treeview.c File Reference

#include "regedit.h"

Include dependency graph for treeview.c:

Go to the source code of this file.

Macros
#define	NUM_ICONS   3 /* number of icons to add to the image list */
#define	IDI_SHELL_FOLDER   4
#define	IDI_SHELL_FOLDER_OPEN   5
#define	IDI_SHELL_MY_COMPUTER   16

Functions
static BOOL	get_item_path (HWND hwndTV, HTREEITEM hItem, HKEY *phKey, LPWSTR *pKeyPath, int *pPathLen, int *pMaxLen)
LPCWSTR	GetItemPath (HWND hwndTV, HTREEITEM hItem, HKEY *phRootKey)
BOOL	DeleteNode (HWND hwndTV, HTREEITEM hItem)
static HTREEITEM	AddEntryToTree (HWND hwndTV, HTREEITEM hParent, LPWSTR label, HKEY hKey, DWORD dwChildren)
BOOL	RefreshTreeItem (HWND hwndTV, HTREEITEM hItem)
BOOL	RefreshTreeView (HWND hwndTV)
HTREEITEM	InsertNode (HWND hwndTV, HTREEITEM hItem, LPWSTR name)
HWND	StartKeyRename (HWND hwndTV)
static BOOL	InitTreeViewItems (HWND hwndTV, LPWSTR pHostName)
static BOOL	InitTreeViewImageLists (HWND hwndTV)
BOOL	OnTreeExpanding (HWND hwndTV, NMTREEVIEW *pnmtv)
BOOL	CreateNewKey (HWND hwndTV, HTREEITEM hItem)
BOOL	TreeWndNotifyProc (HWND hWnd, WPARAM wParam, LPARAM lParam, BOOL *Result)
HWND	CreateTreeView (HWND hwndParent, LPWSTR pHostName, HMENU id)
void	DestroyTreeView (HWND hwndTV)
BOOL	SelectNode (HWND hwndTV, LPCWSTR keyPath)

Variables
static int	Image_Open
static int	Image_Closed
static int	Image_Root
static LPWSTR	pathBuffer

Macro Definition Documentation

IDI_SHELL_FOLDER

#define IDI_SHELL_FOLDER   4

Definition at line 21 of file treeview.c.

IDI_SHELL_FOLDER_OPEN

#define IDI_SHELL_FOLDER_OPEN   5

Definition at line 22 of file treeview.c.

IDI_SHELL_MY_COMPUTER

#define IDI_SHELL_MY_COMPUTER   16

Definition at line 23 of file treeview.c.

NUM_ICONS

#define NUM_ICONS   3 /* number of icons to add to the image list */

Definition at line 18 of file treeview.c.

Function Documentation

AddEntryToTree()

static HTREEITEM AddEntryToTree ( HWND  hwndTV, HTREEITEM  hParent, LPWSTR  label, HKEY  hKey, DWORD  dwChildren  )

static

Definition at line 107 of file treeview.c.

{
    TVITEMW tvi;
    TVINSERTSTRUCTW tvins;
 
    if (hKey)
    {
        if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
        {
            dwChildren = 0;
        }
    }
 
    tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
    tvi.pszText = label;
    tvi.cchTextMax = wcslen(tvi.pszText);
    tvi.iImage = Image_Closed;
    tvi.iSelectedImage = Image_Open;
    tvi.cChildren = dwChildren;
    tvi.lParam = (LPARAM)hKey;
    tvins.item = tvi;
    tvins.hInsertAfter = (HTREEITEM)(hKey ? TVI_LAST : TVI_FIRST);
    tvins.hParent = hParent;
    return TreeView_InsertItem(hwndTV, &tvins);
}

Referenced by InitTreeViewItems(), InsertNode(), OnTreeExpanding(), and RefreshTreeItem().

CreateNewKey()

BOOL CreateNewKey	(	HWND	hwndTV,
		HTREEITEM	hItem
	)

Definition at line 563 of file treeview.c.

