewing_handle_Home( ChewingContext * );
 CHEWING_API int chewing_handle_End( ChewingContext * );
+CHEWING_API int chewing_handle_PageUp( ChewingContext * );
+CHEWING_API int chewing_handle_PageDown( ChewingContext * );
 CHEWING_API int chewing_handle_Down( ChewingContext * );
 CHEWING_API int chewing_handle_Capslock( ChewingContext * );
 CHEWING_API int chewing_handle_Default( ChewingContext *, int key );