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Microsoft Windows NT Build 511 (SDK Final Release) 07-24-1993
/******************************************************************************\
* This is a part of the Microsoft Source Code Samples.
* Copyright (C) 1993 Microsoft Corporation.
* All rights reserved.
* This source code is only intended as a supplement to
* Microsoft Development Tools and/or WinHelp documentation.
* See these sources for detailed information regarding the
* Microsoft samples programs.
\******************************************************************************/
/*************************************************************************\
*
* PROGRAM: Monkey: the Registry Monkey Utility.
* PURPOSE: To demonstrate Registry API.
* COMMENTS:
*
\*************************************************************************/
#define STRICT
#include <windows.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "monkey.h"
HANDLE hInst;
HWND hDlg;
HANDLE hHeap;
/*************************************************************************\
*
* FUNCTION: WinMain(HANDLE, HANDLE, LPSTR, int)
*
* PURPOSE: Creates the dialogbox.
*
* COMMENTS:
*
\*************************************************************************/
int APIENTRY WinMain (HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
DWORD retCode;
UNREFERENCED_PARAMETER( nCmdShow );
UNREFERENCED_PARAMETER( lpCmdLine );
UNREFERENCED_PARAMETER( hPrevInstance );
hInst = hInstance;
hHeap = HeapCreate (0, 0, 0);
retCode = DialogBox ((HANDLE)hInst, (LPCSTR)"MonkeyDlg",
NULL, (DLGPROC)MonkeyDlgProc);
HeapDestroy (hHeap);
return (retCode);
}
/************************************************************************\
*
* FUNCTION: MonkeyDlgProc();
*
* PURPOSE: Handle the Monkey dialog box messages.
*
* MESSAGES:
*
* WM_INITDIALOG - Posts WM_GETFIRSTKEY message.
*
* WM_GETFIRSTKEY - Puts the first 4 pre-defined keys in the listbox.
*
* IDL_LISTBOX - Trapped when an item in the left hand listbox
* has been double clicked. It posts a IDB_NEXT message.
*
* IDL_LISTBOX2 - Trapped when an item in the right hand listbox has
* been double clicked. It basically calls DisplayKeyData,
* which fills the Value edit fields with the data from
* the current key's specified value information.
*
* IDB_PRINT - Basically calls PrintTree() which does a recursive
* print of the Registry from the current key to the
* end of it's branches.
*
* IDB_BACK - Sets the dialog box with the information from the
* previously selected key (one closer to the root of
* the registry, the parent of the current key).
*
* IDB_NEXT - Sets the dialog box with the information on the
* selected key child.
*
* IDR_FULL - Sets a global variable used to determine if the
* user wants to print full Registry information
* or only information from keys that have value
* associated with it. Variable is set to TRUE.
*
* IDR_TRIMMED - Same as above, only the variable is set to FALSE.
*
\************************************************************************/
int APIENTRY MonkeyDlgProc (HWND hDlg, WORD wMsg, LONG wParam, LONG lParam)
{
ULONG KeyClassLength = 256;
ULONG KeyNameLength = 256;
DWORD indexLB;
CHAR *putNullAt;
static CHAR RegPath[MAX_PATH] = "";
static CHAR NameLBSelect[256] = "";
static HKEY hKeyRoot;
static DWORD RegLevel;
static BOOL FullBranches = TRUE;
static HANDLE hFile = INVALID_HANDLE_VALUE;
static HANDLE hBootIni;
UNREFERENCED_PARAMETER( lParam );
switch (wMsg)
{
case WM_INITDIALOG:
// Post a message to get the first 4 pre-defined keys, and set
// Full Branches to be the print default.
PostMessage (hDlg, WM_GETFIRSTKEY, 0, 0);
CheckDlgButton (hDlg, IDR_FULL, TRUE);
return (0);
case WM_GETFIRSTKEY:
// Initialize by putting the first 4 predefined keys of the
// registry in the list box.
SendMessage (GetDlgItem(hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)"HKEY_LOCAL_MACHINE");
SendMessage (GetDlgItem(hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)"HKEY_CURRENT_USER");
SendMessage (GetDlgItem(hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)"HKEY_USERS");
SendMessage (GetDlgItem(hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)"HKEY_CLASSES_ROOT");
hKeyRoot = 0; // Initialize hKeyRoot.
return (0);
case WM_SYSCOMMAND:
if (wParam == SC_CLOSE)
{
EndDialog (hDlg, TRUE);
if (hFile != INVALID_HANDLE_VALUE)
CloseHandle (hFile);
return (TRUE);
}
break;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDR_FULL:
// If Full Branches pressed, set global var to TRUE.