{
    WCHAR szNewKeyFormat[128];
    WCHAR szNewKey[128];
    LPCWSTR pszKeyPath;
    int iIndex = 1;
    LONG nResult;
    HKEY hRootKey = NULL, hKey = NULL, hNewKey = NULL;
    BOOL bSuccess = FALSE;
    DWORD dwDisposition;
    HTREEITEM hNewItem;
 
    pszKeyPath = GetItemPath(hwndTV, hItem, &hRootKey);
    if (!pszKeyPath)
        return bSuccess;
    if (pszKeyPath[0] == L'\0')
        hKey = hRootKey;
    else if (RegOpenKeyW(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
        goto done;
 
    if (LoadStringW(hInst, IDS_NEW_KEY, szNewKeyFormat, ARRAY_SIZE(szNewKeyFormat)) <= 0)
        goto done;
 
    /* Need to create a new key with a unique name */
    do
    {
        wsprintf(szNewKey, szNewKeyFormat, iIndex++);
        nResult = RegCreateKeyExW(hKey, szNewKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hNewKey, &dwDisposition);
        if (hNewKey && dwDisposition == REG_OPENED_EXISTING_KEY)
        {
            RegCloseKey(hNewKey);
            hNewKey = NULL;
        }
        else if (!hNewKey)
        {
            InfoMessageBox(hFrameWnd, MB_OK | MB_ICONERROR, NULL, L"Cannot create new key!\n\nError Code: %d", nResult);
            goto done;
        }
    }
    while(!hNewKey);
 
    /* Insert the new key */
    hNewItem = InsertNode(hwndTV, hItem, szNewKey);
    if (!hNewItem)
        goto done;
 
    /* The new key's name is probably not appropriate yet */
    (void)TreeView_EditLabel(hwndTV, hNewItem);
 
    bSuccess = TRUE;
 
done:
    if (hKey != hRootKey && hKey)
        RegCloseKey(hKey);
    if (hNewKey)
        RegCloseKey(hNewKey);
    return bSuccess;
}

Referenced by _CmdWndProc().

CreateTreeView()

HWND CreateTreeView	(	HWND	hwndParent,
		LPWSTR	pHostName,
		HMENU	id
	)

Definition at line 733 of file treeview.c.

{
    RECT rcClient;
    HWND hwndTV;
 
    /* Get the dimensions of the parent window's client area, and create the tree view control.  */
    GetClientRect(hwndParent, &rcClient);
    hwndTV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEW, NULL,
                            WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT | TVS_EDITLABELS | TVS_SHOWSELALWAYS,
                            0, 0, rcClient.right, rcClient.bottom,
                            hwndParent, id, hInst, NULL);
    if (!hwndTV) return NULL;
 
    /* Initialize the image list, and add items to the control.  */
    if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName))
    {
        DestroyWindow(hwndTV);
        return NULL;
    }
    return hwndTV;
}

Referenced by ChildWndProc().

DeleteNode()

BOOL DeleteNode	(	HWND	hwndTV,
		HTREEITEM	hItem
	)

Definition at line 99 of file treeview.c.

{
    if (!hItem) hItem = TreeView_GetSelection(hwndTV);
    if (!hItem) return FALSE;
    return TreeView_DeleteItem(hwndTV, hItem);
}

DestroyTreeView()

void DestroyTreeView

(

HWND

hwndTV

)

Definition at line 755 of file treeview.c.

{
    HIMAGELIST himl;
 
    if (pathBuffer) HeapFree(GetProcessHeap(), 0, pathBuffer);
 
    /* Destroy the image list associated with the tree view control */
    himl = TreeView_GetImageList(hwndTV, TVSIL_NORMAL);
    if (himl) ImageList_Destroy(himl);
}

get_item_path()

static BOOL get_item_path ( HWND  hwndTV, HTREEITEM  hItem, HKEY *  phKey, LPWSTR *  pKeyPath, int *  pPathLen, int *  pMaxLen  )

static

Definition at line 25 of file treeview.c.

{
    TVITEMW item;
    size_t maxLen, len;
    LPWSTR newStr;
 
    item.mask = TVIF_PARAM;
    item.hItem = hItem;
    if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
 
    if (item.lParam)
    {
        /* found root key with valid key value */
        *phKey = (HKEY)item.lParam;
        return TRUE;
    }
 
    if(!get_item_path(hwndTV, TreeView_GetParent(hwndTV, hItem), phKey, pKeyPath, pPathLen, pMaxLen)) return FALSE;
    if (*pPathLen)
    {
        (*pKeyPath)[*pPathLen] = L'\\';
        ++(*pPathLen);
    }
 
    do
    {
        item.mask = TVIF_TEXT;
        item.hItem = hItem;
        item.pszText = *pKeyPath + *pPathLen;
        maxLen = *pMaxLen - *pPathLen;
        item.cchTextMax = (int) maxLen;
        if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
        len = wcslen(item.pszText);
        if (len < maxLen - 1)
        {
            *pPathLen += (int) len;
            break;
        }
        newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxLen * 2);
        if (!newStr) return FALSE;
        *pKeyPath = newStr;
        *pMaxLen *= 2;
    }
    while(TRUE);
 
    return TRUE;
}

Referenced by get_item_path(), and GetItemPath().

