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//+--------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// This source code is intended only as a supplement to Microsoft
// Development Tools and/or on-line documentation. See these other
// materials for detailed information regarding Microsoft code samples.
//
// THIS CODE AND INFORMATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
//
// Abstract:
// WDK print filter sample. This file contains the implementation for
// DllGetClassObject and DllMain
//
//----------------------------------------------------------------------------
#include "precomp.hxx"
#include "main.hxx"
#include "XpsFilter.hxx"
#include "StreamFilter.hxx"
#include "main.tmh"
_Analysis_mode_(_Analysis_code_type_user_driver_)
LONG DllLockManager::m_cGlobalRef = 0;
HRESULT
WINAPI
DllCanUnloadNow(void) throw()
{
return 0 == DllLockManager::GetGlobalRef() ? S_OK : S_FALSE;
}
HRESULT
WINAPI
DllGetClassObject(
_In_ REFCLSID rclsid,
_In_ REFIID riid,
_Outptr_ PVOID *ppv
) throw()
{
HRESULT hRetval = E_POINTER;
if (ppv)
{
*ppv = NULL;
if (rclsid == XpsFilter::FilterClsid())
{
Tools::SmartPtr<XpsFilter> pFilter;
pFilter.Attach(new XpsFilter());
if (pFilter)
{
hRetval = pFilter->QueryInterface(riid, ppv);
}
else
{
hRetval = E_OUTOFMEMORY;
}
}
else if (rclsid == StreamFilter::FilterClsid())
{
Tools::SmartPtr<StreamFilter> pFilter;
pFilter.Attach(new StreamFilter());
if (pFilter)
{
hRetval = pFilter->QueryInterface(riid, ppv);
}
else
{
hRetval = E_OUTOFMEMORY;
}
}
else
{
hRetval = CLASS_E_CLASSNOTAVAILABLE;
}
}
return hRetval;
}
BOOL WINAPI
DllMain(
_In_ HINSTANCE hInst,
_In_ DWORD dwReason,
_In_opt_ PVOID pReserved
)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
DisableThreadLibraryCalls(hInst);
WPP_INIT_TRACING(L"WdkPipelineFilter");
}
else if (dwReason == DLL_PROCESS_DETACH)
{
WPP_CLEANUP();
}
UNREFERENCED_PARAMETER(dwReason);
UNREFERENCED_PARAMETER(pReserved);
return TRUE;
}
void
WppTraceDebugOut(
_In_z_ const WCHAR *pszFmt,
...
)
{
va_list pArgs;
va_start(pArgs, pszFmt);
WCHAR buf[MAX_PATH];
if (SUCCEEDED(StringCchVPrintf(buf,
MAX_PATH,
pszFmt,
pArgs)) &&
SUCCEEDED(StringCchCat(buf,
MAX_PATH,
L"\n")))
{
OutputDebugString(buf);
}
va_end(pArgs);
}
void
WppTraceDebugOut(
_In_z_ const CHAR *pszFmt,
...
)
{
va_list pArgs;
va_start(pArgs, pszFmt);
CHAR buf[MAX_PATH];
if (SUCCEEDED(StringCchVPrintfA(buf,
MAX_PATH,
pszFmt,
pArgs)) &&
SUCCEEDED(StringCchCatA(buf,
MAX_PATH,
"\n")))
{
OutputDebugStringA(buf);
}
va_end(pArgs);
}
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