FullBranches = TRUE;
return (0);
case IDR_TRIMMED:
// If Trimmed Branches pressed, set global var to FALSE.
FullBranches = FALSE;
return (0);
case IDL_LISTBOX:
// If double click in left hand listbox, clear Value
// edit fields, and execute Next functionality.
if ( HIWORD (wParam) == LBN_DBLCLK)
{
SetDlgItemText (hDlg, IDE_VALUE1, "");
SetDlgItemText (hDlg, IDE_VALUE2, "");
PostMessage (hDlg, WM_COMMAND, IDB_NEXT, 0);
}
return (0);
case IDL_LISTBOX2:
// If double click right hand listbox, clear Value edit
// fields, then display the key's data.
if ( HIWORD (wParam) == LBN_DBLCLK)
{
SetDlgItemText (hDlg, IDE_VALUE1, "");
SetDlgItemText (hDlg, IDE_VALUE2, "");
DisplayKeyData (hDlg, RegPath, hKeyRoot);
}
return (0);
case IDB_NEXT:
// Get the index of the cursor selection
// in the list box.
indexLB = SendMessage (GetDlgItem (hDlg, IDL_LISTBOX),
LB_GETCURSEL, 0, 0);
// If nothing is selected, flag user and return, otherwise
// process the selected key.
// LB_ERR indicates nothing selected.
if (indexLB == LB_ERR)
{
MessageBox (hDlg, "Please select an item from the list box",
"Registry Monkey Utility", MB_OK);
return (0);
}
// If listbox item 0 is pressed, user wants to move
// back up. Execute the Back functionality.
if (indexLB == 0 && hKeyRoot)
{
PostMessage (hDlg, WM_COMMAND, IDB_BACK, 0);
return (0);
}
// Get text from selection in LB.
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX),
LB_GETTEXT, indexLB, (LPARAM)NameLBSelect);
// Put name of chosen item in Name field.
SetDlgItemText (hDlg, IDE_NAME, NameLBSelect);
// Then clear ListBox entries.
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX),
LB_RESETCONTENT, 0, 0);
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX2),
LB_RESETCONTENT, 0, 0);
EnumerateLevel (hDlg, NameLBSelect, RegPath, &hKeyRoot);
return (0);
case IDB_BACK:
// For this case (hRootKey = 0)you're at the top level already.
// Tell the user, then return
if (!hKeyRoot)
{
MessageBox (hDlg, "Top Level: You can not backup any further.",
"Registry Monkey Utility", MB_OK);
return (0);
}
//For all remaining cases, clear the listboxes.
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX),
LB_RESETCONTENT, 0, 0);
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX2),
LB_RESETCONTENT, 0, 0);
// If hRootKey has a value, but the pathname is blank,
// then you must be 1 level deep, reset to level 0 by
// posting WM_GETFIRSTKEY.
if (strcmp (RegPath, "") == 0)
{
SetDlgItemText (hDlg, IDE_NAME, "");
PostMessage (hDlg, WM_GETFIRSTKEY, 0, 0);
return (0);
}
// Two cases left. One in which the path has only one
// key name in it, and no back slash character (meaning
// strrchr() will return NULL); and one the other case
// where there are more than one key name in the path (
// and at least one back slash for strrchr(). If this
// is the first case, we want to fakeout EnumerateLevel
// into thinking we just picked one of the pre-defined keys,
// and then re-enumerate it's child keys.
if ((putNullAt = strrchr (RegPath, '\\')) == NULL)
{
RegPath[0] = '\0';
switch ((DWORD)hKeyRoot)
{
case (DWORD)HKEY_LOCAL_MACHINE:
strcpy (NameLBSelect, "HKEY_LOCAL_MACHINE");
break;
case (DWORD)HKEY_USERS:
strcpy (NameLBSelect, "HKEY_USERS");
break;
case (DWORD)HKEY_CURRENT_USER:
strcpy (NameLBSelect, "HKEY_CURRENT_USER");
break;
case (DWORD)HKEY_CLASSES_ROOT:
strcpy (NameLBSelect, "HKEY_CLASSES_ROOT");
break;
}
SetDlgItemText (hDlg, IDE_NAME, NameLBSelect);
hKeyRoot = 0;
EnumerateLevel (hDlg, NameLBSelect, RegPath, &hKeyRoot);
}
else
{
// In the final case, we can just trim the last key
// name off the path, and re-enumerate the level.