GetItemPath()

LPCWSTR GetItemPath	(	HWND	hwndTV,
		HTREEITEM	hItem,
		HKEY *	phRootKey
	)

Definition at line 73 of file treeview.c.

{
    int pathLen = 0, maxLen;
 
    *phRootKey = NULL;
 
    if (!pathBuffer)
        pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024);
    if (!pathBuffer)
        return NULL;
 
    *pathBuffer = UNICODE_NULL;
 
    maxLen = (int)HeapSize(GetProcessHeap(), 0, pathBuffer);
 
    if (!hItem)
    {
        hItem = TreeView_GetSelection(hwndTV);
    }
    if (maxLen == -1 || !hItem || !get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen))
    {
        return NULL;
    }
    return pathBuffer;
}

Referenced by _CmdWndProc(), ChildWndProc(), CreateNewKey(), ExportRegistryFile(), FindNext(), GetItemFullPath(), ImportRegistryFile(), ListWndNotifyProc(), LoadHive(), OnTreeExpanding(), RefreshTreeItem(), SaveSettings(), TreeWndNotifyProc(), UnloadHive(), UpdateAddress(), and UpdateStatusBar().

InitTreeViewImageLists()

static BOOL InitTreeViewImageLists ( HWND  hwndTV )

static

Definition at line 434 of file treeview.c.

{
    HIMAGELIST himl;  /* handle to image list  */
    HICON hico;       /* handle to icon  */
    INT cx = GetSystemMetrics(SM_CXSMICON);
    INT cy = GetSystemMetrics(SM_CYSMICON);
    HMODULE hShell32 = GetModuleHandleW(L"shell32.dll");
 
    /* Create the image list.  */
    if ((himl = ImageList_Create(cx, cy, ILC_MASK | ILC_COLOR32, 0, NUM_ICONS)) == NULL)
        return FALSE;
 
    /* Add the open file, closed file, and document bitmaps.  */
    hico = LoadImageW(hShell32,
                      MAKEINTRESOURCEW(IDI_SHELL_FOLDER_OPEN),
                      IMAGE_ICON,
                      cx,
                      cy,
                      LR_DEFAULTCOLOR);
    if (hico)
    {
        Image_Open = ImageList_AddIcon(himl, hico);
        DestroyIcon(hico);
    }
 
    hico = LoadImageW(hShell32,
                      MAKEINTRESOURCEW(IDI_SHELL_FOLDER),
                      IMAGE_ICON,
                      cx,
                      cy,
                      LR_DEFAULTCOLOR);
    if (hico)
    {
        Image_Closed = ImageList_AddIcon(himl, hico);
        DestroyIcon(hico);
    }
 
    hico = LoadImageW(hShell32,
                      MAKEINTRESOURCEW(IDI_SHELL_MY_COMPUTER),
                      IMAGE_ICON,
                      cx,
                      cy,
                      LR_DEFAULTCOLOR);
    if (hico)
    {
        Image_Root = ImageList_AddIcon(himl, hico);
        DestroyIcon(hico);
    }
 
    /* Fail if not all of the images were added.  */
    if (ImageList_GetImageCount(himl) < NUM_ICONS)
    {
        ImageList_Destroy(himl);
        return FALSE;
    }
 
    /* Associate the image list with the tree view control.  */
    (void)TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
 
    return TRUE;
}

Referenced by CreateTreeView().

InitTreeViewItems()

static BOOL InitTreeViewItems ( HWND  hwndTV, LPWSTR  pHostName  )

static

Definition at line 388 of file treeview.c.

