333 lines
8.6 KiB
C++
333 lines
8.6 KiB
C++
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//-----------------------------------------------------------------------------
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// File: registry.cpp
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//
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// Desc: Contains COM register and unregister functions for the UI.
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//
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// Copyright (C) 1999-2000 Microsoft Corporation. All Rights Reserved.
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//-----------------------------------------------------------------------------
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#include "common.hpp"
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////////////////////////////////////////////////////////
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//
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// Internal helper functions prototypes
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//
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// Set the given key and its value.
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BOOL setKeyAndValue(LPCTSTR pszPath,
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LPCTSTR szSubkey,
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LPCTSTR szValue);
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// Set named value.
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BOOL setNamedValue(LPCTSTR pszPath,
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LPCTSTR szSubkey,
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LPCTSTR szKeyName,
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LPCTSTR szValue);
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// Convert a CLSID into a char string.
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void CLSIDtochar(const CLSID& clsid,
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LPTSTR szCLSID,
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int length);
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// Delete szKeyChild and all of its descendents.
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LONG recursiveDeleteKey(HKEY hKeyParent, LPCTSTR szKeyChild);
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////////////////////////////////////////////////////////
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//
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// Constants
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//
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// Size of a CLSID as a string
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const int CLSID_STRING_SIZE = 39 ;
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/////////////////////////////////////////////////////////
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//
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// Public function implementation
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//
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//
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// Register the component in the registry.
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//
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HRESULT RegisterServer(HMODULE hModule, // DLL module handle
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const CLSID& clsid, // Class ID
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LPCTSTR szFriendlyName, // Friendly Name
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LPCTSTR szVerIndProgID, // Programmatic
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LPCTSTR szProgID) // IDs
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{
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// Get server location.
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TCHAR szModule[512];
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DWORD dwResult =
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::GetModuleFileName(hModule,
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szModule,
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sizeof(szModule)/sizeof(TCHAR));
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if (!dwResult) return E_FAIL;
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// Convert the CLSID into a char.
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TCHAR szCLSID[CLSID_STRING_SIZE];
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CLSIDtochar(clsid, szCLSID, sizeof(szCLSID)/sizeof(TCHAR));
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// Build the key CLSID\\{...}
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TCHAR szKey[64];
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_tcscpy(szKey, _T("CLSID\\"));
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_tcscat(szKey, szCLSID);
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TCHAR szThreadKey[64];
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_tcscpy(szThreadKey, szKey);
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_tcscat(szThreadKey, _T("\\InProcServer32"));
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// Add the CLSID to the registry.
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setKeyAndValue(szKey, NULL, szFriendlyName);
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// Add the server filename subkey under the CLSID key.
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setKeyAndValue(szKey, _T("InProcServer32"), szModule);
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// Add the threading model subkey under the CLSID key
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setNamedValue(szKey, _T("InProcServer32"), _T("ThreadingModel"), _T("Both"));
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// Add the ProgID subkey under the CLSID key.
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setKeyAndValue(szKey, _T("ProgID"), szProgID);
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// Add the version-independent ProgID subkey under CLSID key.
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setKeyAndValue(szKey, _T("VersionIndependentProgID"),
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szVerIndProgID);
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// Add the version-independent ProgID subkey under HKEY_CLASSES_ROOT.
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setKeyAndValue(szVerIndProgID, NULL, szFriendlyName);
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setKeyAndValue(szVerIndProgID, _T("CLSID"), szCLSID);
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setKeyAndValue(szVerIndProgID, _T("CurVer"), szProgID);
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// Add the versioned ProgID subkey under HKEY_CLASSES_ROOT.
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setKeyAndValue(szProgID, NULL, szFriendlyName);
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setKeyAndValue(szProgID, _T("CLSID"), szCLSID);
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return S_OK;
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}
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//
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// Remove the component from the registry.
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//
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LONG UnregisterServer(const CLSID& clsid, // Class ID
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LPCTSTR szVerIndProgID, // Programmatic
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LPCTSTR szProgID) // IDs
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{
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// Convert the CLSID into a char.
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TCHAR szCLSID[CLSID_STRING_SIZE];
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CLSIDtochar(clsid, szCLSID, sizeof(szCLSID)/sizeof(TCHAR));
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// Build the key CLSID\\{...}
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TCHAR szKey[64];
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_tcscpy(szKey, _T("CLSID\\"));
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_tcscat(szKey, szCLSID);
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// Delete the CLSID Key - CLSID\{...}
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LONG lResult = recursiveDeleteKey(HKEY_CLASSES_ROOT, szKey);
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assert((lResult == ERROR_SUCCESS) ||
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(lResult == ERROR_FILE_NOT_FOUND)); // Subkey may not exist.
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// Delete the version-independent ProgID Key.
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lResult = recursiveDeleteKey(HKEY_CLASSES_ROOT, szVerIndProgID);
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assert((lResult == ERROR_SUCCESS) ||
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(lResult == ERROR_FILE_NOT_FOUND)); // Subkey may not exist.
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// Delete the ProgID key.
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lResult = recursiveDeleteKey(HKEY_CLASSES_ROOT, szProgID);
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assert((lResult == ERROR_SUCCESS) ||
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(lResult == ERROR_FILE_NOT_FOUND)); // Subkey may not exist.
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return S_OK;
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}
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///////////////////////////////////////////////////////////
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//
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// Internal helper functions
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//
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// Convert a CLSID to a char string.
