848 lines
23 KiB
C++
848 lines
23 KiB
C++
/*++
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Microsoft Windows
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Copyright (C) Microsoft Corporation, 1981 - 1999
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Module Name:
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utils.cpp
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Abstract:
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Author:
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Rahul Thombre (RahulTh) 4/30/1998
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Revision History:
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4/30/1998 RahulTh
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Created this module.
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10/12/98 RahulTh
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Better error handling capabilities added : CError etc.
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--*/
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#include "precomp.hxx"
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#define VALIDATE_SEND_COOKIE(cookie) \
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{ \
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__try \
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{ \
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*pStatus = ERROR_INVALID_DATA; \
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if (MAGIC_ID != ((CSendProgress *)cookie)->m_dwMagicID) \
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return; \
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*pStatus = ERROR_SUCCESS; \
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} \
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__except (EXCEPTION_EXECUTE_HANDLER) \
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{ \
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return; \
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} \
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}
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////////////////////////////////////////////////////////////////////////
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//
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//RPC Functions
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//
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///////////////////////////////////////////////////////////////////////
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void __RPC_FAR * __RPC_USER MIDL_user_allocate(size_t Size)
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{
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return new char[Size];
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}
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void __RPC_USER MIDL_user_free( void __RPC_FAR * buf)
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{
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delete [] buf;
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}
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//
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// wireless link specific errors
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//
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ERROR_TO_STRING_ID g_ErrorToStringId[] =
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{
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{ERROR_IRTRANP_OUT_OF_MEMORY, IDS_ERROR_NO_MEMORY},
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{ERROR_IRTRANP_DISK_FULL, IDS_ERROR_DISK_FULL},
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{ERROR_SCEP_CANT_CREATE_FILE, IDS_ERROR_DISK_FULL},
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{ERROR_SCEP_ABORT, IDS_ERROR_ABORTED},
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{ERROR_SCEP_INVALID_PROTOCOL, IDS_ERROR_PROTOCOL},
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{ERROR_SCEP_PDU_TOO_LARGE, IDS_ERROR_PROTOCOL},
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{ERROR_BFTP_INVALID_PROTOCOL, IDS_ERROR_PROTOCOL},
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{ERROR_BFTP_NO_MORE_FRAGMENTS, IDS_ERROR_PROTOCOL},
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{ERROR_SUCCESS, -1}
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};
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////////////////////////////////////////////////////////////////////
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//
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//Miscellaneous useful functions
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//
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///////////////////////////////////////////////////////////////////
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int ParseFileNames (TCHAR* pszInString, TCHAR* pszFilesList, int& iCharCount)
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{
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ASSERT(pszFilesList != NULL);
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ASSERT(pszInString != NULL);
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BOOL fInQuotes = FALSE;
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BOOL fIgnoreSpaces = FALSE;
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TCHAR* pszSource = pszInString;
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TCHAR* pszTarget = pszFilesList;
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int iFileCount = 0;
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TCHAR curr;
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//ignore leading whitespaces
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while(' ' == *pszSource || '\t' == *pszSource)
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pszSource++;
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iCharCount = 0;
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*pszTarget = '\0'; //precautionary measures
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if ('\0' == *pszSource) //special case : if this was an empty string, return 0
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return iFileCount;
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//parse the string to get filenames
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while(curr = *pszSource)
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{
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if('\"' == curr)
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{
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fInQuotes = fInQuotes?FALSE:TRUE;
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}
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else if(' ' == curr && !fInQuotes)
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{
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if(!fIgnoreSpaces)
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{
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*pszTarget++ = 0;
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iFileCount++;
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iCharCount++;
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fIgnoreSpaces = TRUE;
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}
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}
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else
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{
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*pszTarget++ = curr;
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iCharCount++;
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fIgnoreSpaces = FALSE;
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}
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pszSource++;
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}
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if(' ' != *(pszSource-1)) //if there was no trailing space
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{
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*pszTarget++ = '\0'; //then the last file was not accounted for.
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iCharCount++; //so we do it here
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iFileCount++;
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}
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*pszTarget++ = '\0'; //should have 2 terminating nulls
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iCharCount++;
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return iFileCount;
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}
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//+--------------------------------------------------------------------------
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//
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// Function: GetIRRegVal
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//
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// Synopsis: gets the specified registry value from the IR subtree in HKCU
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//
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// Arguments: [in] szValName : the name of the value.