*putNullAt = '\0';
putNullAt = strrchr (RegPath, '\\');
if (putNullAt)
{
strcpy (NameLBSelect, putNullAt+1);
*putNullAt = '\0';
}
else
{
strcpy (NameLBSelect, RegPath);
*RegPath = '\0';
}
SetDlgItemText (hDlg, IDE_NAME, NameLBSelect);
EnumerateLevel (hDlg, NameLBSelect, RegPath, &hKeyRoot);
}
return (0);
default:
return (0);
}
}
return (FALSE);
}
/************************************************************************\
*
* FUNCTION: EnumerateLevel();
*
* PURPOSE: To get a valid key handle (either to determine if the one sent
* to the function was one of the pre-defined, or to open a key
* specified by the path), and to pass that key handle along
* to QueryKey().
*
* To enumerate the children of a key, you must have
* an open handle to it. The four top keys of the
* Registry are predefined and open for use:
* HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_USER,
* and HKEY_CLASSES_ROOT. These 4 can be used for
* RegEnumKey as is; but to RegEnumKey on any of the
* children of these you must first have an open key
* handle to the child.
*
* If hKeyRoot != 0, assume you are lower than the
* first level of the Registry and the user is trying
* to enumerate one of the children. First calculate
* the name of the child, and then use RegOpenKey to
* get an open handle.
*
* If hKeyRoot == 0, assume you are at the top level
* of the Registry, and set the hKey to be enumerated
* to be one of the 4 predefined values, the specific
* one indicated by the ListBox selection.
*
\************************************************************************/
VOID EnumerateLevel (HWND hDlg, LPTSTR NameLBSelect,
LPTSTR RegPath, HKEY *hKeyRoot)
{
HKEY hKey;
DWORD retCode;
CHAR Buf[80];
if (*hKeyRoot)
{
// If RegPath is not NULL, then
// you have to add a backslash to the
// path name before appending the next
// level child name.
if (strcmp (RegPath, "") != 0)
strcat (RegPath, "\\");
// Add the next level child name.
strcat (RegPath, NameLBSelect);
// Use RegOpenKeyEx() with the new
// Registry path to get an open handle
// to the child key you want to
// enumerate.
retCode = RegOpenKeyEx (*hKeyRoot,
RegPath,
0,
KEY_ENUMERATE_SUB_KEYS |
KEY_EXECUTE |
KEY_QUERY_VALUE,
&hKey);
if (retCode != ERROR_SUCCESS)
{
if (retCode == ERROR_ACCESS_DENIED)
wsprintf (Buf, "Error: unable to open key. Probably due to security reasons.");
else
wsprintf (Buf, "Error: Unable to open key, RegOpenKey = %d, Line = %d",
retCode, __LINE__);
MessageBox (hDlg, Buf, "", MB_OK);
PostMessage (hDlg, WM_COMMAND, IDB_BACK, 0);
return;
}
}
else
{
// Set the *hKeyRoot handle based
// on the text taken from the ListBox.
if (strcmp (NameLBSelect, "HKEY_CLASSES_ROOT") == 0)
*hKeyRoot = HKEY_CLASSES_ROOT;
if (strcmp (NameLBSelect, "HKEY_USERS") == 0)
*hKeyRoot = HKEY_USERS;
if (strcmp (NameLBSelect, "HKEY_LOCAL_MACHINE") == 0)
*hKeyRoot = HKEY_LOCAL_MACHINE;
if (strcmp (NameLBSelect, "HKEY_CURRENT_USER") == 0)
*hKeyRoot = HKEY_CURRENT_USER;
hKey = *hKeyRoot; // hKey is used in RegEnumKey().
}//end if/else *hKeyRoot
QueryKey (hDlg, hKey);
RegCloseKey (hKey); // Close the key handle.
// rect.top = 0; rect.left = 5; rect.right = 1200; rect.bottom = 25;
// hDC = GetDC (hDlg);
// FillRect (hDC, &rect, GetStockObject(WHITE_BRUSH));
// TextOut (hDC, 5, 5, RegPath, strlen(RegPath));
// ReleaseDC (hDlg, hDC);
SetDlgItemText (hDlg, IDE_TEXTOUT, RegPath);
}
/************************************************************************\
*
* FUNCTION: QueryKey();
*
* PURPOSE: To display the key's children (subkeys) and the names of
* the Values associated with it. This function uses RegEnumKey,
* RegEnumValue, and RegQueryInfoKey.
