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// THIS CODE AND INFORMATION IS 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.
//
// Copyright (c) Microsoft Corporation. All rights reserved
//
// File Name:
//
// Exception.h
//
// Abstract:
//
// Exception macro and class declarations.
//
#pragma once
//
// Macro to convert HRESULT into an exception throw
//
#ifndef THROW_ON_FAILED_HRESULT
#define THROW_ON_FAILED_HRESULT(func_) \
{ \
HRESULT hr_ = func_; \
if (FAILED(hr_)) { xpsrasfilter::ThrowHRException(hr_, __FILE__, __LINE__); } \
}
#endif // THROW_ON_FAILED_HRESULT
#ifndef THROW_LAST_ERROR
#define THROW_LAST_ERROR() \
{ \
HRESULT errhr_ = HRESULT_FROM_WIN32(::GetLastError()); \
THROW_ON_FAILED_HRESULT(errhr_); \
}
#endif // THROW_LAST_ERROR
//
// Macro to catch various exceptions, including
// HRESULT-turned-exceptions.
//
// Because we have defined USE_NATIVE_EH=1, the
// catch(...) block will not catch structural
// exceptions.
//
#ifndef CATCH_VARIOUS
#define CATCH_VARIOUS(hr_) \
catch(std::bad_alloc const& ) \
{ \
hr_ = E_OUTOFMEMORY; \
} \
catch(xpsrasfilter::hr_error const& e) \
{ \
hr_ = e.hr; \
} \
catch(std::exception const& ) \
{ \
hr_ = E_FAIL; \
} \
catch(...) \
{ \
hr_ = E_UNEXPECTED; \
}
#endif // CATCH_VARIOUS
namespace xpsrasfilter
{
//
// HRESULT exception
//
struct hr_error
{
HRESULT hr;
hr_error(HRESULT hr_in) : hr(hr_in)
{ }
};
void ThrowHRException(
HRESULT hr,
char const *fileName,
int lineNum
);
} // namespace xpsrasfilter
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