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// [in] dwDefVal : the default value to be returned if the read
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// from the registry fails or if the value is
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// missing.
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//
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// Returns: the actual value stored in the registry or the default value
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// if the read fails.
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//
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// History: 10/27/1999 RahulTh created
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//
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// Notes:
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//
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//---------------------------------------------------------------------------
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DWORD GetIRRegVal (LPCTSTR szValName, DWORD dwDefVal)
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{
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HKEY hftKey = NULL;
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DWORD iSize = sizeof(DWORD);
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DWORD data = 0;
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DWORD Status;
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RegOpenKeyEx (HKEY_CURRENT_USER, TEXT("Control Panel\\Infrared\\File Transfer"),
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0, KEY_READ, &hftKey);
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if (!hftKey)
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return dwDefVal;
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Status = RegQueryValueEx (hftKey, szValName, NULL, NULL,
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(LPBYTE)&data, &iSize);
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if (ERROR_SUCCESS != Status)
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data = dwDefVal;
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RegCloseKey (hftKey);
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return data;
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}
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TCHAR* GetFullPathnames (TCHAR* pszPath, //directory in which the files are located
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const TCHAR* pszFilesList, //NULL separated list of filenames
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int iFileCount, //number of files in pszFilesList
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int& iCharCount //number of characters in pszFilesList. also returns the number of chars in the return string
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)
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{
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int iChars;
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int iPathLen = lstrlen(pszPath);
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if (pszPath[iPathLen - 1] != '\\') //append a '\' character to the path if not already present
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{
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pszPath[iPathLen++] = '\\';
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pszPath[iPathLen] = '\0';
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}
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int iSize = (iChars = iFileCount*iPathLen + iCharCount);
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TCHAR* pszFilePathList = new TCHAR[iSize];
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TCHAR* pszTemp = pszFilePathList;
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int iLen;
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while(*pszFilesList)
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{
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lstrcpy(pszTemp, pszPath);
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pszTemp += iPathLen;
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lstrcpy(pszTemp, pszFilesList);
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iLen = lstrlen(pszFilesList);
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pszFilesList += iLen + 1;
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pszTemp += iLen + 1;
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}
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*pszTemp = '\0'; //should be terminated by 2 null characters
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iCharCount = (int)(pszTemp - pszFilePathList) + 1; //return the actual char count of this string
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return pszFilePathList;
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}
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TCHAR* ProcessOneFile (TCHAR* pszPath, //directory in which the files are located
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const TCHAR* pszFilesList, //NULL separated list of filenames
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int iFileCount, //number of files in pszFilesList
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int& iCharCount //number of characters in pszFilesList. also returns the number of characters in the return string
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)
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{
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int iFileLen, iPathLen;
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TCHAR* pszFullFileName;
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iFileLen = lstrlen (pszFilesList);
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iPathLen = lstrlen (pszPath);
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ASSERT (iFileLen);
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ASSERT (iPathLen);
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if(':' == pszFilesList[1] //this is an absolute path starting with the drive letter;
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|| ('\\' == pszFilesList[0] && '\\' == pszFilesList[1]) //UNC path
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)
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{
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pszFullFileName = new TCHAR [iFileLen + 2];
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lstrcpy (pszFullFileName, pszFilesList);
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pszFullFileName[iFileLen + 1] = '\0'; //we need to have 2 terminating nulls
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iCharCount = iFileLen + 2;
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}
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else if('\\' == pszFilesList[0]) //path relative to the root
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{
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iCharCount = iFileLen + 2 /*drive letter and colon*/ + 2 /*terminating nulls*/;
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pszFullFileName = new TCHAR [iCharCount];
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pszFullFileName[0] = pszPath[0];
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pszFullFileName[1] = pszPath[1];
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lstrcpy (pszFullFileName + 2, pszFilesList);
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pszFullFileName[iCharCount - 1] = '\0'; //we need to have 2 terminating nulls
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}
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else //ordinary file name
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{
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iCharCount = iPathLen + iFileLen + 2; //2 terminating nulls
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iCharCount += ('\\' == pszPath[iPathLen - 1])?0:1; //sometimes the path does not have a \ at the end, so we need to add these ourselves
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pszFullFileName = new TCHAR [iCharCount];
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lstrcpy (pszFullFileName, pszPath);
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if('\\' != pszPath[iPathLen - 1]) //we need to add the \ ourselves
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{
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pszFullFileName[iPathLen] = '\\';
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lstrcpy(pszFullFileName + iPathLen + 1, pszFilesList);
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}
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else
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lstrcpy (pszFullFileName + iPathLen, pszFilesList);
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pszFullFileName[iCharCount - 1] = '\0'; //2 terminating nulls
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}
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return pszFullFileName;
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}
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//+--------------------------------------------------------------------------
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//
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// Function: GetPrimaryAppWindow
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//
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// Synopsis: gets the handle to the main window of an existing instance of
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// irftp
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//
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// Arguments: none.
