diff --git a/src/gui/Window.cc b/src/gui/Window.cc
index 8b5dffb..7d4b638 100644
--- a/src/gui/Window.cc
+++ b/src/gui/Window.cc
@@ -205,6 +205,9 @@ void Window::handle_event(SDL_Event & event)
 
     case SDL_KEYDOWN:
         m_keymod = event.key.keysym.mod;
+        {
+            uint32_t keyval = get_keyval(event.key.keysym.sym);
+        }
         if (event.key.repeat == 0)
         {
             Key_Statuses[event.key.keysym.scancode].pressed = true;
@@ -216,6 +219,9 @@ void Window::handle_event(SDL_Event & event)
 
     case SDL_KEYUP:
         m_keymod = event.key.keysym.mod;
+        {
+            uint32_t keyval = get_keyval(event.key.keysym.sym);
+        }
         Key_Statuses[event.key.keysym.scancode].pressed = false;
         if (Key_Statuses[event.key.keysym.scancode].timer_id != 0)
         {
@@ -546,3 +552,68 @@ void Window::insertion_test()
     m_buffer->piece_table->insertion_test(*m_cursor);
     redraw();
 }
+
+uint32_t Window::get_keyval(SDL_Keycode keysym)
+{
+    uint32_t keyval = keysym;
+    if ((m_keymod & (KMOD_SHIFT | KMOD_CAPS)) != 0u)
+    {
+        uint32_t shifted = get_shifted(keyval);
+        if (shifted != keyval)
+        {
+            keyval = shifted;
+        }
+        else
+        {
+            keyval |= KEYMOD_SHIFT;
+        }
+    }
+    if ((m_keymod & KMOD_CTRL) != 0u)
+    {
+        keyval |= KEYMOD_CTRL;
+    }
+    if ((m_keymod & KMOD_ALT) != 0u)
+    {
+        keyval |= KEYMOD_ALT;
+    }
+    if ((m_keymod & KMOD_GUI) != 0u)
+    {
+        keyval |= KEYMOD_GUI;
+    }
+    return keyval;
+}
+
+uint32_t Window::get_shifted(uint32_t keysym)
+{
+    if ((keysym >= 'a') && (keysym <= 'z'))
+    {
+        return keysym - ('a' - 'A');
+    }
+
+    switch (keysym)
+    {
+    case SDLK_QUOTE:        return '"';
+    case SDLK_COMMA:        return '<';
+    case SDLK_MINUS:        return '_';
+    case SDLK_PERIOD:       return '>';
+    case SDLK_SLASH:        return '?';
+    case SDLK_0:            return ')';
+    case SDLK_1:            return '!';
+    case SDLK_2:            return '@';
+    case SDLK_3:            return '#';
+    case SDLK_4:            return '$';
+    case SDLK_5:            return '%';
+    case SDLK_6:            return '^';
+    case SDLK_7:            return '&';
+    case SDLK_8:            return '*';
+    case SDLK_9:            return '(';
+    case SDLK_SEMICOLON:    return ':';
+    case SDLK_EQUALS:       return '+';
+    case SDLK_LEFTBRACKET:  return '{';
+    case SDLK_BACKSLASH:    return '|';
+    case SDLK_RIGHTBRACKET: return '}';
+    case SDLK_BACKQUOTE:    return '~';
+    }
+
+    return keysym;
+}
diff --git a/src/gui/Window.h b/src/gui/Window.h
index 427bac6..62f09dc 100644
--- a/src/gui/Window.h
+++ b/src/gui/Window.h
@@ -27,6 +27,14 @@ protected:
         CURSOR_EOL,
     };
 
+    enum
+    {
+        KEYMOD_CTRL  = 0x10000,
+        KEYMOD_ALT   = 0x20000,
+        KEYMOD_SHIFT = 0x40000,
+        KEYMOD_GUI   = 0x80000,
+    };
+
     void resize();
     void redraw();
     void draw_cursor(int screen_column, int screen_row);
@@ -43,6 +51,8 @@ protected:
     void draw_rect(int x, int y, int width, int height, float r, float g, float b, float a);
     void draw_status_bar();
     void insertion_test();
+    uint32_t get_keyval(SDL_Keycode keysym);
+    uint32_t get_shifted(uint32_t keysym);
 
     SDL_Window * m_window;
     bool m_exit_requested;