patch 8.0.0018
Problem:    When using ":sleep" channel input is not handled.
Solution:   When there is a channel check for input also when not in raw mode.
            Check every 100 msec.
diff --git a/src/proto/os_win32.pro b/src/proto/os_win32.pro
index 19c59ec..4e6af5b 100644
--- a/src/proto/os_win32.pro
+++ b/src/proto/os_win32.pro
@@ -48,7 +48,7 @@
 void mch_write(char_u *s, int len);
 void mch_delay(long msec, int ignoreinput);
 int mch_remove(char_u *name);
-void mch_breakcheck(void);
+void mch_breakcheck(int force);
 long_u mch_total_mem(int special);
 int mch_wrename(WCHAR *wold, WCHAR *wnew);
 int mch_rename(const char *pszOldFile, const char *pszNewFile);