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//
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// Returns: handle to the window if it finds one. otherwise NULL.
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//
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// History: 6/30/1999 RahulTh created
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//
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// Notes:
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//
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//---------------------------------------------------------------------------
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HWND GetPrimaryAppWindow (void)
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{
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HWND hwnd = NULL;
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int i = 1;
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//try to find the window for 5 seconds.
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do
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{
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hwnd = FindWindow (L"#32770", //the dialog class
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MAIN_WINDOW_TITLE);
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if (hwnd)
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break;
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Sleep (500);
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} while ( i++ <= 10 );
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return hwnd;
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}
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/////////////////////////////////////////////////////////////////////////
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// Initialize the RPC server
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////////////////////////////////////////////////////////////////////////
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BOOL InitRPCServer (void)
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{
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DWORD Status;
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Status = RpcServerRegisterIf( _IrNotifications_v1_0_s_ifspec, 0, 0);
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if (Status)
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{
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return FALSE;
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}
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Status = RpcServerUseAllProtseqsIf( RPC_C_PROTSEQ_MAX_REQS_DEFAULT, _IrNotifications_v1_0_s_ifspec, 0);
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if (Status)
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{
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return FALSE;
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}
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Status = RpcServerListen( 1, RPC_C_LISTEN_MAX_CALLS_DEFAULT, TRUE);
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if (Status)
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{
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return FALSE;
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}
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return TRUE;
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}
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//////////////////////////////////////////////////////////////////////////////////
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//Connect to the RPC server running on the first instance of the app
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//this function is called only if this is not the first instance of the app
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//////////////////////////////////////////////////////////////////////////////////
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RPC_BINDING_HANDLE GetRpcHandle (void)
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{
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DWORD Status;
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RPC_BINDING_HANDLE Binding;
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Status = RpcBindingFromStringBinding(L"ncalrpc:", &Binding);
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if (Status)
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return NULL;
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else
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return Binding;
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}
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///////////////////////////////////////////////////////////////////////////////////////
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// RPC Server functions
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//////////////////////////////////////////////////////////////////////////////////////
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void _PopupUI (handle_t Binding)
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{
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int nResponse;
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appController->PostMessage(WM_APP_TRIGGER_UI);
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return;
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}
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void _InitiateFileTransfer (handle_t Binding, ULONG lSize, wchar_t __RPC_FAR lpszFilesList[])
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{
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COPYDATASTRUCT cStruct;
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cStruct.dwData = lSize;
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cStruct.cbData = lSize * sizeof(wchar_t);
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cStruct.lpData = (LPVOID)(lpszFilesList);
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appController->SendMessage(WM_COPYDATA, (WPARAM)NULL, (LPARAM)(&cStruct));
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}
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void _DisplaySettings (handle_t Binding)
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{
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appController->PostMessage(WM_APP_TRIGGER_SETTINGS);
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}
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void _UpdateSendProgress (
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handle_t RpcBinding,
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COOKIE Cookie,
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wchar_t CurrentFile[],
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__int64 BytesInTransfer,
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__int64 BytesTransferred,
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error_status_t* pStatus
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)
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{
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VALIDATE_SEND_COOKIE (Cookie)
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CSendProgress* progressDlg = (CSendProgress*)Cookie;
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int percentComplete;
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if (BytesInTransfer)
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{
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percentComplete = (int)((BytesTransferred*100.0)/BytesInTransfer);
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}
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else
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{
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percentComplete = 100;
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}
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progressDlg->PostMessage(WM_APP_UPDATE_PROGRESS, (WPARAM) 0, (LPARAM) percentComplete);
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if (100 > percentComplete)
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{
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progressDlg->SetCurrentFileName (CurrentFile);
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}
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*pStatus = 0;
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}
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void _OneSendFileFailed(
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handle_t RpcBinding,
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COOKIE Cookie,
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wchar_t FileName[],
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error_status_t ErrorCode,
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FAILURE_LOCATION Location,
