WUIsBack/LegacyUpdate/dllmain.cpp

145 lines
3.0 KiB
C++

// dllmain.cpp : Implementation of DLL Exports.
#include "stdafx.h"
#include "LegacyUpdate_i.h"
#include "dllmain.h"
#include <strsafe.h>
#include "dlldatax.h"
#include "Registry.h"
#include "LegacyUpdate.h"
CLegacyUpdateModule _AtlModule;
HINSTANCE g_hInstance;
// DLL Entry Point
extern "C" BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved) {
#ifdef _MERGE_PROXYSTUB
if (!PrxDllMain(hInstance, dwReason, lpReserved))
return FALSE;
#endif
switch (dwReason) {
case DLL_PROCESS_ATTACH:
g_hInstance = hInstance;
break;
case DLL_PROCESS_DETACH:
g_hInstance = NULL;
break;
}
return _AtlModule.DllMain(dwReason, lpReserved);
}
// Used to determine whether the DLL can be unloaded by OLE
STDAPI DllCanUnloadNow(void) {
#ifdef _MERGE_PROXYSTUB
HRESULT hr = PrxDllCanUnloadNow();
if (hr != S_OK) {
return hr;
}
#endif
return _AtlModule.DllCanUnloadNow();
}
// Returns a class factory to create an object of the requested type
STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv) {
#ifdef _MERGE_PROXYSTUB
if (PrxDllGetClassObject(rclsid, riid, ppv) == S_OK) {
return S_OK;
}
#endif
return _AtlModule.DllGetClassObject(rclsid, riid, ppv);
}
// DllRegisterServer - Adds entries to the system registry
STDAPI DllRegisterServer(void) {
// registers object, typelib and all interfaces in typelib
HRESULT hr = _AtlModule.DllRegisterServer();
if (!SUCCEEDED(hr)) {
return hr;
}
// Fix the icon path
HKEY subkey;
hr = HRESULT_FROM_WIN32(RegOpenKeyEx(HKEY_CLASSES_ROOT, L"CLSID\\{84F517AD-6438-478F-BEA8-F0B808DC257F}\\Elevation", 0, KEY_WRITE, &subkey));
if (!SUCCEEDED(hr)) {
return hr;
}
LPWSTR installPath;
hr = GetInstallPath(&installPath);
if (!SUCCEEDED(hr)) {
return hr;
}
WCHAR iconRef[512];
hr = StringCchPrintf((LPWSTR)&iconRef, ARRAYSIZE(iconRef), L"@%ls\\LegacyUpdate.exe,-100", installPath);
LocalFree(installPath);
if (!SUCCEEDED(hr)) {
return hr;
}
hr = HRESULT_FROM_WIN32(RegSetValueEx(subkey, L"IconReference", 0, REG_SZ, (LPBYTE)iconRef, (DWORD)(lstrlen(iconRef) + 1) * sizeof(TCHAR)));
if (!SUCCEEDED(hr)) {
return hr;
}
hr = RegCloseKey(subkey);
#ifdef _MERGE_PROXYSTUB
if (!SUCCEEDED(hr)) {
return hr;
}
hr = PrxDllRegisterServer();
#endif
return hr;
}
// DllUnregisterServer - Removes entries from the system registry
STDAPI DllUnregisterServer(void) {
HRESULT hr = _AtlModule.DllUnregisterServer();
#ifdef _MERGE_PROXYSTUB
if (FAILED(hr)) {
return hr;
}
hr = PrxDllRegisterServer();
if (FAILED(hr)) {
return hr;
}
hr = PrxDllUnregisterServer();
#endif
return hr;
}
// DllInstall - Adds/Removes entries to the system registry per user per machine.
STDAPI DllInstall(BOOL bInstall, LPCWSTR pszCmdLine) {
HRESULT hr = E_FAIL;
static const wchar_t szUserSwitch[] = L"user";
if (pszCmdLine != NULL) {
if (_wcsnicmp(pszCmdLine, szUserSwitch, _countof(szUserSwitch)) == 0) {
AtlSetPerUserRegistration(true);
}
}
if (bInstall) {
hr = DllRegisterServer();
if (FAILED(hr)) {
DllUnregisterServer();
}
} else {
hr = DllUnregisterServer();
}
return hr;
}