>Hi Tyran!
>
>Terrific! Thanks for your help, you've solved one of my 2 problems.
>How did you know about those DWORDs? They do not get inserted by
>default.
>Perhaps there's one for disabling the "Kill Clients", eh!
>If I ever figure that one out, I'd call you all across the continents to
>let you know.

You can get a complete list of registry entries by looking at the source.
see vncProperties.cpp. (I've attached the file from 1.2.1 in this mail)
search for "vncProperties::Load" and go down a bit:

        vnclog.SetMode(LoadInt(hkLocal, "DebugMode", 0));

vnclog.SetLevel(LoadInt(hkLocal, "DebugLevel", 0));

        // Disable Tray Icon

m_server->SetDisableTrayIcon(LoadInt(hkLocal, "DisableTrayIcon", false));


// Authentication required, loopback allowed, loopbackOnly

m_server->SetLoopbackOnly(LoadInt(hkLocal, "LoopbackOnly", false));
        if
(m_server->LoopbackOnly())
                m_server->SetLoopbackOk(true);
        else

m_server->SetLoopbackOk(LoadInt(hkLocal, "AllowLoopback", false));

m_server->SetAuthRequired(LoadInt(hkLocal, "AuthRequired", true));

m_server->SetConnectPriority(LoadInt(hkLocal, "ConnectPriority", 2));

Here you see some values read from the registry.
But you'll have to be careful where the data is read from: see the
"hkLocal" in the calls above. They're going to different registry keys:
hkLocal is HKEY_LOCAL_MACHINE/Software/ORL/WinVNC3
hkLocalUser is HKEY_LOCAL_MACHINE/Software/ORL/WinVNC3/<USERNAME or SYSTEM>
hkDefault is HKEY_LOCAL_MACHINE/Software/ORL/WinVNC3/Default
hkGlobalUser is HKEY_CURRENT_USER/Software/ORL/WinVNC3
IIRC.

You'll find some interesting settings there.

AFAIK there's nothing to disable "kill all clients", but you can remove the
whole menue or even the icon in the taskbar.


Hope that helps!


Regards,

Phil
//  Copyright (C) 2000 Tridia Corporation. All Rights Reserved.
//  Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
//
//  This file is part of the VNC system.
//
//  The VNC system is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
//  USA.
//
// TightVNC distribution homepage on the Web: http://www.tightvnc.com/
//
// If the source code for the VNC system is not available from the place
// whence you received this file, check http://www.uk.research.att.com/vnc or
contact
// the authors on [EMAIL PROTECTED] for information on obtaining it.


// vncProperties.cpp

// Implementation of the Properties dialog!

#include "stdhdrs.h"
#include "lmcons.h"
#include "vncService.h"

#include "WinVNC.h"
#include "vncProperties.h"
#include "vncAdvancedProperties.h"
#include "vncServer.h"
#include "vncPasswd.h"

const char WINVNC_REGISTRY_KEY [] = "Software\\ORL\\WinVNC3";
const char NO_PASSWORD_WARN [] = "WARNING : Running WinVNC without setting a
password is "
                                                                "a dangerous security 
risk!\n"
                                                                "Until you set a 
password, WinVNC will not accept incoming
connections.";
const char NO_OVERRIDE_ERR [] = "This machine has been preconfigured with
WinVNC settings, "
                                                                "which cannot be 
overridden by individual users.  "
                                                                "The preconfigured 
settings may be modified only by a System
Administrator.";
const char NO_PASSWD_NO_OVERRIDE_ERR [] =
                                                                "No password has been 
set & this machine has been "
                                                                "preconfigured to 
prevent users from setting their own.\n"
                                                                "You must contact a 
System Administrator to configure WinVNC
properly.";
const char NO_PASSWD_NO_OVERRIDE_WARN [] =
                                                                "WARNING : This 
machine has been preconfigured to allow
un-authenticated\n"
                                                                "connections to be 
accepted and to prevent users from enabling
authentication.";
const char NO_PASSWD_NO_LOGON_WARN [] =
                                                                "WARNING : This 
machine has no default password set.  WinVNC will
present the "
                                                                "Default Properties 
dialog now to allow one to be entered.";
const char NO_CURRENT_USER_ERR [] = "The WinVNC settings for the current user
are unavailable at present.";
const char CANNOT_EDIT_DEFAULT_PREFS [] = "You do not have sufficient
priviliges to edit the default local WinVNC settings.";

// Constructor & Destructor
vncProperties::vncProperties()
{
        m_allowproperties = TRUE;
        m_allowshutdown = TRUE;
        m_dlgvisible = FALSE;
        m_usersettings = TRUE;
        m_inadvanced = FALSE;
}

vncProperties::~vncProperties()
{
}

// Initialisation
BOOL
vncProperties::Init(vncServer *server)
{
        // Save the server pointer
        m_server = server;

        m_inadvanced = FALSE;

        // Load the settings from the registry
        Load(TRUE);

        // If the password is empty then always show a dialog
        char passwd[MAXPWLEN];
        m_server->GetPassword(passwd);
        {
            vncPasswd::ToText plain(passwd);
            if (strlen(plain) == 0)
                        if (!m_allowproperties) {
                                if(m_server->AuthRequired()) {
                                        MessageBox(NULL, NO_PASSWD_NO_OVERRIDE_ERR,
                                                                "WinVNC Error",
                                                                MB_OK | MB_ICONSTOP);
                                        PostQuitMessage(0);
                                } else {
                                        MessageBox(NULL, NO_PASSWD_NO_OVERRIDE_WARN,
                                                                "WinVNC Error",
                                                                MB_OK | 
MB_ICONEXCLAMATION);
                                }
                        } else {
                                // If null passwords are not allowed, ensure that one 
is entered!
                                if (m_server->AuthRequired()) {
                                        char username[UNLEN+1];
                                        if (!vncService::CurrentUser(username, 
sizeof(username)))
                                                return FALSE;
                                        if (strcmp(username, "") == 0) {
                                                MessageBox(NULL, 
NO_PASSWD_NO_LOGON_WARN,
                                                                        "WinVNC Error",
                                                                        MB_OK | 
MB_ICONEXCLAMATION);
                                                Show(TRUE, FALSE);
                                        } else {
                                                Show(TRUE, TRUE);
                                        }
                                }
                        }
        }