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error_status_t * pStatus
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)
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{
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VALIDATE_SEND_COOKIE (Cookie)
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struct SEND_FAILURE_DATA Data;
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COPYDATASTRUCT cStruct;
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CWnd* progressDlg = (CWnd*)Cookie;
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lstrcpy(Data.FileName, FileName);
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Data.Location = Location;
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Data.Error = ErrorCode;
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cStruct.cbData = sizeof(SEND_FAILURE_DATA);
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cStruct.lpData = &Data;
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progressDlg->SendMessage(WM_COPYDATA, (WPARAM) 0, (LPARAM)(&cStruct));
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*pStatus = 0;
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}
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void _SendComplete(
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handle_t RpcBinding,
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COOKIE Cookie,
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__int64 BytesTransferred,
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error_status_t* pStatus
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)
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{
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VALIDATE_SEND_COOKIE (Cookie)
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CWnd* progressDlg = (CWnd*)Cookie;
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progressDlg->PostMessage(WM_APP_SEND_COMPLETE);
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*pStatus = 0;
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}
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error_status_t
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_ReceiveInProgress(
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handle_t RpcBinding,
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wchar_t MachineName[],
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COOKIE * pCookie,
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boolean bSuppressRecvConf
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)
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{
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struct MSG_RECEIVE_IN_PROGRESS msg;
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msg.MachineName = MachineName;
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msg.pCookie = pCookie;
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msg.bSuppressRecvConf = bSuppressRecvConf;
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msg.status = ~0UL;
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appController->SendMessage( WM_APP_RECV_IN_PROGRESS, (WPARAM) &msg );
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return msg.status;
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}
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error_status_t
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_GetPermission(
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handle_t RpcBinding,
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COOKIE Cookie,
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wchar_t Name[],
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boolean fDirectory
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)
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{
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struct MSG_GET_PERMISSION msg;
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msg.Cookie = Cookie;
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msg.Name = Name;
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msg.fDirectory = fDirectory;
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msg.status = ~0UL;
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appController->SendMessage( WM_APP_GET_PERMISSION, (WPARAM) &msg );
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return msg.status;
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}
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error_status_t
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_ReceiveFinished(
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handle_t RpcBinding,
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COOKIE Cookie,
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error_status_t Status
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)
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{
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struct MSG_RECEIVE_FINISHED msg;
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msg.Cookie = Cookie;
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msg.ReceiveStatus = Status;
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msg.status = ~0UL;
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appController->SendMessage( WM_APP_RECV_FINISHED, (WPARAM) &msg );
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return msg.status;
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}
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void _DeviceInRange(
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handle_t RpcBinding,
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POBEX_DEVICE_LIST device,
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error_status_t* pStatus
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)
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{
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appController->PostMessage (WM_APP_KILL_TIMER);
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BOOL fLinkOnDesktop = (0 != InterlockedIncrement(&g_lLinkOnDesktop));
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if(!fLinkOnDesktop)
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CreateLinks();
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else
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InterlockedDecrement(&g_lLinkOnDesktop); //don't allow the value to exceed 0
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g_deviceList = device;
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*pStatus = 0;
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}
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|
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void _NoDeviceInRange(
|
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handle_t RpcBinding,
|
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error_status_t* pStatus
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)
|
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{
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RemoveLinks();
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InterlockedDecrement(&g_lLinkOnDesktop);
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g_deviceList = NULL;
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if (0 == g_lUIComponentCount)
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appController->PostMessage (WM_APP_START_TIMER);
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*pStatus = 0;
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}
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|
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void _Message(
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handle_t RpcBinding,
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wchar_t String[]
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)
|
|
{
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|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
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|
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CString szTitle;
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|
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szTitle.LoadString (IDS_CAPTION);
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|
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InterlockedIncrement (&g_lUIComponentCount);
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::MessageBox (NULL, String, (LPCTSTR) szTitle, MB_OK);
|
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BOOL fNoUIComponents = (0 == InterlockedDecrement (&g_lUIComponentCount));
|
|
if (appController && fNoUIComponents && ! g_deviceList.GetDeviceCount())
|
|
{
|
|
//there are no UI components displayed and there are no devices in
|
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//range. Start the timer. If the timer expires, the app. will quit.
