instapi.cpp

Go to the documentation of this file.

// instapi.cpp : Implementation of DLL Exports.


#include "stdafx.h"
#include "resource.h"
#include "instapi_i.h"
#include "dllmain.h"


// Used to determine whether the DLL can be unloaded by OLE.
STDAPI DllCanUnloadNow(void)
{
                        return _AtlModule.DllCanUnloadNow();
        }

// Returns a class factory to create an object of the requested type.
STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
                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();
                return hr;
}

// DllUnregisterServer - Removes entries from the system registry.
STDAPI DllUnregisterServer(void)
{
        HRESULT hr = _AtlModule.DllUnregisterServer();
                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)
                {
                        ATL::AtlSetPerUserRegistration(true);
                }
        }

        if (bInstall)
        {       
                hr = DllRegisterServer();
                if (FAILED(hr))
                {
                        DllUnregisterServer();
                }
        }
        else
        {
                hr = DllUnregisterServer();
        }

        return hr;
}