Allow range for X11VNC_SKIP_DISPLAY, document grab

Xserver issue.  Add progress_client() to proceed more quickly
thru handshake.  Improvements to turbovnc hack.

1 files changed, 17 insertions, 4 deletions

diff --git a/x11vnc/help.c b/x11vnc/help.c
index 48e19ca..e701cf4 100644
--- a/x11vnc/help.c
+++ b/x11vnc/help.c
@@ -1090,12 +1090,21 @@ void print_help(int mode) {
 "                       As a special case, WAIT:cmd=FINDDISPLAY will run a\n"
 "                       script that works on most Unixes to determine a user's\n"
 "                       DISPLAY variable and xauthority data (see who(1)).\n"
+"                       The option \"-find\" is an alias for this mode.\n"
 "\n"
 "                       To have this default script printed to stdout (e.g. for\n"
 "                       customization) run with WAIT:cmd=FINDDISPLAY-print To\n"
 "                       have the script run to print what display it would find\n"
 "                       use \"-finddpy\" or WAIT:cmd=FINDDISPLAY-run\n"
 "\n"
+"                       The standard script runs xdpyinfo(1) run on potential\n"
+"                       displays.  If your X server(s) have a login greeter\n"
+"                       that exclusively grabs the Xserver, then xdpyinfo\n"
+"                       blocks forever and this mode will not work.  See\n"
+"                       www.karlrunge.com/x11vnc/faq.html#faq-display-manager\n"
+"                       for how to disable this for dtgreet on Solaris and\n"
+"                       possibly for other greeters.\n"
+"\n"
 "                       As another special case, WAIT:cmd=HTTPONCE will allow\n"
 "                       x11vnc to service one http request and then exit.\n"
 "                       This is usually done in -inetd mode to run on, say,\n"
@@ -1109,10 +1118,12 @@ void print_help(int mode) {
 "                       Where /.../x11vnc is the full path to x11vnc.\n"
 "                       It is used in the Apache SSL-portal example (see FAQ).\n"
 "\n"
-"                       In this mode you can set X11VNC_SKIP_DISPLAY to a comma\n"
-"                       separated list of displays (e.g. \":0,:1\") to ignore\n"
-"                       in the finding process.  This can also be set by the\n"
-"                       user via \"nd=\" using \"-\" instead of \",\"\n"
+"                       In this mode you can set X11VNC_SKIP_DISPLAY to a\n"
+"                       comma separated list of displays (e.g. \":0,:1\") to\n"
+"                       ignore in the finding process.  The \":\" is optional.\n"
+"                       Ranges n-m e.g. 0-20 can also be supplied. This string\n"
+"                       can also be set by the connecting user via \"nd=\"\n"
+"                       using \"+\" instead of \",\"\n"
 "\n"
 "                       An interesting option is WAIT:cmd=FINDCREATEDISPLAY\n"
 "                       that is like FINDDISPLAY in that is uses the same method\n"
@@ -1121,6 +1132,8 @@ void print_help(int mode) {
 "                       for the user.  This is the only time x11vnc tries to\n"
 "                       actually start up an X server.\n"
 "\n"
+"                       The option \"-create\" is an alias for this mode.\n"
+"\n"
 "                       It will start looking for an open display number at :20\n"
 "                       Override via X11VNC_CREATE_STARTING_DISPLAY_NUMBER=n\n"
 "\n"