// dllmain.cpp : Implementation of DLL Exports.

#include "stdafx.h"
#include "resource.h"
#include "LegacyUpdate_i.h"
#include "dllmain.h"
#include "dlldatax.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();
#ifdef _MERGE_PROXYSTUB
	if (FAILED(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;
}