        return TRUE;
}

// Dialog box handling functions
void
vncProperties::Show(BOOL show, BOOL usersettings)
{
        if (show)
        {
                m_inadvanced = FALSE;
                if (!m_allowproperties)
                {
                        // If the user isn't allowed to override the settings then 
tell them
                        MessageBox(NULL, NO_OVERRIDE_ERR, "WinVNC Error", MB_OK |
MB_ICONEXCLAMATION);
                        return;
                }

                // Verify that we know who is logged on
                if (usersettings) {
                        char username[UNLEN+1];
                        if (!vncService::CurrentUser(username, sizeof(username)))
                                return;
                        if (strcmp(username, "") == 0) {
                                MessageBox(NULL, NO_CURRENT_USER_ERR, "WinVNC Error", 
MB_OK |
MB_ICONEXCLAMATION);
                                return;
                        }
                } else {
                        // We're trying to edit the default local settings - verify 
that we can
                        HKEY hkLocal, hkDefault;
                        BOOL canEditDefaultPrefs = 1;
                        DWORD dw;
                        if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
                                WINVNC_REGISTRY_KEY,
                                0, REG_NONE, REG_OPTION_NON_VOLATILE,
                                KEY_READ, NULL, &hkLocal, &dw) != ERROR_SUCCESS)
                                canEditDefaultPrefs = 0;
                        else if (RegCreateKeyEx(hkLocal,
                                "Default",
                                0, REG_NONE, REG_OPTION_NON_VOLATILE,
                                KEY_WRITE | KEY_READ, NULL, &hkDefault, &dw) != 
ERROR_SUCCESS)
                                canEditDefaultPrefs = 0;
                        if (hkLocal) RegCloseKey(hkLocal);
                        if (hkDefault) RegCloseKey(hkDefault);

                        if (!canEditDefaultPrefs) {
                                MessageBox(NULL, CANNOT_EDIT_DEFAULT_PREFS, "WinVNC 
Error", MB_OK |
MB_ICONEXCLAMATION);
                                return;
                        }
                }

                // Now, if the dialog is not already displayed, show it!
                if (!m_dlgvisible)
                {
                        if (usersettings)
                                vnclog.Print(LL_INTINFO, VNCLOG("show per-user 
Properties\n"));
                        else
                                vnclog.Print(LL_INTINFO, VNCLOG("show default system 
Properties\n"));

                        // Load in the settings relevant to the user or system
                        Load(usersettings);

                        for (;;)
                        {
                                m_returncode_valid = FALSE;

                                // Do the dialog box
                                int result = DialogBoxParam(hAppInstance,
                                    MAKEINTRESOURCE(IDD_PROPERTIES),
                                    NULL,
                                    (DLGPROC) DialogProc,
                                    (LONG) this);

                                if (!m_returncode_valid)
                                    result = IDCANCEL;

                                vnclog.Print(LL_INTINFO, VNCLOG("dialog result = 
%d\n"), result);

                                if (result == -1)
                                {
                                        // Dialog box failed, so quit
                                        PostQuitMessage(0);
                                        return;
                                }

                                // We're allowed to exit if the password is not empty
                                char passwd[MAXPWLEN];
                                m_server->GetPassword(passwd);
                                {
                                    vncPasswd::ToText plain(passwd);
                                    if ((strlen(plain) != 0) || 
!m_server->AuthRequired())
                                        break;
                                }

                                vnclog.Print(LL_INTERR, VNCLOG("warning - empty 
password\n"));

                                // The password is empty, so if OK was used then 
redisplay the box,
                                // otherwise, if CANCEL was used, close down WinVNC
                                if (result == IDCANCEL)
                                {
                                    vnclog.Print(LL_INTERR, VNCLOG("no password - 
QUITTING\n"));
                                    PostQuitMessage(0);
                                    return;
                                }

                                // If we reached here then OK was used & there is no 
password!
                                int result2 = MessageBox(NULL, NO_PASSWORD_WARN,
                                    "WinVNC Warning", MB_OK | MB_ICONEXCLAMATION);

                                omni_thread::sleep(4);
                        }

                        // Load in all the settings
                        Load(TRUE);
                }
        }
}

BOOL CALLBACK
vncProperties::DialogProc(HWND hwnd,
                                                  UINT uMsg,
                                                  WPARAM wParam,
                                                  LPARAM lParam )
{
        // We use the dialog-box's USERDATA to store a _this pointer
        // This is set only once WM_INITDIALOG has been recieved, though!
        vncProperties *_this = (vncProperties *) GetWindowLong(hwnd, GWL_USERDATA);

        switch (uMsg)
        {

        case WM_INITDIALOG:
                {
                        // Retrieve the Dialog box parameter and use it as a pointer
                        // to the calling vncProperties object
                        SetWindowLong(hwnd, GWL_USERDATA, lParam);
                        _this = (vncProperties *) lParam;

                        // Set the dialog box's title to indicate which Properties 
we're editting
                        if (_this->m_usersettings) {
                                SetWindowText(hwnd, "WinVNC: Current User Properties");
                        } else {
                                SetWindowText(hwnd, "WinVNC: Default Local System 
Properties");
                        }

