win32 port: fix lwip_win32_keypressed()

9 years ago · b4fbf5aca9
1 changed files with 2 additions and 2 deletions
--- a/ports/win32/sys_arch.c
+++ b/ports/win32/sys_arch.c
@ -600,13 +600,13 @@ int lwip_win32_keypressed(void)
  DWORD num = 0;
  HANDLE h = GetStdHandle(STD_INPUT_HANDLE);
  BOOL ret = PeekConsoleInput(h, &rec, 1, &num);
-  if (ret) {
+  if (ret && num) {
+    ReadConsoleInput(h, &rec, 1, &num);
    if(rec.EventType == KEY_EVENT) {
      if(rec.Event.KeyEvent.bKeyDown) {
        return 1;
      }
    }
-    ReadConsoleInput(h, &rec, 1, &num);
  }
  return 0;
 }