reactos/dll/shellext/acppage/ACPPage.cpp

   1 /*
   2  * Copyright 2015 Mark Jansen
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "precomp.h"
  20
  21 #include <shellutils.h>
  22
  23 HMODULE g_hModule = NULL;
  24 LONG g_ModuleRefCnt = 0;
  25
  26 class CLayerUIPropPageModule : public CComModule
  27 {
  28 public:
  29     void Term()
  30     {
  31         CComModule::Term();
  32     }
  33 };
  34
  35 BEGIN_OBJECT_MAP(ObjectMap)
  36     OBJECT_ENTRY(CLSID_CLayerUIPropPage, CLayerUIPropPage)
  37 END_OBJECT_MAP()
  38
  39 CLayerUIPropPageModule gModule;
  40
  41 EXTERN_C
  42 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
  43 {
  44     switch (dwReason)
  45     {
  46     case DLL_PROCESS_ATTACH:
  47         DisableThreadLibraryCalls(hInstance);
  48         g_hModule = hInstance;
  49         gModule.Init(ObjectMap, hInstance, NULL);
  50         break;
  51     }
  52
  53     return(TRUE);
  54 }
  55
  56 STDAPI DllCanUnloadNow()
  57 {
  58     if (g_ModuleRefCnt)
  59         return S_FALSE;
  60     return gModule.DllCanUnloadNow();
  61 }
  62
  63 STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
  64 {
  65     return gModule.DllGetClassObject(rclsid, riid, ppv);
  66 }
  67
  68 STDAPI DllRegisterServer()
  69 {
  70     HRESULT hr;
  71
  72     hr = gModule.DllRegisterServer(FALSE);
  73     if (FAILED(hr))
  74         return hr;
  75
  76     hr = gModule.UpdateRegistryFromResource(IDR_ACPPAGE, TRUE, NULL);
  77     if (FAILED(hr))
  78         return hr;
  79
  80     return S_OK;
  81 }
  82
  83 STDAPI DllUnregisterServer()
  84 {
  85     HRESULT hr;
  86
  87     hr = gModule.DllUnregisterServer(FALSE);
  88     if (FAILED(hr))
  89         return hr;
  90
  91     hr = gModule.UpdateRegistryFromResource(IDR_ACPPAGE, FALSE, NULL);
  92     if (FAILED(hr))
  93         return hr;
  94
  95     return S_OK;
  96 }
  97
  98 struct CCoInit
  99 {
 100     CCoInit() { hres = CoInitialize(NULL); }
 101     ~CCoInit() { if (SUCCEEDED(hres)) { CoUninitialize(); } }
 102     HRESULT hres;
 103 };
 104
 105 EXTERN_C
 106 BOOL WINAPI GetExeFromLnk(PCWSTR pszLnk, PWSTR pszExe, size_t cchSize)
 107 {
 108     CCoInit init;
 109     if (FAILED(init.hres))
 110         return FALSE;
 111
 112     CComPtr<IShellLinkW> spShellLink;
 113     if (FAILED(CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IShellLinkW, &spShellLink))))
 114         return FALSE;
 115
 116     CComPtr<IPersistFile> spPersistFile;
 117     if (FAILED(spShellLink->QueryInterface(IID_PPV_ARG(IPersistFile, &spPersistFile))))
 118         return FALSE;
 119
 120     if (FAILED(spPersistFile->Load(pszLnk, STGM_READ)) || FAILED(spShellLink->Resolve(NULL, SLR_NO_UI | SLR_NOUPDATE | SLR_NOSEARCH)))
 121         return FALSE;
 122
 123     return SUCCEEDED(spShellLink->GetPath(pszExe, cchSize, NULL, SLGP_RAWPATH));
 124 }