|
|
appController->PostMessage (WM_APP_START_TIMER);
|
|
}
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|
|
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}
|
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|
|
error_status_t
|
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_ShutdownUi(handle_t RpcBinding)
|
|
{
|
|
appController->PostMessage( WM_CLOSE );
|
|
return 0;
|
|
}
|
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|
|
error_status_t
|
|
_ShutdownRequested(
|
|
handle_t RpcBinding,
|
|
boolean * pAnswer
|
|
)
|
|
{
|
|
WCHAR pwszCaption [50];
|
|
WCHAR pwszMessage [MAX_PATH];
|
|
|
|
*pAnswer = TRUE;
|
|
|
|
if (appController)
|
|
{
|
|
appController->PostMessage (WM_APP_KILL_TIMER);
|
|
}
|
|
|
|
if (! ::LoadString ( g_hInstance, IDS_CAPTION, pwszCaption, 50))
|
|
{
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
|
|
if (! ::LoadString ( g_hInstance, IDS_SHUTDOWN_MESSAGE, pwszMessage, MAX_PATH))
|
|
{
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
|
|
//display a message box with YES / NO buttons
|
|
if (IDYES == ::MessageBox (appController->m_hWnd, pwszMessage, pwszCaption,
|
|
MB_ICONEXCLAMATION | MB_YESNO | MB_SYSTEMMODAL | MB_SETFOREGROUND))
|
|
{
|
|
*pAnswer = TRUE;
|
|
}
|
|
else
|
|
{
|
|
*pAnswer = FALSE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//Create links on the desktop and in the Send To menu to this executable file
|
|
|
|
void CreateLinks(void)
|
|
{
|
|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
|
|
|
|
TCHAR lpszFullExeName [MAX_PATH];
|
|
TCHAR lpszShortcutName[MAX_PATH];
|
|
CString szDesc;
|
|
|
|
szDesc.LoadString (IDS_SHTCUT_DESC);
|
|
|
|
//create the desktop link
|
|
if (GetShortcutInfo(lpszShortcutName, lpszFullExeName))
|
|
CreateShortcut (lpszFullExeName, lpszShortcutName, (LPCTSTR) szDesc);
|
|
|
|
//create the send to link
|
|
if (GetSendToInfo(lpszShortcutName, lpszFullExeName))
|
|
CreateShortcut (lpszFullExeName, lpszShortcutName, (LPCTSTR) szDesc);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
// CreateShortcut - uses the shell's IShellLink and IPersistFile interfaces
|
|
// to create and store a shortcut to the specified object.
|
|
HRESULT CreateShortcut (LPCTSTR lpszExe, LPCTSTR lpszLink, LPCTSTR lpszDesc)
|
|
{
|
|
HRESULT hres;
|
|
IShellLink* psl;
|
|
|
|
hres = CoInitialize(NULL);
|
|
|
|
if (FAILED(hres))
|
|
return hres;
|
|
|
|
// Get a pointer to the IShellLink interface.
|
|
hres = CoCreateInstance(CLSID_ShellLink, NULL,
|
|
CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID*)&psl);
|
|
if (SUCCEEDED(hres)) {
|
|
IPersistFile* ppf;
|
|
|
|
// Set the path to the shortcut target and add the
|
|
// description.
|
|
psl->SetPath(lpszExe);
|
|
psl->SetDescription(lpszDesc);
|
|
|
|
// Query IShellLink for the IPersistFile interface for saving the
|
|
// shortcut in persistent storage.