{
    TVITEMW tvi;
    TVINSERTSTRUCTW tvins;
    HTREEITEM hRoot;
 
    tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
    /* Set the text of the item.  */
    tvi.pszText = pHostName;
    tvi.cchTextMax = wcslen(tvi.pszText);
    /* Assume the item is not a parent item, so give it an image.  */
    tvi.iImage = Image_Root;
    tvi.iSelectedImage = Image_Root;
    tvi.cChildren = 5;
    /* Save the heading level in the item's application-defined data area.  */
    tvi.lParam = (LPARAM)NULL;
    tvins.item = tvi;
    tvins.hInsertAfter = (HTREEITEM)TVI_FIRST;
    tvins.hParent = TVI_ROOT;
    /* Add the item to the tree view control.  */
    if (!(hRoot = TreeView_InsertItem(hwndTV, &tvins))) return FALSE;
 
    if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_CLASSES_ROOT", HKEY_CLASSES_ROOT, 1)) return FALSE;
    if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_CURRENT_USER", HKEY_CURRENT_USER, 1)) return FALSE;
    if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_LOCAL_MACHINE", HKEY_LOCAL_MACHINE, 1)) return FALSE;
    if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_USERS", HKEY_USERS, 1)) return FALSE;
    if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_CURRENT_CONFIG", HKEY_CURRENT_CONFIG, 1)) return FALSE;
 
    if (GetVersion() & 0x80000000)
    {
        /* Win9x specific key */
        if (!AddEntryToTree(hwndTV, hRoot, L"HKEY_DYN_DATA", HKEY_DYN_DATA, 1)) return FALSE;
    }
 
    /* expand and select host name */
    (void)TreeView_Expand(hwndTV, hRoot, TVE_EXPAND);
    (void)TreeView_Select(hwndTV, hRoot, TVGN_CARET);
    return TRUE;
}

Referenced by CreateTreeView().

InsertNode()

HTREEITEM InsertNode	(	HWND	hwndTV,
		HTREEITEM	hItem,
		LPWSTR	name
	)

Definition at line 328 of file treeview.c.

{
    WCHAR buf[MAX_NEW_KEY_LEN];
    HTREEITEM hNewItem = 0;
    TVITEMEXW item;
 
    /* Default to the current selection */
    if (!hItem)
    {
        hItem = TreeView_GetSelection(hwndTV);
        if (!hItem)
            return FALSE;
    }
 
    memset(&item, 0, sizeof(item));
    item.hItem = hItem;
    item.mask = TVIF_CHILDREN | TVIF_HANDLE | TVIF_STATE;
    if (!TreeView_GetItem(hwndTV, &item))
        return FALSE;
 
    if (item.state & TVIS_EXPANDEDONCE)
    {
        hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
        SendMessageW(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
    }
    else
    {
        item.mask = TVIF_CHILDREN | TVIF_HANDLE;
        item.hItem = hItem;
        item.cChildren = 1;
        if (!TreeView_SetItem(hwndTV, &item))
            return FALSE;
    }
 
    (void)TreeView_Expand(hwndTV, hItem, TVE_EXPAND);
    if (!hNewItem)
    {
        for(hNewItem = TreeView_GetChild(hwndTV, hItem); hNewItem; hNewItem = TreeView_GetNextSibling(hwndTV, hNewItem))
        {
            item.mask = TVIF_HANDLE | TVIF_TEXT;
            item.hItem = hNewItem;
            item.pszText = buf;
            item.cchTextMax = ARRAY_SIZE(buf);
            if (!TreeView_GetItem(hwndTV, &item)) continue;
            if (wcscmp(name, item.pszText) == 0) break;
        }
    }
    if (hNewItem) (void)TreeView_SelectItem(hwndTV, hNewItem);
 
    return hNewItem;
}

Referenced by CreateNewKey().

OnTreeExpanding()

BOOL OnTreeExpanding	(	HWND	hwndTV,
		NMTREEVIEW *	pnmtv
	)

Definition at line 496 of file treeview.c.

