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// DLLExports.cpp
//
// Notes:
// Win2000:
// If I register at HKCR\Folder\ShellEx then DLL is locked.
// otherwise it unloads after explorer closing.
// but if I call menu for desktop items it's locked all the time
#include "StdAfx.h"
#include "../../../Common/MyWindows.h"
#include <OleCtl.h>
#include "../../../Common/MyInitGuid.h"
#include "../../../Common/ComTry.h"
#include "../../../Windows/DLL.h"
#include "../../../Windows/ErrorMsg.h"
#include "../../../Windows/NtCheck.h"
#include "../../../Windows/Registry.h"
#include "../FileManager/IFolder.h"
#include "ContextMenu.h"
static LPCTSTR const k_ShellExtName = TEXT("7-Zip Shell Extension");
static LPCTSTR const k_Approved = TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Shell Extensions\\Approved");
// {23170F69-40C1-278A-1000-000100020000}
static LPCTSTR const k_Clsid = TEXT("{23170F69-40C1-278A-1000-000100020000}");
DEFINE_GUID(CLSID_CZipContextMenu,
k_7zip_GUID_Data1,
k_7zip_GUID_Data2,
k_7zip_GUID_Data3_Common,
0x10, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00);
using namespace NWindows;
extern
HINSTANCE g_hInstance;
HINSTANCE g_hInstance = 0;
extern
HWND g_HWND;
HWND g_HWND = 0;
extern
LONG g_DllRefCount;
LONG g_DllRefCount = 0; // Reference count of this DLL.
// #define ODS(sz) OutputDebugString(L#sz)
class CShellExtClassFactory:
public IClassFactory,
public CMyUnknownImp
{
public:
CShellExtClassFactory() { InterlockedIncrement(&g_DllRefCount); }
~CShellExtClassFactory() { InterlockedDecrement(&g_DllRefCount); }
MY_UNKNOWN_IMP1_MT(IClassFactory)
STDMETHODIMP CreateInstance(LPUNKNOWN, REFIID, void**);
STDMETHODIMP LockServer(BOOL);
};
STDMETHODIMP CShellExtClassFactory::CreateInstance(LPUNKNOWN pUnkOuter,
REFIID riid, void **ppvObj)
{
// ODS("CShellExtClassFactory::CreateInstance()\r\n");
*ppvObj = NULL;
if (pUnkOuter)
return CLASS_E_NOAGGREGATION;
CZipContextMenu *shellExt;
try
{
shellExt = new CZipContextMenu();
}
catch(...) { return E_OUTOFMEMORY; }
if (!shellExt)
return E_OUTOFMEMORY;
HRESULT res = shellExt->QueryInterface(riid, ppvObj);
if (res != S_OK)
delete shellExt;
return res;
}
STDMETHODIMP CShellExtClassFactory::LockServer(BOOL /* fLock */)
{
return S_OK; // Check it
}
#if defined(_UNICODE) && !defined(_WIN64) && !defined(UNDER_CE)
#define NT_CHECK_FAIL_ACTION return FALSE;
#endif
extern "C"
BOOL WINAPI DllMain(
#ifdef UNDER_CE
HANDLE hInstance
#else
HINSTANCE hInstance
#endif
, DWORD dwReason, LPVOID);
extern "C"
BOOL WINAPI DllMain(
#ifdef UNDER_CE
HANDLE hInstance
#else
HINSTANCE hInstance
#endif
, DWORD dwReason, LPVOID)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
g_hInstance = (HINSTANCE)hInstance;
// ODS("In DLLMain, DLL_PROCESS_ATTACH\r\n");
NT_CHECK
}
else if (dwReason == DLL_PROCESS_DETACH)
{
// ODS("In DLLMain, DLL_PROCESS_DETACH\r\n");
}
return TRUE;
}
// Used to determine whether the DLL can be unloaded by OLE
STDAPI DllCanUnloadNow(void)
{
// ODS("In DLLCanUnloadNow\r\n");
return (g_DllRefCount == 0 ? S_OK : S_FALSE);
}
STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
// ODS("In DllGetClassObject\r\n");
*ppv = NULL;
if (IsEqualIID(rclsid, CLSID_CZipContextMenu))
{
CShellExtClassFactory *cf;
try
{
cf = new CShellExtClassFactory;
}
catch(...) { return E_OUTOFMEMORY; }
if (!cf)
return E_OUTOFMEMORY;
HRESULT res = cf->QueryInterface(riid, ppv);
if (res != S_OK)
delete cf;
return res;
}
return CLASS_E_CLASSNOTAVAILABLE;
// return _Module.GetClassObject(rclsid, riid, ppv);
}
static BOOL RegisterServer()
{
FString modulePath;
if (!NDLL::MyGetModuleFileName(modulePath))
return FALSE;
const UString modulePathU = fs2us(modulePath);
CSysString s ("CLSID\\");
s += k_Clsid;
{
NRegistry::CKey key;
if (key.Create(HKEY_CLASSES_ROOT, s, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE) != NOERROR)
return FALSE;
key.SetValue(NULL, k_ShellExtName);
NRegistry::CKey keyInproc;
if (keyInproc.Create(key, TEXT("InprocServer32"), NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE) != NOERROR)
return FALSE;
keyInproc.SetValue(NULL, modulePathU);
keyInproc.SetValue(TEXT("ThreadingModel"), TEXT("Apartment"));
}
#if !defined(_WIN64) && !defined(UNDER_CE)
if (IsItWindowsNT())
#endif
{
NRegistry::CKey key;
if (key.Create(HKEY_LOCAL_MACHINE, k_Approved, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE) == NOERROR)
key.SetValue(k_Clsid, k_ShellExtName);
}
return TRUE;
}
STDAPI DllRegisterServer(void)
{
return RegisterServer() ? S_OK: SELFREG_E_CLASS;
}
static BOOL UnregisterServer()
{
CSysString s ("CLSID\\");
s += k_Clsid;
RegDeleteKey(HKEY_CLASSES_ROOT, s + TEXT("\\InprocServer32"));
RegDeleteKey(HKEY_CLASSES_ROOT, s);
#if !defined(_WIN64) && !defined(UNDER_CE)
if (IsItWindowsNT())
#endif
{
HKEY hKey;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, k_Approved, 0, KEY_SET_VALUE, &hKey) == NOERROR)
{
RegDeleteValue(hKey, k_Clsid);
RegCloseKey(hKey);
}
}
return TRUE;
}
STDAPI DllUnregisterServer(void)
{
return UnregisterServer() ? S_OK: SELFREG_E_CLASS;
}
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