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313 lines
7.8 KiB
313 lines
7.8 KiB
/***************************************************************************
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* dll.c
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*
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* Standard DLL entry-point functions
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*
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***************************************************************************/
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// Note: Proxy/Stub Information from ATL
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//
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// To merge the proxy/stub code into the object DLL, add the file
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// dlldatax.c to the project. Make sure precompiled headers
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// are turned off for this file, and add _MERGE_PROXYSTUB to the
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// defines for the project.
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//
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// If you are not running WinNT4.0 or Win95 with DCOM, then you
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// need to remove the following define from dlldatax.c
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// #define _WIN32_WINNT 0x0400
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//
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// Further, if you are running MIDL without /Oicf switch, you also
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// need to remove the following define from dlldatax.c.
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// #define USE_STUBLESS_PROXY
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//
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// Modify the custom build rule for shappmgr.idl by adding the following
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// files to the Outputs.
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// shappmgr_p.c
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// dlldata.c
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// To build a separate proxy/stub DLL,
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// run nmake -f shappmgrps.mk in the project directory.
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#include "priv.h"
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#include "sccls.h"
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#include <ntverp.h>
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#include <advpub.h> // For REGINSTALL
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// Define GUIDs
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extern "C"
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{
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HINSTANCE g_hinst = NULL;
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int g_cxIcon;
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int g_cyIcon;
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BOOL g_bMirroredOS;
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LONG g_cRefThisDll = 0; // per-instance
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#ifdef WX86
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//
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// from uninstal.c
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//
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extern BOOL bWx86Enabled;
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BOOL IsWx86Enabled(VOID);
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#endif
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};
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CComModule _Module; // ATL module object
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/*----------------------------------------------------------
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Purpose: DllEntryPoint
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*/
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BOOL
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APIENTRY
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DllMain(
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IN HINSTANCE hinst,
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IN DWORD dwReason,
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IN LPVOID lpReserved)
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{
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#ifdef _MERGE_PROXYSTUB
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if (!PrxDllMain(hInstance, dwReason, lpReserved))
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return FALSE;
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#endif
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switch(dwReason)
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{
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hinst);
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SHFusionInitializeFromModule(hinst);
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#ifdef DEBUG
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CcshellGetDebugFlags();
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if (g_dwBreakFlags & BF_ONDLLLOAD)
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DebugBreak();
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#endif
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g_hinst = hinst;
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g_cxIcon = GetSystemMetrics(SM_CXICON);
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g_cyIcon = GetSystemMetrics(SM_CYICON);
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g_bMirroredOS = IS_MIRRORING_ENABLED();
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#ifdef WX86
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bWx86Enabled = IsWx86Enabled();
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#endif
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break;
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case DLL_PROCESS_DETACH:
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SHFusionUninitialize();
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break;
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case DLL_THREAD_ATTACH:
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case DLL_THREAD_DETACH:
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// We shouldn't get these because we called
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// DisableThreadLibraryCalls().
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ASSERT_MSG(0, "DllMain received DLL_THREAD_ATTACH/DETACH! We're not expecting this.");
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break;
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default:
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break;
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}
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return TRUE;
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}
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/*----------------------------------------------------------
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Purpose: This function provides the DLL version info. This
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allows the caller to distinguish running NT SUR vs.
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Win95 shell vs. Nashville, etc.
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The caller must GetProcAddress this function.
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Returns: NO_ERROR
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ERROR_INVALID_PARAMETER if pinfo is invalid
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*/
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// All we have to do is declare this puppy and CCDllGetVersion does the rest
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DLLVER_DUALBINARY(VER_PRODUCTVERSION_DW, VER_PRODUCTBUILD_QFE);
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/*----------------------------------------------------------
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Purpose: Calls the ADVPACK entry-point which executes an inf
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file section.
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*/
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HRESULT _CallRegInstall(LPCSTR szSection, BOOL bUninstall)
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{
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HRESULT hr = E_FAIL;
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HINSTANCE hinstAdvPack = LoadLibrary(TEXT("ADVPACK.DLL"));
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if (hinstAdvPack)
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{
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REGINSTALL pfnri = (REGINSTALL)GetProcAddress(hinstAdvPack, "RegInstall");
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if (pfnri)
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{
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STRENTRY seReg[] = {
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{ "25", "%SystemRoot%" },
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{ "11", "%SystemRoot%\\system32" },
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};
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STRTABLE stReg = { ARRAYSIZE(seReg), seReg };
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hr = pfnri(g_hinst, szSection, &stReg);
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if (bUninstall)
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{
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// ADVPACK will return E_UNEXPECTED if you try to uninstall
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// (which does a registry restore) on an INF section that was
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// never installed. We uninstall sections that may never have
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// been installed, so ignore this error
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hr = ((E_UNEXPECTED == hr) ? S_OK : hr);
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}
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}
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FreeLibrary(hinstAdvPack);
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}
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return hr;
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}
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//
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// Remove any legacy registry information.
