windows-xp/Source/XPSP1/NT/sdktools/setedit/registry.c

/*****************************************************************************
 *
 *  Registry.c - This module handles requests for registry data, and
 *               reading/writing of window placement data
 *
 *  Microsoft Confidential
 *  Copyright (c) 1992-1993 Microsoft Corporation
 *
 *
 ****************************************************************************/

#include <stdio.h>

#include "setedit.h"
#include "registry.h"
#include "utils.h"      // for StringToWindowPlacement

static TCHAR PerfmonNamesKey[] = TEXT("SOFTWARE\\Microsoft\\PerfMon") ;
static TCHAR WindowKeyName[] = TEXT("WindowPos") ;
static TCHAR TimeOutKeyName[] = TEXT("DataTimeOut") ;
static TCHAR DupInstanceKeyName[] = TEXT("MonitorDuplicateInstances") ;

VOID LoadLineGraphSettings(PGRAPHSTRUCT lgraph)
{
    lgraph->gMaxValues = DEFAULT_MAX_VALUES;
    lgraph->gOptions.bLegendChecked = DEFAULT_F_DISPLAY_LEGEND;
    lgraph->gOptions.bLabelsChecked = DEFAULT_F_DISPLAY_CALIBRATION;

    return;
}

VOID LoadRefreshSettings(PGRAPHSTRUCT lgraph)
{
    lgraph->gInterval = DEF_GRAPH_INTERVAL;
    lgraph->gOptions.eTimeInterval = (FLOAT) lgraph->gInterval / (FLOAT) 1000.0 ;
    return;
}


BOOL LoadMainWindowPlacement (HWND hWnd)
{
    WINDOWPLACEMENT   WindowPlacement ;
    TCHAR             szWindowPlacement [TEMP_BUF_LEN] ;
    HKEY              hKeyNames ;
    DWORD             Size;
    DWORD             Type;
    DWORD             Status;
    DWORD             localDataTimeOut;
    DWORD             localFlag;
    STARTUPINFO       StartupInfo ;


    GetStartupInfo (&StartupInfo) ;

    DataTimeOut = DEFAULT_DATA_TIMEOUT ;

    Status = RegOpenKeyEx(HKEY_CURRENT_USER, PerfmonNamesKey,
                          0L, KEY_READ | KEY_WRITE, &hKeyNames) ;

    if (Status == ERROR_SUCCESS) {
        // get the data timeout  value
        Size = sizeof(localDataTimeOut) ;

        Status = RegQueryValueEx(hKeyNames, TimeOutKeyName, NULL,
                                 &Type, (LPBYTE)&localDataTimeOut, &Size) ;
        if (Status == ERROR_SUCCESS && Type == REG_DWORD) {
            DataTimeOut = localDataTimeOut ;
        }

        // check the duplicate entry value
        Size = sizeof (localFlag);
        Status = RegQueryValueEx (hKeyNames, DupInstanceKeyName, NULL,
                                  &Type, (LPBYTE)&localFlag, &Size);
        if ((Status == ERROR_SUCCESS) && (Type == REG_DWORD)) {
            bMonitorDuplicateInstances = (BOOL)(localFlag == 1);
        } else {
            // value not found or not correct so set to default value
            bMonitorDuplicateInstances = TRUE;
            // and try to save it back in the registry
            localFlag = 1;
            Status = RegSetValueEx(hKeyNames, DupInstanceKeyName, 0,
                                   REG_DWORD, (LPBYTE)&localFlag, sizeof(localFlag));

        }

        // get the window placement data
        Size = sizeof(szWindowPlacement) ;

