157 lines
3.7 KiB
C++
157 lines
3.7 KiB
C++
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//____________________________________________________________________________
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1996 - 1999
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//
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// File: API.c
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//
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// Contents:
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//
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// APIs: MMCPropertyChangeNotify
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//
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// History: 10/15/1996 RaviR Created
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//____________________________________________________________________________
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//
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#include <wtypes.h>
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#include "objbase.h"
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#ifndef DECLSPEC_UUID
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#if _MSC_VER >= 1100
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#define DECLSPEC_UUID(x) __declspec(uuid(x))
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#else
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#define DECLSPEC_UUID(x)
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#endif
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#endif
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#include "commctrl.h" // for LV_ITEMW needed by ndmgrpriv.h
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#include "mmc.h"
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#include "ndmgr.h"
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#include "ndmgrpriv.h"
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#include "mmcptrs.h"
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#include "ndmgrp.h"
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#include "amcmsgid.h"
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HRESULT MMCPropertyChangeNotify(LONG_PTR lNotifyHandle, LPARAM lParam)
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{
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// Note - the property sheet is in a different thread than the console.
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// So init COM.
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HRESULT hr = CoInitialize(NULL);
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if (SUCCEEDED(hr))
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{
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LPPROPERTYSHEETNOTIFY ppsn;
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hr = CoCreateInstance (CLSID_NodeManager, NULL, CLSCTX_INPROC,
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IID_IPropertySheetNotify,
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reinterpret_cast<void **>(&ppsn));
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if (SUCCEEDED(hr))
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{
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LPPROPERTYNOTIFYINFO ppni = reinterpret_cast<LPPROPERTYNOTIFYINFO>(lNotifyHandle);
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ppsn->Notify (ppni, lParam);
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ppsn->Release();
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}
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// Uninit COM
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CoUninitialize();
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}
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return (hr);
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}
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HRESULT MMCPropertyHelp (LPOLESTR pszHelpTopic)
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{
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// find the MMC main window for this process
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HWND hwndFrame = NULL;
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const DWORD dwCurrentPid = GetCurrentProcessId();
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while (1)
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{
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// find an MMC frame window
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hwndFrame = FindWindowEx (NULL, hwndFrame, MAINFRAME_CLASS_NAME, NULL);
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if (hwndFrame == NULL)
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break;
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// found a frame, is it on this process?
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DWORD dwWindowPid;
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GetWindowThreadProcessId (hwndFrame, &dwWindowPid);
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if (dwCurrentPid == dwWindowPid)
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break;
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}
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if (hwndFrame == NULL)
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return (E_UNEXPECTED);
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return ((HRESULT) SendMessage (hwndFrame, MMC_MSG_SHOW_SNAPIN_HELP_TOPIC,
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NULL, reinterpret_cast<LPARAM>(pszHelpTopic)));
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}
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HRESULT MMCFreeNotifyHandle(LONG_PTR lNotifyHandle)
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{
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if (lNotifyHandle == NULL)
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return E_INVALIDARG;
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LPPROPERTYNOTIFYINFO ppni =
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reinterpret_cast<LPPROPERTYNOTIFYINFO>(lNotifyHandle);
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BOOL bResult;
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if ((bResult = IsBadReadPtr(ppni, sizeof(PROPERTYNOTIFYINFO))) == FALSE)
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::GlobalFree(ppni);
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return ((bResult == FALSE) ? S_OK : E_FAIL);
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}
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HRESULT MMCIsMTNodeValid(void* pMTNode, BOOL bReset)
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{
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HRESULT hr = S_FALSE;
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HWND hWnd = NULL;
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DWORD dwPid = 0;
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DWORD dwTid = 0;
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if (pMTNode == NULL)
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return hr;
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while (1)
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{
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hWnd = ::FindWindowEx(NULL, hWnd, DATAWINDOW_CLASS_NAME, NULL);
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// No windows found
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if (hWnd == NULL)
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break;
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// Check if the window belongs to the current process
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dwTid = ::GetWindowThreadProcessId(hWnd, &dwPid);
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if (dwPid != ::GetCurrentProcessId())
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continue;
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// Get the extra bytes and compare the data objects
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if (GetClassLong(hWnd, GCL_CBWNDEXTRA) != WINDOW_DATA_SIZE)
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break;
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DataWindowData* pData = GetDataWindowData (hWnd);
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if (pData == NULL)
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break;
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if (pData->lpMasterNode == reinterpret_cast<LONG_PTR>(pMTNode))
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{
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// clear the data out if the user requests it
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if (bReset)
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pData->lpMasterNode = NULL;
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hr = S_OK;
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break;
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}
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}
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return hr;
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}
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