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fldoppsx.cpp
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 4k
Category:

Windows Kernel

Development Platform:

Visual C++

fldoppsx.cpp：Code Content
  1. //
  2. // fldoppsx - Folder Options Property Sheet Extension
  3. //
  5. #include "stdafx.h"
  6. #pragma hdrstop
  8. CFolderOptionsPsx::CFolderOptionsPsx() : m_cRef(1)
  9. {
  10.     DllAddRef();
  11. }
  13. CFolderOptionsPsx::~CFolderOptionsPsx()
  14. {
  15.     ATOMICRELEASE(m_pbs2);
  16.     ATOMICRELEASE(m_pgfs);
  17.     DllRelease();
  18. }
  20. ULONG CFolderOptionsPsx::AddRef()
  21. {
  22.     return InterlockedIncrement(&m_cRef);
  23. }
  25. ULONG CFolderOptionsPsx::Release()
  26. {
  27.     ULONG ulResult = InterlockedDecrement(&m_cRef);
  29.     if (ulResult == 0) {
  30.         delete this;
  31.     }
  33.     return ulResult;
  34. }
  36. HRESULT CFolderOptionsPsx::QueryInterface(REFIID riid, void **ppvObj)
  37. {
  38.     static const QITAB qit[] = {
  39.         QITABENT(CFolderOptionsPsx, IShellPropSheetExt),
  40.         QITABENT(CFolderOptionsPsx, IShellExtInit),
  41.         QITABENT(CFolderOptionsPsx, IObjectWithSite),
  42.         { 0 },
  43.     };
  45.     return QISearch(this, qit, riid, ppvObj);
  46. }
  48. UINT CALLBACK CFolderOptionsPsx::PropCallback(HWND hwnd, UINT uMsg, LPPROPSHEETPAGE ppsp)
  49. {
  50.     CFolderOptionsPsx *pfolder = (CFolderOptionsPsx *)ppsp->lParam;
  52.     switch (uMsg)
  53.     {
  54.     case PSPCB_RELEASE:
  55.         pfolder->Release();
  56.         break;
  57.     }
  59.     return TRUE;
  60. }
  64. //
  65. //  We add two pages.
  66. //
  67. //  1. "General"    - options.cpp
  68. //  2. "View"       - advanced.cpp
  69. //
  70. //  The rule for IShellPropSheetExt is that AddPages can be called
  71. //  only once, so we don't have to worry about a second call accidentally
  72. //  screwing up our IBrowserService pointer.
  73. //
  74. //
  75. HRESULT CFolderOptionsPsx::AddPages(LPFNADDPROPSHEETPAGE AddPage, LPARAM lParam)
  76. {
  77.     if (!m_pgfs)
  78.     {
  79.         HRESULT hres = CoCreateInstance(CLSID_GlobalFolderSettings, NULL, CLSCTX_INPROC_SERVER, 
  80.             IID_IGlobalFolderSettings, (void **)&m_pgfs);
  81.         if (FAILED(hres))
  82.             return hres;
  83.     }
  85.     /*
  86.      *  We can limp along without an IBrowserService.  It means that
  87.      *  we are only modifying global settings, not per-folder settings.
  88.      */
  90.     if (!m_pbs2) 
  91.     {
  92.         IUnknown_QueryService(_punkSite, SID_SShellBrowser,
  93.                               IID_IBrowserService2, (void **)&m_pbs2);
  94.     }
  96.     PROPSHEETPAGE psp;
  98.     /*
  99.      *  We used to do this only if we aren't a rooted Explorer,
  100.      *  but TOuzts says to do it always.
  101.      *
  102.      *  The lParam is a pointer back to ourselves so the page
  103.      *  can figure out why it was created and so the two pages
  104.      *  can talk to each other.
  105.      */
  106.     psp.dwSize = SIZEOF(psp);
  107.     psp.dwFlags = PSP_DEFAULT | PSP_USECALLBACK;
  108.     psp.hInstance = HINST_THISDLL;
  109.     psp.pfnCallback = CFolderOptionsPsx::PropCallback;
  110.     psp.lParam = (LPARAM)this;
  113.     // "General" page.
  114.     psp.pszTemplate = MAKEINTRESOURCE(IDD_FOLDEROPTIONS);
  115.     psp.pfnDlgProc = FolderOptionsDlgProc;
  116.     HPROPSHEETPAGE hpage = CreatePropertySheetPage(&psp);
  117.     if (hpage)
  118.     {
  119.         AddRef();
  120.         if (!AddPage(hpage, lParam))
  121.         {
  122.             DestroyPropertySheetPage(hpage);
  123.             Release();
  124.         }
  125.     }
  127.     // "View" page.
  128.     psp.pszTemplate = MAKEINTRESOURCE(IDD_ADVANCEDOPTIONS);
  129.     psp.pfnDlgProc = AdvancedOptionsDlgProc;
  131.     hpage = CreatePropertySheetPage(&psp);
  132.     if (hpage)
  133.     {
  134.         AddRef();
  135.         if (!AddPage(hpage, lParam))
  136.         {
  137.             DestroyPropertySheetPage(hpage);
  138.             Release();
  139.         }
  140.     }
  142.     return S_OK;
  143. }
  145. HRESULT CFolderOptionsPsx::ReplacePage(UINT uPageID, LPFNADDPROPSHEETPAGE lpfnReplaceWith, LPARAM lParam)
  146. {
  147.     return S_OK;
  148. }
  150. HRESULT CFolderOptionsPsx::Initialize(LPCITEMIDLIST pidlFolder, IDataObject *pdtobj, HKEY hkeyProgID)
  151. {
  152.     return S_OK;
  153. }
  155. STDAPI CFolderOptionsPsx_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppvOut)
  156. {
  157.     CFolderOptionsPsx *pfopt = new CFolderOptionsPsx();
  158.     if (pfopt) 
  159.     {
  160.         HRESULT hres = pfopt->QueryInterface(riid, ppvOut);
  161.         pfopt->Release();
  162.         return hres;
  163.     }
  165.     *ppvOut = NULL;
  166.     return E_OUTOFMEMORY;
  167. }