                        // Initialise the properties controls
                        HWND hConnectSock = GetDlgItem(hwnd, IDC_CONNECT_SOCK);
                        SendMessage(hConnectSock,
                                BM_SETCHECK,
                                _this->m_server->SockConnected(),
                                0);

                        HWND hConnectCorba = GetDlgItem(hwnd, IDC_CONNECT_CORBA);
                        SendMessage(hConnectCorba,
                                BM_SETCHECK,
                                _this->m_server->CORBAConnected(),
                                0);
#if(defined(_CORBA))
                        EnableWindow(hConnectCorba, TRUE);
#else
                        EnableWindow(hConnectCorba, FALSE);
#endif

                        HWND hPortNoAuto = GetDlgItem(hwnd, IDC_PORTNO_AUTO);
                        SendMessage(hPortNoAuto,
                                BM_SETCHECK,
                                _this->m_server->AutoPortSelect(),
                                0);
                        EnableWindow(hPortNoAuto, _this->m_server->SockConnected());

                        HWND hPortNo = GetDlgItem(hwnd, IDC_PORTNO);
                        SetDlgItemInt(hwnd, IDC_PORTNO,
PORT_TO_DISPLAY(_this->m_server->GetPort()), FALSE);
                        EnableWindow(hPortNo, _this->m_server->SockConnected()
                                && !_this->m_server->AutoPortSelect());

                        HWND hPassword = GetDlgItem(hwnd, IDC_PASSWORD);
                        EnableWindow(hPassword, _this->m_server->SockConnected());

                        // Get the password
                        char passwd[MAXPWLEN];
                        _this->m_server->GetPassword(passwd);
                        {
                            vncPasswd::ToText plain(passwd);
                            SetDlgItemText(hwnd, IDC_PASSWORD, (const char *) plain);
                        }

                        // Remote input settings
                        HWND hEnableRemoteInputs = GetDlgItem(hwnd, 
IDC_DISABLE_INPUTS);
                        SendMessage(hEnableRemoteInputs,
                                BM_SETCHECK,
                                !(_this->m_server->RemoteInputsEnabled()),
                                0);

                        // Local input settings
                        HWND hDisableLocalInputs = GetDlgItem(hwnd, 
IDC_DISABLE_LOCAL_INPUTS);
                        SendMessage(hDisableLocalInputs,
                                BM_SETCHECK,
                                _this->m_server->LocalInputsDisabled(),
                                0);

                        // Set the polling options
                        HWND hPollFullScreen = GetDlgItem(hwnd, IDC_POLL_FULLSCREEN);
                        SendMessage(hPollFullScreen,
                                BM_SETCHECK,
                                _this->m_server->PollFullScreen(),
                                0);

                        HWND hPollForeground = GetDlgItem(hwnd, IDC_POLL_FOREGROUND);
                        SendMessage(hPollForeground,
                                BM_SETCHECK,
                                _this->m_server->PollForeground(),
                                0);

                        HWND hPollUnderCursor = GetDlgItem(hwnd, 
IDC_POLL_UNDER_CURSOR);
                        SendMessage(hPollUnderCursor,
                                BM_SETCHECK,
                                _this->m_server->PollUnderCursor(),
                                0);

                        HWND hPollConsoleOnly = GetDlgItem(hwnd, IDC_CONSOLE_ONLY);
                        SendMessage(hPollConsoleOnly,
                                BM_SETCHECK,
                                _this->m_server->PollConsoleOnly(),
                                0);
                        EnableWindow(hPollConsoleOnly,
                                _this->m_server->PollUnderCursor() || 
_this->m_server->PollForeground()
                                );

                        HWND hPollOnEventOnly = GetDlgItem(hwnd, IDC_ONEVENT_ONLY);
                        SendMessage(hPollOnEventOnly,
                                BM_SETCHECK,
                                _this->m_server->PollOnEventOnly(),
                                0);
                        EnableWindow(hPollOnEventOnly,
                                _this->m_server->PollUnderCursor() || 
_this->m_server->PollForeground()
                                );

                        SetForegroundWindow(hwnd);

                        _this->m_dlgvisible = TRUE;

                        return TRUE;
                }

        case WM_COMMAND:
                if (_this->m_inadvanced)
                        return FALSE;
                switch (LOWORD(wParam))
                {

                case IDOK:
                case IDC_APPLY:
                        {
                                // Save the password
                                char passwd[MAXPWLEN+1];
                                if (GetDlgItemText(hwnd, IDC_PASSWORD, (LPSTR) 
&passwd, MAXPWLEN+1) == 0)
                                {
                                    vncPasswd::FromClear crypt;
                                    _this->m_server->SetPassword(crypt);
                                }
                                else
                                {
                                    vncPasswd::FromText crypt(passwd);
                                    _this->m_server->SetPassword(crypt);
                                }

                                // Save the new settings to the server
                                HWND hPortNoAuto = GetDlgItem(hwnd, IDC_PORTNO_AUTO);
                                _this->m_server->SetAutoPortSelect(
                                        SendMessage(hPortNoAuto, BM_GETCHECK, 0, 0) == 
BST_CHECKED
                                        );

                                // only save the port number if we're not auto 
selecting!
                                if (!_this->m_server->AutoPortSelect())
                                {
                                        BOOL success;
                                        UINT portno = GetDlgItemInt(hwnd, IDC_PORTNO, 
&success, TRUE);
                                        if (success)
                                                
_this->m_server->SetPort(DISPLAY_TO_PORT(portno));
                                }

                                HWND hConnectSock = GetDlgItem(hwnd, IDC_CONNECT_SOCK);
                                _this->m_server->SockConnect(
                                        SendMessage(hConnectSock, BM_GETCHECK, 0, 0) 
== BST_CHECKED
                                        );