{
    DWORD dwCount, dwIndex, dwMaxSubKeyLen;
    HKEY hRoot, hNewKey, hKey;
    LPCWSTR keyPath;
    LPWSTR Name;
    LONG errCode;
    HCURSOR hcursorOld;
 
    static int expanding;
    if (expanding) return FALSE;
    if (pnmtv->itemNew.state & TVIS_EXPANDEDONCE )
    {
        return TRUE;
    }
    expanding = TRUE;
    hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
    SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
 
    keyPath = GetItemPath(hwndTV, pnmtv->itemNew.hItem, &hRoot);
    if (!keyPath) goto done;
 
    if (*keyPath)
    {
        errCode = RegOpenKeyExW(hRoot, keyPath, 0, KEY_READ, &hNewKey);
        if (errCode != ERROR_SUCCESS) goto done;
    }
    else
    {
        hNewKey = hRoot;
    }
 
    errCode = RegQueryInfoKeyW(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
    if (errCode != ERROR_SUCCESS) goto done;
    dwMaxSubKeyLen++; /* account for the \0 terminator */
    Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR));
    if (!Name) goto done;
 
    for (dwIndex = 0; dwIndex < dwCount; dwIndex++)
    {
        DWORD cName = dwMaxSubKeyLen, dwSubCount;
 
        errCode = RegEnumKeyExW(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
        if (errCode != ERROR_SUCCESS) continue;
        errCode = RegOpenKeyExW(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
        if (errCode == ERROR_SUCCESS)
        {
            errCode = RegQueryInfoKeyW(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
            RegCloseKey(hKey);
        }
        if (errCode != ERROR_SUCCESS) dwSubCount = 0;
        AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwSubCount);
    }
 
    SendMessageW(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM)pnmtv->itemNew.hItem);
 
    RegCloseKey(hNewKey);
    HeapFree(GetProcessHeap(), 0, Name);
 
done:
    SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
    SetCursor(hcursorOld);
    expanding = FALSE;
 
    return TRUE;
}

Referenced by TreeWndNotifyProc().

RefreshTreeItem()

BOOL RefreshTreeItem	(	HWND	hwndTV,
		HTREEITEM	hItem
	)

Definition at line 133 of file treeview.c.

{
    HKEY hRoot, hKey, hSubKey;
    HTREEITEM childItem;
    LPCWSTR KeyPath;
    DWORD dwCount, dwIndex, dwMaxSubKeyLen;
    LPWSTR Name = NULL;
    TVITEMW tvItem;
    LPWSTR pszNodes = NULL;
    BOOL bSuccess = FALSE;
    LPWSTR s;
    BOOL bAddedAny;
 
    KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
 
    if (*KeyPath)
    {
        if (RegOpenKeyExW(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
        {
            goto done;
        }
    }
    else
    {
        hKey = hRoot;
    }
 
    if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
    {
        goto done;
    }
 
    /* Set the number of children again */
    tvItem.mask = TVIF_CHILDREN;
    tvItem.hItem = hItem;
    tvItem.cChildren = dwCount;
    if (!TreeView_SetItem(hwndTV, &tvItem))
    {
        goto done;
    }
 
    /* We don't have to bother with the rest if it's not expanded. */
    if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDED) == 0)
    {
        RegCloseKey(hKey);
        bSuccess = TRUE;
        goto done;
    }
 
    dwMaxSubKeyLen++; /* account for the \0 terminator */
    if (!(Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR))))
    {
        goto done;
    }
    tvItem.cchTextMax = dwMaxSubKeyLen;
    /*if (!(tvItem.pszText = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR)))) {
        goto done;
    }*/
 
    /* Get all of the tree node siblings in one contiguous block of memory */
    {
        DWORD dwPhysicalSize = 0;
        DWORD dwActualSize = 0;
        DWORD dwNewPhysicalSize;
        LPWSTR pszNewNodes;
        DWORD dwStep = 10000;
 
        for (childItem = TreeView_GetChild(hwndTV, hItem); childItem;
                childItem = TreeView_GetNextSibling(hwndTV, childItem))
        {
 
            if (dwActualSize + dwMaxSubKeyLen + 1 > dwPhysicalSize)
            {
                dwNewPhysicalSize = dwActualSize + dwMaxSubKeyLen + 1 + dwStep;
 
                if (pszNodes)
                    pszNewNodes = (LPWSTR) HeapReAlloc(GetProcessHeap(), 0, pszNodes, dwNewPhysicalSize * sizeof(WCHAR));
                else
                    pszNewNodes = (LPWSTR) HeapAlloc(GetProcessHeap(), 0, dwNewPhysicalSize * sizeof(WCHAR));
                if (!pszNewNodes)
                    goto done;
 
                dwPhysicalSize = dwNewPhysicalSize;
                pszNodes = pszNewNodes;
            }
 
