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// mdexceptions.h
//
// WinDirStat - Directory Statistics
// Copyright (C) 2003-2005 Bernhard Seifert
// Copyright (C) 2004-2017 WinDirStat Team (windirstat.net)
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// This general purpose header is derived from a file
// created by www.daccord.net und published
// here under GPL with friendly permission of D'accord.
//
// Note: Md is just a prefix.
#ifndef __WDS_MDEXCEPTIONS_H__
#define __WDS_MDEXCEPTIONS_H__
#pragma once
#ifndef _INC_STDARG
#include <stdarg.h>
#endif
class CMdStringException: public CException
{
public:
CMdStringException(LPCTSTR pszText)
: m_sText(pszText) // pszText may be an ordinal resource (MAKEINTRESOURCE)
{
}
virtual BOOL GetErrorMessage(LPTSTR lpszError, UINT nMaxError, UINT *pnHelpContext = NULL)
{
if(pnHelpContext != NULL)
{
*pnHelpContext = 0;
}
if((nMaxError != 0) && (lpszError != NULL))
{// TODO, fix parameters
_tcscpy_s(lpszError, nMaxError, m_sText);
}
return true;
}
protected:
CString m_sText;
};
inline CString MdGetExceptionMessage(const CException *pe)
{
const INT ccBufferSize = 0x400;
CString s;
BOOL b = pe->GetErrorMessage(s.GetBuffer(ccBufferSize), ccBufferSize);
s.ReleaseBuffer();
if(!b)
{
s = _T("(no error message available)");
}
return s;
}
inline CString MdGetWinErrorText(HRESULT hr)
{
CString sRet;
LPVOID lpMsgBuf;
DWORD dw = FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
hr,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL
);
if(NULL == dw)
{
CString s(MAKEINTRESOURCE(AFX_IDP_NO_ERROR_AVAILABLE));
sRet.Format(_T("%s (0x%08lx)"), s.GetString(), hr);
}
else
{
sRet = CString(static_cast<LPCTSTR>(lpMsgBuf));
::LocalFree(lpMsgBuf);
}
return sRet;
}
inline void MdThrowStringException(UINT resId)
{
throw new CMdStringException(MAKEINTRESOURCE(resId));
}
inline void MdThrowStringException(LPCTSTR pszText)
{
throw new CMdStringException(pszText);
}
inline void __MdFormatStringExceptionV(CString& rsText, LPCTSTR pszFormat, va_list vlist)
{
// CString sFormat(); // may be a MAKEINTRESOURCE
rsText.FormatMessageV(CString(pszFormat), &vlist);
}
inline void AFX_CDECL MdThrowStringExceptionF(LPCTSTR pszFormat, ...)
{
CString sText;
va_list vlist;
va_start(vlist, pszFormat);
__MdFormatStringExceptionV(sText, pszFormat, vlist);
va_end(vlist);
MdThrowStringException(sText);
}
inline void MdThrowStringExceptionV(LPCTSTR pszFormat, va_list vlist)
{
CString sText;
__MdFormatStringExceptionV(sText, pszFormat, vlist);
MdThrowStringException(sText);
}
inline void AFX_CDECL MdThrowStringExceptionF(UINT nResIdFormat, ...)
{
CString sText;
va_list vlist;
va_start(vlist, nResIdFormat);
__MdFormatStringExceptionV(sText, MAKEINTRESOURCE(nResIdFormat), vlist);
va_end(vlist);
MdThrowStringException(sText);
}
inline void MdThrowStringExceptionF(UINT nResIdFormat, va_list vlist)
{
CString sText;
__MdFormatStringExceptionV(sText, MAKEINTRESOURCE(nResIdFormat), vlist);
MdThrowStringException(sText);
}
inline void MdThrowWinError(DWORD dw, LPCTSTR pszPrefix =NULL)
{
CString sMsg = pszPrefix;
sMsg += _T(": ") + MdGetWinErrorText(dw);
MdThrowStringException(sMsg);
}
inline void MdThrowHresult(HRESULT hr, LPCTSTR pszPrefix =NULL)
{
CString sMsg = pszPrefix;
sMsg += _T(": ") + MdGetWinErrorText(hr);
MdThrowStringException(sMsg);
}
inline void MdThrowLastWinerror(LPCTSTR pszPrefix = NULL)
{
MdThrowWinError(::GetLastError(), pszPrefix);
}
inline void MdThrowFailed(HRESULT hr, LPCTSTR pszPrefix = NULL)
{
if(FAILED(hr))
{
MdThrowHresult(hr, pszPrefix);
}
}
#endif // __WDS_MDEXCEPTIONS_H__
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