                                HWND hConnectCorba = GetDlgItem(hwnd, 
IDC_CONNECT_CORBA);
                                _this->m_server->CORBAConnect(
                                        SendMessage(hConnectCorba, BM_GETCHECK, 0, 0) 
== BST_CHECKED
                                        );

                                // Remote input stuff
                                HWND hEnableRemoteInputs = GetDlgItem(hwnd, 
IDC_DISABLE_INPUTS);
                                _this->m_server->EnableRemoteInputs(
                                        SendMessage(hEnableRemoteInputs, BM_GETCHECK, 
0, 0) != BST_CHECKED
                                        );

                                // Local input stuff
                                HWND hDisableLocalInputs = GetDlgItem(hwnd, 
IDC_DISABLE_LOCAL_INPUTS);
                                _this->m_server->DisableLocalInputs(
                                        SendMessage(hDisableLocalInputs, BM_GETCHECK, 
0, 0) == BST_CHECKED
                                        );

                                // Handle the polling stuff
                                HWND hPollFullScreen = GetDlgItem(hwnd, 
IDC_POLL_FULLSCREEN);
                                _this->m_server->PollFullScreen(
                                        SendMessage(hPollFullScreen, BM_GETCHECK, 0, 
0) == BST_CHECKED
                                        );

                                HWND hPollForeground = GetDlgItem(hwnd, 
IDC_POLL_FOREGROUND);
                                _this->m_server->PollForeground(
                                        SendMessage(hPollForeground, BM_GETCHECK, 0, 
0) == BST_CHECKED
                                        );

                                HWND hPollUnderCursor = GetDlgItem(hwnd, 
IDC_POLL_UNDER_CURSOR);
                                _this->m_server->PollUnderCursor(
                                        SendMessage(hPollUnderCursor, BM_GETCHECK, 0, 
0) == BST_CHECKED
                                        );

                                HWND hPollConsoleOnly = GetDlgItem(hwnd, 
IDC_CONSOLE_ONLY);
                                _this->m_server->PollConsoleOnly(
                                        SendMessage(hPollConsoleOnly, BM_GETCHECK, 0, 
0) == BST_CHECKED
                                        );

                                HWND hPollOnEventOnly = GetDlgItem(hwnd, 
IDC_ONEVENT_ONLY);
                                _this->m_server->PollOnEventOnly(
                                        SendMessage(hPollOnEventOnly, BM_GETCHECK, 0, 
0) == BST_CHECKED
                                        );

                                // And to the registry
                                _this->Save();

                                // Was ok pressed?
                                if (LOWORD(wParam) == IDOK)
                                {
                                        // Yes, so close the dialog
                                        vnclog.Print(LL_INTINFO, VNCLOG("enddialog 
(OK)\n"));

                                        _this->m_returncode_valid = TRUE;

                                        EndDialog(hwnd, IDOK);
                                        _this->m_dlgvisible = FALSE;
                                }

                                return TRUE;
                        }

                case IDCANCEL:
                        vnclog.Print(LL_INTINFO, VNCLOG("enddialog (CANCEL)\n"));

                        _this->m_returncode_valid = TRUE;

                        EndDialog(hwnd, IDCANCEL);
                        _this->m_dlgvisible = FALSE;
                        return TRUE;

                case IDADVANCED:
                        vnclog.Print(LL_INTINFO, VNCLOG("newdialog (ADVANCED)\n"));
                        {
                                _this->EnableControls(FALSE, hwnd, _this);
                                _this->m_inadvanced = TRUE;
                                vncAdvancedProperties *aprop = new 
vncAdvancedProperties();
                                if (aprop->Init(_this->m_server))
                                {
                                        aprop->Show(TRUE, _this->m_usersettings);
                                }
                                //aprop->DoDialog();
                                SetForegroundWindow(hwnd);
                                _this->m_inadvanced = FALSE;
                                _this->EnableControls(TRUE, hwnd, _this);
                                omni_thread::sleep(0, 200000000);
                        }
                        return TRUE;

                case IDC_CONNECT_SOCK:
                        // The user has clicked on the socket connect tickbox
                        {
                                HWND hConnectSock = GetDlgItem(hwnd, IDC_CONNECT_SOCK);
                                BOOL connectsockon =
                                        (SendMessage(hConnectSock, BM_GETCHECK, 0, 0) 
== BST_CHECKED);

                                HWND hPortNoAuto = GetDlgItem(hwnd, IDC_PORTNO_AUTO);
                                EnableWindow(hPortNoAuto, connectsockon);

                                HWND hPortNo = GetDlgItem(hwnd, IDC_PORTNO);
                                EnableWindow(hPortNo, connectsockon
                                        && (SendMessage(hPortNoAuto, BM_GETCHECK, 0, 
0) != BST_CHECKED));

                                HWND hPassword = GetDlgItem(hwnd, IDC_PASSWORD);
                                EnableWindow(hPassword, connectsockon);
                        }
                        return TRUE;

                case IDC_POLL_FOREGROUND:
                case IDC_POLL_UNDER_CURSOR:
                        // User has clicked on one of the polling mode buttons
                        // affected by the pollconsole and pollonevent options
                        {
                                // Get the poll-mode buttons
                                HWND hPollForeground = GetDlgItem(hwnd, 
IDC_POLL_FOREGROUND);
                                HWND hPollUnderCursor = GetDlgItem(hwnd, 
IDC_POLL_UNDER_CURSOR);

                                // Determine whether to enable the modifier options
                                BOOL enabled = (SendMessage(hPollForeground, 
BM_GETCHECK, 0, 0) ==
BST_CHECKED) ||
                                        (SendMessage(hPollUnderCursor, BM_GETCHECK, 0, 
0) == BST_CHECKED);

                                HWND hPollConsoleOnly = GetDlgItem(hwnd, 
IDC_CONSOLE_ONLY);
                                EnableWindow(hPollConsoleOnly, enabled);