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//
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void _RemoveLegacyRegistryEntries(void)
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{
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//
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// Windows XP made the ADCCtl ActiveX control obsolete.
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// Remove the registration of this control.
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//
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SHDeleteKey(HKEY_CLASSES_ROOT, TEXT("ADCCtl.ADCCtl.1"));
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SHDeleteKey(HKEY_CLASSES_ROOT, TEXT("ADCCtl.ADCCtl"));
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SHDeleteKey(HKEY_CLASSES_ROOT, TEXT("CLSID\\{3964D9A0-AC96-11D1-9851-00C04FD91972}"));
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}
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/*----------------------------------------------------------
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Purpose: Install/uninstall user settings
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*/
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STDAPI DllInstall(BOOL bInstall, LPCWSTR pszCmdLine)
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{
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HRESULT hr = S_OK;
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HRESULT hrExternal = S_OK;
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#ifdef DEBUG
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if (IsFlagSet(g_dwBreakFlags, BF_ONAPIENTER))
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{
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TraceMsg(TF_ALWAYS, "Stopping in DllInstall");
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DEBUG_BREAK;
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}
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#endif
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if (bInstall)
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{
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// Delete any old registration entries, then add the new ones.
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// Keep ADVPACK.DLL loaded across multiple calls to RegInstall.
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// (The inf engine doesn't guarantee DelReg/AddReg order, that's
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// why we explicitly unreg and reg here.)
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//
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hr = THR(_CallRegInstall("RegDll", FALSE));
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if (SUCCEEDED(hrExternal))
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hrExternal = hr;
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}
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else
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{
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hr = THR(_CallRegInstall("UnregDll", TRUE));
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if (SUCCEEDED(hrExternal))
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hrExternal = hr;
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}
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return hrExternal;
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}
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/*----------------------------------------------------------
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Purpose: Returns a class factory to create an object of
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the requested type.
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*/
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STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **ppv)
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{
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TraceMsg(TF_OBJLIFE, "DllGetClassObject called with riid=%x (%x)", riid, &riid);
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#ifdef _MERGE_PROXYSTUB
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if (PrxDllGetClassObject(rclsid, riid, ppv) == S_OK)
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return S_OK;
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#endif
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if (riid == IID_IClassFactory || riid == IID_IUnknown)
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{
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// Try our native class factory
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HRESULT hres = GetClassObject(rclsid, riid, ppv);
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if (FAILED(hres))
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{
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// Try the ATL class factory
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hres = _Module.GetClassObject(rclsid, riid, ppv);
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}
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return hres;
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}
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*ppv = NULL;
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return CLASS_E_CLASSNOTAVAILABLE;
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}
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STDAPI DllCanUnloadNow(void)
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{
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#ifdef _MERGE_PROXYSTUB
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if (PrxDllCanUnloadNow() != S_OK)
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return S_FALSE;
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#endif
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// This component uses ATL and natively-implemented COM objects
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if (0 != g_cRefThisDll || 0 != _Module.GetLockCount())
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return S_FALSE;
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TraceMsg(DM_TRACE, "DllCanUnloadNow returning S_OK (bye, bye...)");
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return S_OK;
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}
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STDAPI_(void) DllAddRef(void)
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{
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InterlockedIncrement(&g_cRefThisDll);
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ASSERT(g_cRefThisDll < 1000); // reasonable upper limit
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}
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STDAPI_(void) DllRelease(void)
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{
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ASSERT( 0 != g_cRefThisDll );
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InterlockedDecrement(&g_cRefThisDll);
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}
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STDAPI DllRegisterServer(void)
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{
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HRESULT hres = S_OK;
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//
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// We have some old registry entries that must be removed on upgrade.
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//
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_RemoveLegacyRegistryEntries();
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#ifdef _MERGE_PROXYSTUB
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hres = THR(PrxDllRegisterServer());
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if (FAILED(hres))
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return hres;
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#endif
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return hres;
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}
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STDAPI DllUnregisterServer(void)
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{
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#ifdef _MERGE_PROXYSTUB
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PrxDllUnregisterServer();
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#endif
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return S_OK;
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}
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