*
\************************************************************************/
VOID QueryKey (HWND hDlg, HANDLE hKey)
{
CHAR KeyName[MAX_PATH];
CHAR ClassName[MAX_PATH] = ""; // Buffer for class name.
DWORD dwcClassLen = MAX_PATH; // Length of class string.
DWORD dwcSubKeys; // Number of sub keys.
DWORD dwcMaxSubKey; // Longest sub key size.
DWORD dwcMaxClass; // Longest class string.
DWORD dwcValues; // Number of values for this key.
DWORD dwcMaxValueName; // Longest Value name.
DWORD dwcMaxValueData; // Longest Value data.
DWORD dwcSecDesc; // Security descriptor.
FILETIME ftLastWriteTime; // Last write time.
DWORD i;
DWORD retCode;
DWORD j;
DWORD retValue;
CHAR ValueName[MAX_VALUE_NAME];
DWORD dwcValueName = MAX_VALUE_NAME;
CHAR Buf[80];
// Get Class name, Value count.
RegQueryInfoKey (hKey, // Key handle.
ClassName, // Buffer for class name.
&dwcClassLen, // Length of class string.
NULL, // Reserved.
&dwcSubKeys, // Number of sub keys.
&dwcMaxSubKey, // Longest sub key size.
&dwcMaxClass, // Longest class string.
&dwcValues, // Number of values for this key.
&dwcMaxValueName, // Longest Value name.
&dwcMaxValueData, // Longest Value data.
&dwcSecDesc, // Security descriptor.
&ftLastWriteTime); // Last write time.
SetDlgItemText (hDlg, IDE_CLASS, ClassName);
SetDlgItemInt (hDlg, IDE_CVALUES, dwcValues, FALSE);
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)"..");
// Loop until RegEnumKey fails, get
// the name of each child and enter
// it into the box.
// Enumerate the Child Keys.
SetCursor (LoadCursor (NULL, IDC_WAIT));
for (i=0, retCode = ERROR_SUCCESS; retCode == ERROR_SUCCESS; i++)
{
retCode = RegEnumKey (hKey, i,
KeyName, MAX_PATH);
if (retCode == (DWORD)ERROR_SUCCESS)
SendMessage (GetDlgItem(hDlg, IDL_LISTBOX),
LB_ADDSTRING, 0, (LONG)KeyName);
}
SetCursor (LoadCursor (NULL, IDC_ARROW));
// Enumerate the Key Values
SetCursor (LoadCursor (NULL, IDC_WAIT));
if (dwcValues)
for (j = 0, retValue = ERROR_SUCCESS; j < dwcValues; j++)
{
dwcValueName = MAX_VALUE_NAME;
ValueName[0] = '\0';
retValue = RegEnumValue (hKey, j, ValueName,
&dwcValueName,
NULL,
NULL, //&dwType,
NULL, //&bData,
NULL); //&bcData);
if (retValue != (DWORD)ERROR_SUCCESS &&
retValue != ERROR_INSUFFICIENT_BUFFER)
{
wsprintf (Buf, "Line:%d 0 based index = %d, retValue = %d, ValueLen = %d",
__LINE__, j, retValue, dwcValueName);
MessageBox (hDlg, Buf, "Debug", MB_OK);
}
Buf[0] = '\0';
if (!strlen(ValueName))
strcpy (ValueName, "<NO NAME>");
wsprintf (Buf, "%d) %s ", j, ValueName);
SendMessage (GetDlgItem (hDlg, IDL_LISTBOX2),
LB_ADDSTRING, 0, (LONG)Buf);
}// end for(;;)
SetCursor (LoadCursor (NULL, IDC_ARROW));
}
/************************************************************************\
*
* FUNCTION: DisplayKeyData();
*
* PURPOSE: To display the keys values and value types to the Value edit
* field. This function is called when the right hand listbox
* is double clicked. The functionality is much like that found
* in the function PrintTree, please see it for more details.