                                HWND hPollOnEventOnly = GetDlgItem(hwnd, 
IDC_ONEVENT_ONLY);
                                EnableWindow(hPollOnEventOnly, enabled);
                        }
                        return TRUE;

                case IDC_PORTNO_AUTO:
                        // User has toggled the Auto Port Select feature.
                        // If this is in use, then we don't allow the Display number 
field
                        // to be modified!
                        {
                                // Get the auto select button
                                HWND hPortNoAuto = GetDlgItem(hwnd, IDC_PORTNO_AUTO);

                                // Should the portno field be modifiable?
                                BOOL enable = SendMessage(hPortNoAuto, BM_GETCHECK, 0, 
0) != BST_CHECKED;

                                // Set the state
                                HWND hPortNo = GetDlgItem(hwnd, IDC_PORTNO);
                                EnableWindow(hPortNo, enable);
                        }
                        return TRUE;

                }

                break;
        }
        return 0;
}

void
vncProperties::EnableControls(BOOL state, HWND hwnd, vncProperties *_this)
{
        EnableWindow(hwnd, state);
        //return;

        HWND hOk = GetDlgItem(hwnd, IDOK);
        EnableWindow(hOk, state);
        HWND hCancel = GetDlgItem(hwnd, IDCANCEL);
        EnableWindow(hCancel, state);
        HWND hApply = GetDlgItem(hwnd, IDC_APPLY);
        EnableWindow(hApply, state);
        HWND hAdvanced = GetDlgItem(hwnd, IDADVANCED);
        EnableWindow(hAdvanced, state);

        HWND hCon = GetDlgItem(hwnd, IDC_CONNECT_BORDER);
        EnableWindow(hCon, state);
        HWND hUp = GetDlgItem(hwnd, IDC_UPDATE_BORDER);
        EnableWindow(hUp, state);
        HWND hPortLabel = GetDlgItem(hwnd, IDC_PORTNO_LABEL);
        EnableWindow(hPortLabel, state);
        HWND hPassLabel = GetDlgItem(hwnd, IDC_PASSWORD_LABEL);
        EnableWindow(hPassLabel, state);

        HWND hConnectSock = GetDlgItem(hwnd, IDC_CONNECT_SOCK);
        EnableWindow(hConnectSock, state);
        HWND hConnectCorba = GetDlgItem(hwnd, IDC_CONNECT_CORBA);
#if(defined(_CORBA))
        EnableWindow(hConnectCorba, state && TRUE);
#else
        EnableWindow(hConnectCorba, FALSE);
#endif

        HWND hPortNoAuto = GetDlgItem(hwnd, IDC_PORTNO_AUTO);
        EnableWindow(hPortNoAuto, state && (SendMessage(hConnectSock, BM_GETCHECK, 0,
0) == BST_CHECKED));

        HWND hPortNo = GetDlgItem(hwnd, IDC_PORTNO);
        EnableWindow(hPortNo, state &&
                ((SendMessage(hConnectSock, BM_GETCHECK, 0, 0) == BST_CHECKED) &&
                 !(SendMessage(hPortNoAuto, BM_GETCHECK, 0, 0) == BST_CHECKED))
                 );

        HWND hPassword = GetDlgItem(hwnd, IDC_PASSWORD);
        EnableWindow(hPassword, state && (SendMessage(hConnectSock, BM_GETCHECK, 0,
0) == BST_CHECKED));

        // Remote input settings
        HWND hEnableRemoteInputs = GetDlgItem(hwnd, IDC_DISABLE_INPUTS);
        EnableWindow(hEnableRemoteInputs, state);

        // Local input settings
        HWND hDisableLocalInputs = GetDlgItem(hwnd, IDC_DISABLE_LOCAL_INPUTS);
        EnableWindow(hDisableLocalInputs, state);

        // Set the polling options
        HWND hPollFullScreen = GetDlgItem(hwnd, IDC_POLL_FULLSCREEN);
        EnableWindow(hPollFullScreen, state);

        HWND hPollForeground = GetDlgItem(hwnd, IDC_POLL_FOREGROUND);
        EnableWindow(hPollForeground, state);

        HWND hPollUnderCursor = GetDlgItem(hwnd, IDC_POLL_UNDER_CURSOR);
        EnableWindow(hPollUnderCursor, state);

        HWND hPollConsoleOnly = GetDlgItem(hwnd, IDC_CONSOLE_ONLY);
        EnableWindow(hPollConsoleOnly,
                state &&
                ((SendMessage(hPollUnderCursor, BM_GETCHECK, 0, 0) == BST_CHECKED) ||
                 (SendMessage(hPollForeground, BM_GETCHECK, 0, 0) == BST_CHECKED))
                );

        HWND hPollOnEventOnly = GetDlgItem(hwnd, IDC_ONEVENT_ONLY);
        EnableWindow(hPollOnEventOnly,
                state &&
                ((SendMessage(hPollUnderCursor, BM_GETCHECK, 0, 0) == BST_CHECKED) ||
                 (SendMessage(hPollForeground, BM_GETCHECK, 0, 0) == BST_CHECKED))
                );
}

// Functions to load & save the settings
LONG
vncProperties::LoadInt(HKEY key, LPCSTR valname, LONG defval)
{
        LONG pref;
        ULONG type = REG_DWORD;
        ULONG prefsize = sizeof(pref);

        if (RegQueryValueEx(key,
                valname,
                NULL,
                &type,
                (LPBYTE) &pref,
                &prefsize) != ERROR_SUCCESS)
                return defval;

        if (type != REG_DWORD)
                return defval;

        if (prefsize != sizeof(pref))
                return defval;

        return pref;
}

void
vncProperties::LoadPassword(HKEY key, char *buffer)
{
        DWORD type = REG_BINARY;
        int slen=MAXPWLEN;
        char inouttext[MAXPWLEN];

