putty IME patch

window.c.patch

diff -r cd645c82db8b -r 7384a4f0d802 windows/window.c
--- a/windows/window.c  Thu Oct 23 16:17:24 2014 +0900
+++ b/windows/window.c  Wed Sep 09 16:49:18 2015 +0900
@@ -3509,6 +3509,14 @@
         * WARNING: Spans over multiple CASEs
         */
       case WM_KEYDOWN:
+       if (wParam == VK_ESCAPE) {
+           HIMC hImc = ImmGetContext(hwnd);
+           if (ImmGetOpenStatus(hImc)) {
+               ImmSetConversionStatus(hImc, IME_CMODE_ALPHANUMERIC, IME_SMODE_NONE);
+               ImmReleaseContext(hwnd, hImc);
+               goto KEY_END;
+           }
+       }
        if (wParam == VK_CONTROL && conf_get_int(term->conf, CONF_url_ctrl_click)) {
            GetCursorPos(&cursor_pt);
            ScreenToClient(hwnd, &cursor_pt);