*
\************************************************************************/
VOID DisplayKeyData (HWND hDlg, CHAR *RegPath, HANDLE hKeyRoot)
{
HKEY hKey;
DWORD dwLBIndex;
CHAR Buf[LINE_LEN];
CHAR ValueName[MAX_VALUE_NAME];
DWORD cbValueName = MAX_VALUE_NAME;
DWORD dwType;
DWORD retCode;
CHAR ClassName[MAX_PATH];
DWORD dwcClassLen = MAX_PATH;
DWORD dwcSubKeys;
DWORD dwcMaxSubKey;
DWORD dwcMaxClass;
DWORD dwcValues;
DWORD dwcMaxValueName;
DWORD dwcMaxValueData;
DWORD dwcSecDesc;
FILETIME ftLastWriteTime;
BYTE *bData;
DWORD cbData;
CHAR *outBuf;
DWORD i;
DWORD cStrLen;
CHAR *BinaryStrBuf;
CHAR ByteBuf[4];
CHAR *ptr;
// OPEN THE KEY.
// LBIndex should == value index.
dwLBIndex = SendMessage (GetDlgItem (hDlg, IDL_LISTBOX2),
LB_GETCURSEL, 0, 0);
retCode = RegOpenKeyEx (hKeyRoot, // Key handle at root level.
RegPath, // Path name of child key.
0, // Reserved.
KEY_EXECUTE, // Requesting read access.
&hKey); // Address of key to be returned.
if (retCode)
{
wsprintf (Buf, "Error: RegOpenKeyEx = %d", retCode);
MessageBox (hDlg, Buf, "DisplayKeyData()", MB_OK);
return;
}
// ADD A QUERY AND ALLOCATE A BUFFER FOR BDATA.
retCode =
RegQueryInfoKey (hKey, // Key handle.
ClassName, // Buffer for class name.
&dwcClassLen, // Length of class string.
NULL, // Reserved.
&dwcSubKeys, // Number of sub keys.
&dwcMaxSubKey, // Longest sub key size.
&dwcMaxClass, // Longest class string.
&dwcValues, // Number of values for this key.
&dwcMaxValueName, // Longest Value name.
&dwcMaxValueData, // Longest Value data.
&dwcSecDesc, // Security descriptor.
&ftLastWriteTime); // Last write time.
if (retCode)
{
wsprintf (Buf, "Error: RegQIK = %d, %d", retCode, __LINE__);
MessageBox (hDlg, Buf, "", MB_OK);
}
bData = HeapAlloc (hHeap, 0, dwcMaxValueData);
cbData = dwcMaxValueData;
// ENUMERATE THE KEY.
retCode = RegEnumValue (hKey, // Key handle returned from RegOpenKeyEx.
dwLBIndex, // Value index, taken from listbox.
ValueName, // Name of value.
&cbValueName,// Size of value name.
NULL, // Reserved, dword = NULL.
&dwType, // Type of data.
bData, // Data buffer.
&cbData); // Size of data buffer.
if (retCode != ERROR_SUCCESS)
{
if (dwType < REG_FULL_RESOURCE_DESCRIPTOR)
{
wsprintf (Buf, "Error: RegEnumValue = %d, cbData = %d, line %d",
retCode, cbData, __LINE__);
MessageBox (hDlg, Buf, "", MB_OK);
}
}
switch (dwType)
{
// REG_NONE ( 0 ) // No value type
// REG_SZ ( 1 ) // Unicode nul terminated string
// REG_EXPAND_SZ ( 2 ) // Unicode nul terminated string
// (with environment variable references)
// REG_BINARY ( 3 ) // Free form binary
// REG_DWORD ( 4 ) // 32-bit number
// REG_DWORD_LITTLE_ENDIAN ( 4 ) // 32-bit number (same as REG_DWORD)
// REG_DWORD_BIG_ENDIAN ( 5 ) // 32-bit number
// REG_LINK ( 6 ) // Symbolic Link (unicode)
// REG_MULTI_SZ ( 7 ) // Multiple Unicode strings
// REG_RESOURCE_LIST ( 8 ) // Resource list in the resource map
// REG_FULL_RESOURCE_DESCRIPTOR ( 9 ) // Resource list in the hardware description
case REG_NONE:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_NONE: No defined value type.");
break;
case REG_SZ:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_SZ: A null-terminated Unicode string.");
outBuf = HeapAlloc (hHeap, 0, cbData + 2);
*outBuf = '\0';
strcat (outBuf, "\"");
strcat (outBuf, bData);
strcat (outBuf, "\"");
SetDlgItemText (hDlg, IDE_VALUE2, outBuf);
HeapFree (hHeap, 0, outBuf);
break;
case REG_EXPAND_SZ:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_EXPAND_SZ: A String referencing environment variables i.e. PATH.");