        // Retrieve the encrypted password
        if (RegQueryValueEx(key,
                "Password",
                NULL,
                &type,
                (LPBYTE) &inouttext,
                (LPDWORD) &slen) != ERROR_SUCCESS)
                return;

        if (slen > MAXPWLEN)
                return;

        memcpy(buffer, inouttext, MAXPWLEN);
}

char *
vncProperties::LoadString(HKEY key, LPCSTR keyname)
{
        DWORD type = REG_SZ;
        DWORD buflen = 0;
        BYTE *buffer = 0;

        // Get the length of the AuthHosts string
        if (RegQueryValueEx(key,
                keyname,
                NULL,
                &type,
                NULL,
                &buflen) != ERROR_SUCCESS)
                return 0;

        if (type != REG_SZ)
                return 0;
        buffer = new BYTE[buflen];
        if (buffer == 0)
                return 0;

        // Get the AuthHosts string data
        if (RegQueryValueEx(key,
                keyname,
                NULL,
                &type,
                buffer,
                &buflen) != ERROR_SUCCESS) {
                delete [] buffer;
                return 0;
        }

        // Verify the type
        if (type != REG_SZ) {
                delete [] buffer;
                return 0;
        }

        return (char *)buffer;
}

void
vncProperties::Load(BOOL usersettings)
{
        char username[UNLEN+1];
        HKEY hkLocal, hkLocalUser, hkDefault;
        DWORD dw;

        // NEW (R3) PREFERENCES ALGORITHM
        // 1.   Look in HKEY_LOCAL_MACHINE/Software/ORL/WinVNC3/%username%
        //              for sysadmin-defined, user-specific settings.
        // 2.   If not found, fall back to %username%=Default
        // 3.   If AllowOverrides is set then load settings from
        //              HKEY_CURRENT_USER/Software/ORL/WinVNC3

        // GET THE CORRECT KEY TO READ FROM

        // Get the user name / service name
        if (!vncService::CurrentUser((char *)&username, sizeof(username)))
                return;

        // If there is no user logged on them default to SYSTEM
        if (strcmp(username, "") == 0)
                strcpy((char *)&username, "SYSTEM");

        // Try to get the machine registry key for WinVNC
        if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
                WINVNC_REGISTRY_KEY,
                0, REG_NONE, REG_OPTION_NON_VOLATILE,
                KEY_READ, NULL, &hkLocal, &dw) != ERROR_SUCCESS)
                return;

        // Now try to get the per-user local key
        if (RegOpenKeyEx(hkLocal,
                username,
                0, KEY_READ,
                &hkLocalUser) != ERROR_SUCCESS)
                hkLocalUser = NULL;

        // Get the default key
        if (RegCreateKeyEx(hkLocal,
                "Default",
                0, REG_NONE, REG_OPTION_NON_VOLATILE,
                KEY_READ,
                NULL,
                &hkDefault,
                &dw) != ERROR_SUCCESS)
                hkDefault = NULL;

        // LOAD THE MACHINE-LEVEL PREFS

        // Logging/debugging prefs
        vnclog.Print(LL_INTINFO, VNCLOG("loading local-only settings\n"));
        vnclog.SetMode(LoadInt(hkLocal, "DebugMode", 0));
        vnclog.SetLevel(LoadInt(hkLocal, "DebugLevel", 0));

        // Disable Tray Icon
        m_server->SetDisableTrayIcon(LoadInt(hkLocal, "DisableTrayIcon", false));

        // Authentication required, loopback allowed, loopbackOnly
        m_server->SetLoopbackOnly(LoadInt(hkLocal, "LoopbackOnly", false));
        if (m_server->LoopbackOnly())
                m_server->SetLoopbackOk(true);
        else
                m_server->SetLoopbackOk(LoadInt(hkLocal, "AllowLoopback", false));
        m_server->SetAuthRequired(LoadInt(hkLocal, "AuthRequired", true));
        m_server->SetConnectPriority(LoadInt(hkLocal, "ConnectPriority", 2));
        if (!m_server->LoopbackOnly())
        {
                char *authhosts = LoadString(hkLocal, "AuthHosts");
                if (authhosts != 0) {
                        m_server->SetAuthHosts(authhosts);
                        delete [] authhosts;
                } else {
                        m_server->SetAuthHosts(0);
                }
        } else {
                m_server->SetAuthHosts(0);
        }

        // LOAD THE USER PREFERENCES

        // Set the default user prefs
        vnclog.Print(LL_INTINFO, VNCLOG("clearing user settings\n"));
        m_pref_AutoPortSelect=TRUE;
        m_pref_SockConnect=TRUE;
        m_pref_CORBAConn=FALSE;
        {
            vncPasswd::FromClear crypt;
            memcpy(m_pref_passwd, crypt, MAXPWLEN);
        }
        m_pref_QuerySetting=2;
        m_pref_QueryTimeout=30;
        m_pref_QueryAccept=FALSE;
        m_pref_QueryAllowNoPass=FALSE;
        m_pref_IdleTimeout=0;
        m_pref_EnableRemoteInputs=TRUE;
        m_pref_DisableLocalInputs=FALSE;
        m_pref_LockSettings=-1;
        m_pref_PollUnderCursor=FALSE;
        m_pref_PollForeground=TRUE;
        m_pref_PollFullScreen=FALSE;
        m_pref_PollConsoleOnly=TRUE;
        m_pref_PollOnEventOnly=FALSE;
        m_pref_RemoveWallpaper=TRUE;
        m_allowshutdown = TRUE;
        m_allowproperties = TRUE;

