/*++ COptions::Load

Routine Description:

    Loads current options to the registy

Arguments:

Returns:
    
    HRESULT

Revision History:

    Jan-01-95 Davepl  Created

--*/

HRESULT COptions::Load()
{
    HKEY hkSave;

    // If ctrl-alt-shift is down at startup, "forget" registry settings

    if (GetKeyState(VK_SHIFT) < 0 && GetKeyState(VK_MENU)  < 0 && GetKeyState(VK_CONTROL) < 0) {

        SetDefaultValues();

        return S_FALSE;

    }

    if (ERROR_SUCCESS != RegOpenKeyEx(HKEY_CURRENT_USER, szTaskmanKey, 0, KEY_READ, &hkSave)) {

        return S_FALSE;

    }

    DWORD dwType;

    DWORD dwSize = sizeof(COptions);

    if (ERROR_SUCCESS != RegQueryValueEx(hkSave, szOptionsKey, 0, &dwType, (LPBYTE) this, &dwSize) {

        // Validate type and size of options info we got from the registry

        || dwType           != REG_BINARY 
        || dwSize           != sizeof(COptions)

        // Validate options, revert to default if any are invalid (like if
        // the window would be offscreen)

        || MonitorFromRect(&m_rcWindow, MONITOR_DEFAULTTONULL) == NULL
        || m_iCurrentPage    > NUM_PAGES - 1)


        // Reset to default values

        SetDefaultValues();

        RegCloseKey(hkSave);

        return S_FALSE;

    }

    RegCloseKey(hkSave);

    // if machine is updated to/from terminal server
    // we might get wrong columns from the registry.
    // for example if machine was previously hydra and 
    // the last columns displayed contained username.
    // Afterwords hydra is uninstalled. Now when we 
    // load the columns next time we find username there
    // which should not be in case of non hydra systems.
    // lets take care of such situation here.
    // _HYDRA_

    if (!IsTerminalServer( )) {

        // remove username, session id columns if present.

        for(int i = 0; i < NUM_COLUMN + 1 ; i++) {

            if(g_Options.m_ActiveProcCol[ i ] == -1 ) {

                // this is end of column list.

                break;  

            }

            if (g_Options.m_ActiveProcCol[ i ] == COL_SESSIONID || g_Options.m_ActiveProcCol[ i ] == COL_USERNAME ) {

                // current values are not good as they contain hydra specific column
                // so lets set the default values.

                SetDefaultValues();

                break;

            }

        }

    }

    //_HYDRA_

    return S_OK;

}