            tvItem.mask = TVIF_TEXT;
            tvItem.hItem = childItem;
            tvItem.pszText = &pszNodes[dwActualSize];
            tvItem.cchTextMax = dwPhysicalSize - dwActualSize;
            if (!TreeView_GetItem(hwndTV, &tvItem))
                goto done;
 
            dwActualSize += (DWORD) wcslen(&pszNodes[dwActualSize]) + 1;
        }
 
        if (pszNodes)
            pszNodes[dwActualSize] = L'\0';
    }
 
    /* Now go through all the children in the tree, and check if any have to be removed. */
    childItem = TreeView_GetChild(hwndTV, hItem);
    while (childItem)
    {
        HTREEITEM nextItem = TreeView_GetNextSibling(hwndTV, childItem);
        if (RefreshTreeItem(hwndTV, childItem) == FALSE)
        {
            (void)TreeView_DeleteItem(hwndTV, childItem);
        }
        childItem = nextItem;
    }
 
    /* Now go through all the children in the registry, and check if any have to be added. */
    bAddedAny = FALSE;
    for (dwIndex = 0; dwIndex < dwCount; dwIndex++)
    {
        DWORD cName = dwMaxSubKeyLen, dwSubCount;
        BOOL found;
 
        found = FALSE;
        if (RegEnumKeyExW(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS)
        {
            continue;
        }
 
        /* Check if the node is already in there. */
        if (pszNodes)
        {
            for (s = pszNodes; *s; s += wcslen(s) + 1)
            {
                if (!wcscmp(s, Name))
                {
                    found = TRUE;
                    break;
                }
            }
        }
 
        if (found == FALSE)
        {
            /* Find the number of children of the node. */
            dwSubCount = 0;
            if (RegOpenKeyExW(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS)
            {
                if (RegQueryInfoKeyW(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS)
                {
                    dwSubCount = 0;
                }
                RegCloseKey(hSubKey);
            }
 
            AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
            bAddedAny = TRUE;
        }
    }
    RegCloseKey(hKey);
 
    if (bAddedAny)
        SendMessageW(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 
    bSuccess = TRUE;
 
done:
    if (pszNodes)
        HeapFree(GetProcessHeap(), 0, pszNodes);
    if (Name)
        HeapFree(GetProcessHeap(), 0, Name);
    return bSuccess;
}

Referenced by RefreshTreeItem(), and RefreshTreeView().

RefreshTreeView()

BOOL RefreshTreeView

(

HWND

hwndTV

)

Definition at line 303 of file treeview.c.

{
    HTREEITEM hItem;
    HTREEITEM hSelectedItem;
    HCURSOR hcursorOld;
 
    hSelectedItem = TreeView_GetSelection(hwndTV);
    hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
    SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
 
    hItem = TreeView_GetChild(hwndTV, TreeView_GetRoot(hwndTV));
    while (hItem)
    {
        RefreshTreeItem(hwndTV, hItem);
        hItem = TreeView_GetNextSibling(hwndTV, hItem);
    }
 
    SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
    SetCursor(hcursorOld);
 
    /* We reselect the currently selected node, this will prompt a refresh of the listview. */
    (void)TreeView_SelectItem(hwndTV, hSelectedItem);
    return TRUE;
}

Referenced by _CmdWndProc(), ImportRegistryFile(), LoadHive(), and UnloadHive().

SelectNode()

BOOL SelectNode	(	HWND	hwndTV,
		LPCWSTR	keyPath
	)

Definition at line 766 of file treeview.c.

{
    HTREEITEM hRoot, hItem;
    HTREEITEM hChildItem;
    WCHAR szPathPart[128];
    WCHAR szBuffer[128];
    LPCWSTR s;
    TVITEMW tvi;
 
    /* Load "My Computer" string... */
    LoadStringW(hInst, IDS_MY_COMPUTER, szBuffer, ARRAY_SIZE(szBuffer));
    StringCbCatW(szBuffer, sizeof(szBuffer), L"\\");
 
    /* ... and remove it from the key path */
    if (!_wcsnicmp(keyPath, szBuffer, wcslen(szBuffer)))
        keyPath += wcslen(szBuffer);
 