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void CLSIDtochar(const CLSID& clsid,
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LPTSTR szCLSID,
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int length)
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{
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if (length < CLSID_STRING_SIZE)
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return;
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// Get CLSID
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LPOLESTR wszCLSID = NULL;
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HRESULT hr = StringFromCLSID(clsid, &wszCLSID);
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assert(SUCCEEDED(hr));
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if (!wszCLSID) return;
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#ifdef _UNICODE
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_tcsncpy(szCLSID, wszCLSID, length);
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#else
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// Covert from wide characters to non-wide.
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wcstombs(szCLSID, wszCLSID, length);
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#endif
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// Free memory.
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CoTaskMemFree(wszCLSID);
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}
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//
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// Delete a key and all of its descendents.
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//
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LONG recursiveDeleteKey(HKEY hKeyParent, // Parent of key to delete
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LPCTSTR lpszKeyChild) // Key to delete
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{
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// Open the child.
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HKEY hKeyChild;
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LONG lRes = RegOpenKeyEx(hKeyParent, lpszKeyChild, 0,
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KEY_ALL_ACCESS, &hKeyChild);
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if (lRes != ERROR_SUCCESS)
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{
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return lRes;
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}
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// Enumerate all of the decendents of this child.
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FILETIME time;
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TCHAR szBuffer[256];
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DWORD dwSize = 256;
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while (RegEnumKeyEx(hKeyChild, 0, szBuffer, &dwSize, NULL,
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NULL, NULL, &time) == S_OK)
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{
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// Delete the decendents of this child.
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lRes = recursiveDeleteKey(hKeyChild, szBuffer);
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if (lRes != ERROR_SUCCESS)
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{
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// Cleanup before exiting.
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RegCloseKey(hKeyChild);
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return lRes;
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}
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dwSize = 256;
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}
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// Close the child.
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RegCloseKey(hKeyChild);
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// Delete this child.
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return RegDeleteKey(hKeyParent, lpszKeyChild);
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}
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//
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// Create a key and set its value.
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//@@BEGIN_INTERNAL
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// - This helper function was borrowed and modifed from
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// Kraig Brockschmidt's book Inside OLE.
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//@@END_INTERNAL
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//
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BOOL setKeyAndValue(LPCTSTR szKey,
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LPCTSTR szSubkey,
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LPCTSTR szValue)
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{
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HKEY hKey;
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LPTSTR szKeyBuf;
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if (szKey == NULL) return FALSE;
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// Allocate space
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szKeyBuf = new TCHAR[lstrlen(szKey) + lstrlen(szSubkey) + 2];
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if (!szKeyBuf) return FALSE;
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// Copy keyname into buffer.
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_tcscpy(szKeyBuf, szKey);
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// Add subkey name to buffer.
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if (szSubkey != NULL)
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{
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//@@BEGIN_MSINTERNAL
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/*
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/* PREFIX seems to think that there is a bug here (Whistler 171821)
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/* and that szKeyBuf is uninitilaized -- but we assert that szKey is not NULL
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/* and then initialize szKeyBuf by _tcscpy() above.
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*/
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//@@END_MSINTERNAL
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_tcscat(szKeyBuf, _T("\\"));
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_tcscat(szKeyBuf, szSubkey );
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}
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// Create and open key and subkey.
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long lResult = RegCreateKeyEx(HKEY_CLASSES_ROOT,
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szKeyBuf,
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0, NULL, REG_OPTION_NON_VOLATILE,
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KEY_ALL_ACCESS, NULL,
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&hKey, NULL);
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if (lResult != ERROR_SUCCESS)
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{
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delete[] szKeyBuf;
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return FALSE;
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}
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// Set the Value.
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if (szValue != NULL)
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{
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RegSetValueEx(hKey, NULL, 0, REG_SZ,
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(BYTE *)szValue,
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sizeof(TCHAR) * ( _tcslen(szValue)+1) );
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}
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RegCloseKey(hKey);
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delete[] szKeyBuf;
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return TRUE;
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}
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//
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// Create a key and set its value.
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BOOL setNamedValue(LPCTSTR szKey,
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LPCTSTR szSubkey,
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LPCTSTR szKeyName,
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LPCTSTR szValue)
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{
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HKEY hKey;
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LPTSTR szKeyBuf;
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if (szKey == NULL) return FALSE;
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// Allocate space
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szKeyBuf = new TCHAR[lstrlen(szKey) + lstrlen(szSubkey) + 2];
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if (!szKeyBuf) return FALSE;
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// Copy keyname into buffer.
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_tcscpy(szKeyBuf, szKey);
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// Add subkey name to buffer.
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if (szSubkey != NULL)
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{
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//@@BEGIN_MSINTERNAL
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/*
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/* PREFIX seems to think that there is a bug here (Whistler 171820)
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/* and that szKeyBuf is uninitilaized -- but we assert that szKey is not NULL
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/* and then initialize szKeyBuf by _tcscpy() above.
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*/
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//@@END_MSINTERNAL
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_tcscat(szKeyBuf, _T("\\"));
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_tcscat(szKeyBuf, szSubkey );
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}
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// Create and open key and subkey.
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long lResult = RegCreateKeyEx(HKEY_CLASSES_ROOT,
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szKeyBuf,
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0, NULL, REG_OPTION_NON_VOLATILE,
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KEY_ALL_ACCESS, NULL,
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&hKey, NULL);
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if (lResult != ERROR_SUCCESS)
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{
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delete[] szKeyBuf;
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return FALSE ;
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}
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// Set the Value.
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if (szValue != NULL)
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{
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RegSetValueEx(hKey, szKeyName, 0, REG_SZ,
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(BYTE *)szValue,
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sizeof(TCHAR) * ( _tcslen(szValue)+1) );
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}
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RegCloseKey(hKey);
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delete[] szKeyBuf;
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return TRUE;
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}
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