outBuf = HeapAlloc (hHeap, 0, cbData + 2);
*outBuf = '\0';
strcat (outBuf, "\"");
strcat (outBuf, bData);
strcat (outBuf, "\"");
SetDlgItemText (hDlg, IDE_VALUE2, outBuf);
HeapFree (hHeap, 0, outBuf);
break;
case REG_BINARY:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_BINARY: Freeform binary data.");
SetCursor (LoadCursor (NULL, IDC_WAIT));
BinaryStrBuf = HeapAlloc (hHeap, 0, (3 * cbData) + 1);
if (BinaryStrBuf)
{
*BinaryStrBuf = '\0';
*ByteBuf = '\0';
for (i = 0; i < cbData; i++)
{
sprintf (ByteBuf, "%02x ", (BYTE)bData[i]);
strcat (BinaryStrBuf, ByteBuf);
}
SetDlgItemText (hDlg, IDE_VALUE2, BinaryStrBuf);
}
else
{
MessageBox (hDlg, "Error: BinaryStrBuf = malloc failed",
"Debug: DisplayKeyData", MB_OK);
}
SetDlgItemText (hDlg, IDL_LISTBOX2, BinaryStrBuf);
HeapFree (hHeap, 0, BinaryStrBuf);
SetCursor (LoadCursor (NULL, IDC_ARROW));
break;
case REG_DWORD:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_DWORD: A 32 bit number.");
SetDlgItemInt (hDlg, IDE_VALUE2, *(UINT *)bData, FALSE);
break;
case REG_DWORD_BIG_ENDIAN:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_DWORD_BIG_ENDIAN: A 32 bit number in big endian format.");
SetDlgItemInt (hDlg, IDE_VALUE2, *(UINT *)bData, TRUE);
break;
case REG_LINK:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_LINK: A Unicode symbolic link.");
SetDlgItemText (hDlg, IDE_VALUE2, bData);
break;
case REG_MULTI_SZ:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_MULTI_SZ: An array of null-terminated strings.");
SetCursor (LoadCursor (NULL, IDC_WAIT));
// Count the NULLs in the buffer to
// find out how many strings there are.
for (i=0, cStrLen=4; i < cbData; i++)
if (!bData[i])
cStrLen+=4; // Add room for two quotes and two
// spaced per string.
outBuf = HeapAlloc (hHeap, 0, cbData + cStrLen);
ptr = bData; // Set ptr to beginning of buffer.
*outBuf = '\0'; // Initialize output string.
strcat (outBuf, "{ "); // Do first bracket.
while (*ptr) // Loop til you hit 2 NULLs in a row.
{
strcat (outBuf, "\""); // Put quotes around each string.
strcat (outBuf, ptr);
strcat (outBuf, "\" ");
ptr += strlen(ptr)+1;
}
strcat (outBuf, "}"); // Add final bracket.
SetDlgItemText (hDlg, IDE_VALUE2, outBuf);
SetCursor (LoadCursor (NULL, IDC_ARROW));
HeapFree (hHeap, 0, outBuf); // free output string.
break;
case REG_RESOURCE_LIST: // CM_RESOURCE_LIST is kind of complex,
// it's defined in ntconfig.h. Print
// it as a free formed binary data now,
// and structure it later with a
// different release.
SetDlgItemText (hDlg, IDE_VALUE1, "REG_RESOURCE_LIST: A device-driver resource list.");
BinaryStrBuf = HeapAlloc (hHeap, 0, (3 * cbData) + 1);
if (BinaryStrBuf)
{
*BinaryStrBuf = '\0';
*ByteBuf = '\0';
for (i = 0; i < cbData; i++)
{
sprintf (ByteBuf, "%02x ", (BYTE)bData[i]);
strcat (BinaryStrBuf, ByteBuf);
}
SetDlgItemText (hDlg, IDE_VALUE2, BinaryStrBuf);
}
else
{
MessageBox (hDlg, "Error: BinaryStrBuf = malloc failed",
"Debug: DisplayKeyData", MB_OK);
}
SetDlgItemText (hDlg, IDL_LISTBOX2, BinaryStrBuf);
HeapFree (hHeap, 0, BinaryStrBuf);
break;
case REG_FULL_RESOURCE_DESCRIPTOR:
SetDlgItemText (hDlg, IDE_VALUE1, "REG_FULL_RESOURCE_DESCRIPTOR: A resource list in the hardware description.");
break;
default:
wsprintf (Buf, "Undefine in this verion of the Registry Monkey. %d",
dwType);
SetDlgItemText (hDlg, IDE_VALUE1, Buf);
break;
} // end switch
HeapFree (hHeap, 0, bData);
}
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