        // Load the local prefs for this user
        if (hkDefault != NULL)
        {
                vnclog.Print(LL_INTINFO, VNCLOG("loading DEFAULT local settings\n"));
                LoadUserPrefs(hkDefault);
                m_allowshutdown = LoadInt(hkDefault, "AllowShutdown", m_allowshutdown);
                m_allowproperties = LoadInt(hkDefault, "AllowProperties",
m_allowproperties);
        }

        // Are we being asked to load the user settings, or just the default local
system settings?
        if (usersettings) {
                // We want the user settings, so load them!

                if (hkLocalUser != NULL)
                {
                        vnclog.Print(LL_INTINFO, VNCLOG("loading \"%s\" local 
settings\n"),
username);
                        LoadUserPrefs(hkLocalUser);
                        m_allowshutdown = LoadInt(hkLocalUser, "AllowShutdown", 
m_allowshutdown);
                        m_allowproperties = LoadInt(hkLocalUser, "AllowProperties",
m_allowproperties);
                }

                // Now override the system settings with the user's settings
                // If the username is SYSTEM then don't try to load them, because there
aren't any...
                if (m_allowproperties && (strcmp(username, "SYSTEM") != 0))
                {
                        HKEY hkGlobalUser;
                        if (RegCreateKeyEx(HKEY_CURRENT_USER,
                                WINVNC_REGISTRY_KEY,
                                0, REG_NONE, REG_OPTION_NON_VOLATILE,
                                KEY_READ, NULL, &hkGlobalUser, &dw) == ERROR_SUCCESS)
                        {
                                vnclog.Print(LL_INTINFO, VNCLOG("loading \"%s\" global 
settings\n"),
username);
                                LoadUserPrefs(hkGlobalUser);
                                RegCloseKey(hkGlobalUser);

                                // Close the user registry hive so it can unload if 
required
                                RegCloseKey(HKEY_CURRENT_USER);
                        }
                }
        } else {
                vnclog.Print(LL_INTINFO, VNCLOG("bypassing user-specific settings (both
local and global)\n"));
        }

        if (hkLocalUser != NULL) RegCloseKey(hkLocalUser);
        if (hkDefault != NULL) RegCloseKey(hkDefault);
        RegCloseKey(hkLocal);

        // Make the loaded settings active..
        ApplyUserPrefs();

        // Note whether we loaded the user settings or just the default system
settings
        m_usersettings = usersettings;
}

void
vncProperties::LoadUserPrefs(HKEY appkey)
{
        // LOAD USER PREFS FROM THE SELECTED KEY

        // Connection prefs
        m_pref_SockConnect=LoadInt(appkey, "SocketConnect", m_pref_SockConnect);
        m_pref_AutoPortSelect=LoadInt(appkey, "AutoPortSelect",
m_pref_AutoPortSelect);
        m_pref_PortNumber=LoadInt(appkey, "PortNumber", m_pref_PortNumber);
        m_pref_BeepConnect=LoadInt(appkey, "BeepConnect", m_pref_BeepConnect);
        m_pref_BeepDisconnect=LoadInt(appkey, "BeepDisconnect",
m_pref_BeepDisconnect);
        m_pref_IdleTimeout=LoadInt(appkey, "IdleTimeout", m_pref_IdleTimeout);

        m_pref_RemoveWallpaper=LoadInt(appkey, "RemoveWallpaper",
m_pref_RemoveWallpaper);

        // Connection querying settings
        m_pref_QuerySetting=LoadInt(appkey, "QuerySetting", m_pref_QuerySetting);
        m_pref_QueryTimeout=LoadInt(appkey, "QueryTimeout", m_pref_QueryTimeout);
        m_pref_QueryAccept=LoadInt(appkey, "QueryAccept", m_pref_QueryAccept);
        m_pref_QueryAllowNoPass=LoadInt(appkey, "QueryAllowNoPass",
m_pref_QueryAllowNoPass);

        // Load the password
        LoadPassword(appkey, m_pref_passwd);

        // CORBA Settings
        m_pref_CORBAConn=LoadInt(appkey, "CORBAConnect", m_pref_CORBAConn);

        // Remote access prefs
        m_pref_EnableRemoteInputs=LoadInt(appkey, "InputsEnabled",
m_pref_EnableRemoteInputs);
        m_pref_LockSettings=LoadInt(appkey, "LockSetting", m_pref_LockSettings);
        m_pref_DisableLocalInputs=LoadInt(appkey, "LocalInputsDisabled",
m_pref_DisableLocalInputs);

        // Polling prefs
        m_pref_PollUnderCursor=LoadInt(appkey, "PollUnderCursor",
m_pref_PollUnderCursor);
        m_pref_PollForeground=LoadInt(appkey, "PollForeground",
m_pref_PollForeground);
        m_pref_PollFullScreen=LoadInt(appkey, "PollFullScreen",
m_pref_PollFullScreen);
        m_pref_PollConsoleOnly=LoadInt(appkey, "OnlyPollConsole",
m_pref_PollConsoleOnly);
        m_pref_PollOnEventOnly=LoadInt(appkey, "OnlyPollOnEvent",
m_pref_PollOnEventOnly);
}

void
vncProperties::ApplyUserPrefs()
{
        // APPLY THE CACHED PREFERENCES TO THE SERVER

        // Update the connection querying settings
        m_server->SetQuerySetting(m_pref_QuerySetting);
        m_server->SetQueryTimeout(m_pref_QueryTimeout);
        m_server->SetQueryAccept(m_pref_QueryAccept);
        m_server->SetQueryAllowNoPass(m_pref_QueryAllowNoPass);
        m_server->SetAutoIdleDisconnectTimeout(m_pref_IdleTimeout);
        m_server->EnableRemoveWallpaper(m_pref_RemoveWallpaper);

        // Is the listening socket closing?
        if (!m_pref_SockConnect)
                m_server->SockConnect(m_pref_SockConnect);