        Status = RegQueryValueEx(hKeyNames, WindowKeyName, NULL,
                                 &Type, (LPBYTE)szWindowPlacement, &Size) ;
        RegCloseKey (hKeyNames) ;

        if (Status == ERROR_SUCCESS) {
            int            iNumScanned ;

            iNumScanned = swscanf (szWindowPlacement,
                                   TEXT("%d %d %d %d %d %d %d %d %d"),
                                   &WindowPlacement.showCmd,
                                   &WindowPlacement.ptMinPosition.x,
                                   &WindowPlacement.ptMinPosition.y,
                                   &WindowPlacement.ptMaxPosition.x,
                                   &WindowPlacement.ptMaxPosition.y,
                                   &WindowPlacement.rcNormalPosition.left,
                                   &WindowPlacement.rcNormalPosition.top,
                                   &WindowPlacement.rcNormalPosition.right,
                                   &WindowPlacement.rcNormalPosition.bottom) ;

            if (StartupInfo.dwFlags == STARTF_USESHOWWINDOW) {
                WindowPlacement.showCmd = StartupInfo.wShowWindow ;
            }
            WindowPlacement.length = sizeof(WINDOWPLACEMENT);
            WindowPlacement.flags = WPF_SETMINPOSITION;
            if (!SetWindowPlacement (hWnd, &WindowPlacement)) {
                return (FALSE);
            }
            bPerfmonIconic = IsIconic(hWnd) ;
            return (TRUE) ;
        }
    }

    if (Status != ERROR_SUCCESS) {
        // open registry failed, use Max as default
        ShowWindow (hWnd, SW_SHOWMAXIMIZED) ;
        return (FALSE) ;
    }
    return TRUE;
}



BOOL SaveMainWindowPlacement (HWND hWnd)
{
    WINDOWPLACEMENT   WindowPlacement ;
    TCHAR             ObjectType [2] ;
    TCHAR             szWindowPlacement [TEMP_BUF_LEN] ;
    HKEY              hKeyNames = 0 ;
    DWORD             Size ;
    DWORD             Status ;
    DWORD             dwDisposition ;

    ObjectType [0] = TEXT(' ') ;
    ObjectType [1] = TEXT('\0') ;

    WindowPlacement.length = sizeof(WINDOWPLACEMENT);
    if (!GetWindowPlacement (hWnd, &WindowPlacement)) {
        return FALSE;
    }
    TSPRINTF (szWindowPlacement, TEXT("%d %d %d %d %d %d %d %d %d"),
              WindowPlacement.showCmd,
              WindowPlacement.ptMinPosition.x,
              WindowPlacement.ptMinPosition.y,
              WindowPlacement.ptMaxPosition.x,
              WindowPlacement.ptMaxPosition.y,
              WindowPlacement.rcNormalPosition.left,
              WindowPlacement.rcNormalPosition.top,
              WindowPlacement.rcNormalPosition.right,
              WindowPlacement.rcNormalPosition.bottom) ;

    // try to create it first
    Status = RegCreateKeyEx(HKEY_CURRENT_USER, PerfmonNamesKey, 0L,
                            ObjectType, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS | KEY_WRITE,
                            NULL, &hKeyNames, &dwDisposition) ;

    // if it has been created before, then open it
    if (dwDisposition == REG_OPENED_EXISTING_KEY) {
        Status = RegOpenKeyEx(HKEY_CURRENT_USER, PerfmonNamesKey, 0L,
                              KEY_WRITE, &hKeyNames) ;
    }

    // we got the handle, now store the window placement data
    if (Status == ERROR_SUCCESS) {
        Size = (lstrlen (szWindowPlacement) + 1) * sizeof (TCHAR) ;

        Status = RegSetValueEx(hKeyNames, WindowKeyName, 0,
                               REG_SZ, (LPBYTE)szWindowPlacement, Size) ;

        RegCloseKey (hKeyNames) ;

    }

    if (dwDisposition != REG_OPENED_EXISTING_KEY && Status == ERROR_SUCCESS) {
        // now add the DataTimeOut key for the first time
        Status = RegSetValueEx(hKeyNames, TimeOutKeyName, 0,
                               REG_DWORD, (LPBYTE)&DataTimeOut, sizeof(DataTimeOut)) ;

    }

    return (Status == ERROR_SUCCESS) ;
}