x11vnc: -8to24 more speedups; tunables for very slow machines.

1 files changed, 12 insertions, 0 deletions

diff --git a/x11vnc/help.c b/x11vnc/help.c
index 3a558cd..692276a 100644
--- a/x11vnc/help.c
+++ b/x11vnc/help.c
@@ -209,6 +209,18 @@ void print_help(int mode) {
 "                       \"poll=t\" where \"t\" is a floating point time.\n"
 "                       (default: %.2f)\n"
 "\n"
+"                       Setting the option \"level2\" will limit the search\n"
+"                       for non-default visual windows to two levels from the\n"
+"                       root window.  Do this on slow machines where you know\n"
+"                       the window manager only imposes one extra window between\n"
+"                       the app window and the root window.\n"
+"\n"
+"                       Also for very slow machines use \"cachewin=t\"\n"
+"                       where t is a floating point amount of time to cache\n"
+"                       XGetWindowAttributes results.  E.g. cachewin=5.0.\n"
+"                       This may lead to the windows being unnoticed for this\n"
+"                       amount of time when deiconifying, painting errors, etc.\n"
+"\n"
 "                       Debugging for this mode can be enabled by setting \n"
 "                       \"dbg=1\", \"dbg=2\", or \"dbg=3\".\n"
 "\n"