        // Are inputs being disabled?
        if (!m_pref_EnableRemoteInputs)
                m_server->EnableRemoteInputs(m_pref_EnableRemoteInputs);
        if (m_pref_DisableLocalInputs)
                m_server->DisableLocalInputs(m_pref_DisableLocalInputs);

        // Update the password
        m_server->SetPassword(m_pref_passwd);

        // Now change the listening port settings
        m_server->SetAutoPortSelect(m_pref_AutoPortSelect);
        if (!m_pref_AutoPortSelect)
                m_server->SetPort(m_pref_PortNumber);
        m_server->SockConnect(m_pref_SockConnect);

        // Set the beep options
        m_server->SetBeepConnect(m_pref_BeepConnect);
        m_server->SetBeepDisconnect(m_pref_BeepDisconnect);

        // Set the CORBA connection status
        m_server->CORBAConnect(m_pref_CORBAConn);

        // Remote access prefs
        m_server->EnableRemoteInputs(m_pref_EnableRemoteInputs);
        m_server->SetLockSettings(m_pref_LockSettings);
        m_server->DisableLocalInputs(m_pref_DisableLocalInputs);

        // Polling prefs
        m_server->PollUnderCursor(m_pref_PollUnderCursor);
        m_server->PollForeground(m_pref_PollForeground);
        m_server->PollFullScreen(m_pref_PollFullScreen);
        m_server->PollConsoleOnly(m_pref_PollConsoleOnly);
        m_server->PollOnEventOnly(m_pref_PollOnEventOnly);
}

void
vncProperties::SaveInt(HKEY key, LPCSTR valname, LONG val)
{
        RegSetValueEx(key, valname, 0, REG_DWORD, (LPBYTE) &val, sizeof(val));
}

void
vncProperties::SavePassword(HKEY key, char *buffer)
{
        RegSetValueEx(key, "Password", 0, REG_BINARY, (LPBYTE) buffer, MAXPWLEN);
}

void
vncProperties::Save()
{
        HKEY appkey;
        DWORD dw;

        if (!m_allowproperties)
                return;

        // NEW (R3) PREFERENCES ALGORITHM
        // The user's prefs are only saved if the user is allowed to override
        // the machine-local settings specified for them.  Otherwise, the
        // properties entry on the tray icon menu will be greyed out.

        // GET THE CORRECT KEY TO READ FROM

        // Have we loaded user settings, or system settings?
        if (m_usersettings) {
                // Verify that we know who is logged on
                char username[UNLEN+1];
                if (!vncService::CurrentUser((char *)&username, sizeof(username)))
                        return;
                if (strcmp(username, "") == 0)
                        return;

                // Try to get the per-user, global registry key for WinVNC
                if (RegCreateKeyEx(HKEY_CURRENT_USER,
                        WINVNC_REGISTRY_KEY,
                        0, REG_NONE, REG_OPTION_NON_VOLATILE,
                        KEY_WRITE | KEY_READ, NULL, &appkey, &dw) != ERROR_SUCCESS)
                        return;
        } else {
                // Try to get the default local registry key for WinVNC
                HKEY hkLocal;
                if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
                        WINVNC_REGISTRY_KEY,
                        0, REG_NONE, REG_OPTION_NON_VOLATILE,
                        KEY_READ, NULL, &hkLocal, &dw) != ERROR_SUCCESS) {
                        MessageBox(NULL, "MB1", "WVNC", MB_OK);
                        return;
                }
                if (RegCreateKeyEx(hkLocal,
                        "Default",
                        0, REG_NONE, REG_OPTION_NON_VOLATILE,
                        KEY_WRITE | KEY_READ, NULL, &appkey, &dw) != ERROR_SUCCESS) {
                        RegCloseKey(hkLocal);
                        return;
                }
                RegCloseKey(hkLocal);
        }

        // SAVE PER-USER PREFS IF ALLOWED
        SaveUserPrefs(appkey);

        RegCloseKey(appkey);

        // Close the user registry hive, to allow it to unload if reqd
        RegCloseKey(HKEY_CURRENT_USER);
}

void
vncProperties::SaveUserPrefs(HKEY appkey)
{
        // SAVE THE PER USER PREFS
        vnclog.Print(LL_INTINFO, VNCLOG("saving current settings to registry\n"));

        // Connection prefs
        SaveInt(appkey, "SocketConnect", m_server->SockConnected());
        SaveInt(appkey, "AutoPortSelect", m_server->AutoPortSelect());
        if (!m_server->AutoPortSelect())
                SaveInt(appkey, "PortNumber", m_server->GetPort());
        SaveInt(appkey, "InputsEnabled", m_server->RemoteInputsEnabled());
        SaveInt(appkey, "LocalInputsDisabled", m_server->LocalInputsDisabled());
        SaveInt(appkey, "IdleTimeout", m_server->AutoIdleDisconnectTimeout());

        // Connection querying settings
        SaveInt(appkey, "QuerySetting", m_server->QuerySetting());
        SaveInt(appkey, "QueryTimeout", m_server->QueryTimeout());

        // Save the password
        char passwd[MAXPWLEN];
        m_server->GetPassword(passwd);
        SavePassword(appkey, passwd);

#if(defined(_CORBA))
        // Don't save the CORBA enabled flag if CORBA is not compiled in!
        SaveInt(appkey, "CORBAConnect", m_server->CORBAConnected());
#endif

        // Polling prefs
        SaveInt(appkey, "PollUnderCursor", m_server->PollUnderCursor());
        SaveInt(appkey, "PollForeground", m_server->PollForeground());
        SaveInt(appkey, "PollFullScreen", m_server->PollFullScreen());

        SaveInt(appkey, "OnlyPollConsole", m_server->PollConsoleOnly());
        SaveInt(appkey, "OnlyPollOnEvent", m_server->PollOnEventOnly());
}
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