    /* Reinitialize szBuffer */
    szBuffer[0] = L'\0';
 
    hRoot = TreeView_GetRoot(hwndTV);
    hItem = hRoot;
 
    while(keyPath[0])
    {
        size_t copyLength;
        s = wcschr(keyPath, L'\\');
        if (s != NULL)
        {
            copyLength = (s - keyPath) * sizeof(WCHAR);
        }
        else
        {
            copyLength = sizeof(szPathPart);
        }
        StringCbCopyNW(szPathPart, sizeof(szPathPart), keyPath, copyLength);
 
        /* Special case for root to expand root key abbreviations */
        if (hItem == hRoot)
        {
            if (!_wcsicmp(szPathPart, L"HKCR"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_CLASSES_ROOT");
            else if (!_wcsicmp(szPathPart, L"HKCU"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_CURRENT_USER");
            else if (!_wcsicmp(szPathPart, L"HKLM"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_LOCAL_MACHINE");
            else if (!_wcsicmp(szPathPart, L"HKU"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_USERS");
            else if (!_wcsicmp(szPathPart, L"HKCC"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_CURRENT_CONFIG");
            else if (!_wcsicmp(szPathPart, L"HKDD"))
                StringCbCopyW(szPathPart, sizeof(szPathPart), L"HKEY_DYN_DATA");
        }
 
        for (hChildItem = TreeView_GetChild(hwndTV, hItem); hChildItem;
                hChildItem = TreeView_GetNextSibling(hwndTV, hChildItem))
        {
            memset(&tvi, 0, sizeof(tvi));
            tvi.hItem = hChildItem;
            tvi.mask = TVIF_TEXT | TVIF_CHILDREN;
            tvi.pszText = szBuffer;
            tvi.cchTextMax = ARRAY_SIZE(szBuffer);
 
            (void)TreeView_GetItem(hwndTV, &tvi);
 
            if (!_wcsicmp(szBuffer, szPathPart))
                break;
        }
 
        if (!hChildItem)
            return FALSE;
 
        if (tvi.cChildren > 0)
        {
            if (!TreeView_Expand(hwndTV, hChildItem, TVE_EXPAND))
                return FALSE;
        }
 
        keyPath = s ? s + 1 : L"";
        hItem = hChildItem;
    }
 
    (void)TreeView_SelectItem(hwndTV, hItem);
    (void)TreeView_EnsureVisible(hwndTV, hItem);
 
    return TRUE;
}

Referenced by _CmdWndProc(), AddressBarProc(), ChooseFavorite(), FindNext(), and LoadSettings().

StartKeyRename()

HWND StartKeyRename

(

HWND

hwndTV

)

Definition at line 380 of file treeview.c.

{
    HTREEITEM hItem;
 
    if(!(hItem = TreeView_GetSelection(hwndTV))) return 0;
    return TreeView_EditLabel(hwndTV, hItem);
}

TreeWndNotifyProc()

BOOL TreeWndNotifyProc	(	HWND	hWnd,
		WPARAM	wParam,
		LPARAM	lParam,
		BOOL *	Result
	)

Definition at line 622 of file treeview.c.

{
    UNREFERENCED_PARAMETER(wParam);
    *Result = TRUE;
 
    switch (((LPNMHDR)lParam)->code)
    {
        case TVN_ITEMEXPANDING:
            *Result = !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
            return TRUE;
        case TVN_SELCHANGED:
        {
            NMTREEVIEW* pnmtv = (NMTREEVIEW*)lParam;
            /* Get the parent of the current item */
            HTREEITEM hParentItem = TreeView_GetParent(g_pChildWnd->hTreeWnd, pnmtv->itemNew.hItem);
 
            UpdateAddress(pnmtv->itemNew.hItem, NULL, NULL, TRUE);
 
            /* Disable the Permissions and new key menu items for 'My Computer' */
            EnableMenuItem(hMenuFrame, ID_EDIT_PERMISSIONS, MF_BYCOMMAND | (hParentItem ? MF_ENABLED : MF_GRAYED));
            EnableMenuItem(hMenuFrame, ID_EDIT_NEW_KEY, MF_BYCOMMAND | (hParentItem ? MF_ENABLED : MF_GRAYED));
 
            /*
             * Disable Delete/Rename menu options for 'My Computer' (first item so doesn't have any parent)
             * and HKEY_* keys (their parent is 'My Computer' and the previous remark applies).
             */
            if (!hParentItem || !TreeView_GetParent(g_pChildWnd->hTreeWnd, hParentItem))
            {
                EnableMenuItem(hMenuFrame , ID_EDIT_DELETE, MF_BYCOMMAND | MF_GRAYED);
                EnableMenuItem(hMenuFrame , ID_EDIT_RENAME, MF_BYCOMMAND | MF_GRAYED);
                EnableMenuItem(hPopupMenus, ID_TREE_DELETE, MF_BYCOMMAND | MF_GRAYED);
                EnableMenuItem(hPopupMenus, ID_TREE_RENAME, MF_BYCOMMAND | MF_GRAYED);
            }
            else
            {
                EnableMenuItem(hMenuFrame , ID_EDIT_DELETE, MF_BYCOMMAND | MF_ENABLED);
                EnableMenuItem(hMenuFrame , ID_EDIT_RENAME, MF_BYCOMMAND | MF_ENABLED);
                EnableMenuItem(hPopupMenus, ID_TREE_DELETE, MF_BYCOMMAND | MF_ENABLED);
                EnableMenuItem(hPopupMenus, ID_TREE_RENAME, MF_BYCOMMAND | MF_ENABLED);
            }
 
            return TRUE;
        }
        case NM_SETFOCUS:
            g_pChildWnd->nFocusPanel = 0;
            break;
        case TVN_BEGINLABELEDIT:
        {
            LPNMTVDISPINFO ptvdi = (LPNMTVDISPINFO)lParam;
            /* cancel label edit for rootkeys */
            if (!TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem) ||
                !TreeView_GetParent(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem)))
            {
                *Result = TRUE;
            }
            else
            {
                *Result = FALSE;
            }
            return TRUE;
        }
        case TVN_ENDLABELEDIT:
        {
            LPCWSTR keyPath;
            HKEY hRootKey;
            HKEY hKey = NULL;
            LPNMTVDISPINFO ptvdi = (LPNMTVDISPINFO)lParam;
            LONG nRenResult;
            LONG lResult = TRUE;
            WCHAR szBuffer[MAX_PATH];
            WCHAR Caption[128];
 
            if (ptvdi->item.pszText)
            {
                keyPath = GetItemPath(g_pChildWnd->hTreeWnd, TreeView_GetParent(g_pChildWnd->hTreeWnd, ptvdi->item.hItem), &hRootKey);
                if (wcslen(keyPath))
                    _snwprintf(szBuffer, ARRAY_SIZE(szBuffer), L"%s\\%s", keyPath, ptvdi->item.pszText);
                else
                    _snwprintf(szBuffer, ARRAY_SIZE(szBuffer), L"%s", ptvdi->item.pszText);
                keyPath = GetItemPath(g_pChildWnd->hTreeWnd, ptvdi->item.hItem, &hRootKey);
                if (RegOpenKeyExW(hRootKey, szBuffer, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
                {
                    lResult = FALSE;
                    RegCloseKey(hKey);
                    TreeView_EditLabel(g_pChildWnd->hTreeWnd, ptvdi->item.hItem);
                }
                else
                {
                    nRenResult = RenameKey(hRootKey, keyPath, ptvdi->item.pszText);
                    if (nRenResult != ERROR_SUCCESS)
                    {
                        LoadStringW(hInst, IDS_ERROR, Caption, ARRAY_SIZE(Caption));
                        ErrorMessageBox(hWnd, Caption, nRenResult);
                        lResult = FALSE;
                    }
                    else
                        UpdateAddress(ptvdi->item.hItem, hRootKey, szBuffer, FALSE);
                }
                *Result = lResult;
            }
            return TRUE;
        }
    }
    return FALSE;
}

Referenced by ChildWndProc().

Variable Documentation

Image_Closed

int Image_Closed

static

Definition at line 13 of file treeview.c.

Referenced by AddEntryToTree(), and InitTreeViewImageLists().

Image_Open

int Image_Open

static

Definition at line 12 of file treeview.c.

Referenced by AddEntryToTree(), and InitTreeViewImageLists().

Image_Root

int Image_Root

static

Definition at line 14 of file treeview.c.

Referenced by InitTreeViewImageLists(), and InitTreeViewItems().

pathBuffer

LPWSTR pathBuffer

static

Definition at line 16 of file treeview.c.

Referenced by DestroyTreeView(), GetItemPath(), test_listbox_dlgdir(), and test_listbox_LB_DIR().