|
|
hres = psl->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf);
|
|
|
|
if (SUCCEEDED(hres)) {
|
|
// Save the link by calling IPersistFile::Save.
|
|
hres = ppf->Save(lpszLink, TRUE);
|
|
ppf->Release();
|
|
}
|
|
psl->Release();
|
|
}
|
|
return SUCCEEDED(hres)?S_OK:E_FAIL;
|
|
}
|
|
|
|
void RemoveLinks (void)
|
|
{
|
|
TCHAR lpszShortcutName[2 * MAX_PATH];
|
|
TCHAR lpszFullExeName[2 * MAX_PATH];
|
|
|
|
//delete the desktop shortcut
|
|
if(GetShortcutInfo (lpszShortcutName, lpszFullExeName))
|
|
DeleteFile (lpszShortcutName);
|
|
|
|
//delete the send to shortcut
|
|
if (GetSendToInfo (lpszShortcutName, lpszFullExeName))
|
|
DeleteFile (lpszShortcutName);
|
|
}
|
|
|
|
BOOL GetShortcutInfo (LPTSTR lpszShortcutName, LPTSTR lpszFullExeName)
|
|
{
|
|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
|
|
|
|
*lpszShortcutName = '\0'; //precautionary measures
|
|
*lpszFullExeName = '\0';
|
|
CString szExe;
|
|
CString szShtCut;
|
|
int len;
|
|
|
|
szExe.LoadString (IDS_EXE);
|
|
szShtCut.LoadString (IDS_DESKTOP_SHTCUT);
|
|
|
|
len = GetSystemDirectory (lpszFullExeName, MAX_PATH);
|
|
if(0 == len)
|
|
return FALSE;
|
|
lstrcat(lpszFullExeName, LPCTSTR (szExe));
|
|
|
|
if('\0' == g_lpszDesktopFolder[0]) //try once again if we had failed before, or maybe this is the first time
|
|
{
|
|
if (FAILED(SHGetSpecialFolderPath(NULL, g_lpszDesktopFolder,
|
|
CSIDL_DESKTOPDIRECTORY, 0)))
|
|
{
|
|
g_lpszDesktopFolder[0] = '\0'; //we failed so give up.
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
lstrcpy (lpszShortcutName, g_lpszDesktopFolder);
|
|
lstrcat (lpszShortcutName, (LPCTSTR) szShtCut);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL GetSendToInfo (LPTSTR lpszSendToName, LPTSTR lpszFullExeName)
|
|
{
|
|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
|
|
|
|
*lpszSendToName = '\0'; //precautionary measures
|
|
*lpszFullExeName = '\0';
|
|
CString szExe;
|
|
CString szSendTo;
|
|
int len;
|
|
|
|
szExe.LoadString (IDS_EXE);
|
|
szSendTo.LoadString (IDS_SENDTO_SHTCUT);
|
|
|
|
len = GetSystemDirectory (lpszFullExeName, MAX_PATH);
|
|
if (0 == len)
|
|
return FALSE;
|
|
lstrcat (lpszFullExeName, (LPCTSTR) szExe);
|
|
|
|
if ('\0' == g_lpszSendToFolder[0]) //try once again if we had failed before, or maybe this is the first time
|
|
{
|
|
if (FAILED(SHGetSpecialFolderPath(NULL, g_lpszSendToFolder,
|
|
CSIDL_SENDTO, 0)))
|
|
{
|
|
g_lpszSendToFolder[0] = '\0';
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
lstrcpy (lpszSendToName, g_lpszSendToFolder);
|
|
lstrcat (lpszSendToName, (LPCTSTR) szSendTo);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//+--------------------------------------------------------------------------
|
|
//
|
|
// Member: CError::ConstructMessage
|
|
//
|
|
// Synopsis: this is an internal helper function that constructs a message
|
|
// from the available error codes it is called by both ShowMessage
|
|
//
|
|
// Arguments: [in] argList : the va_list of arguments
|
|
// [out] szErrMsg : the formatted error message
|
|
//
|
|
// Returns: nothing
|
|
//
|
|
// History: 10/2/1998 RahulTh created
|
|
//
|
|
// Notes:
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
void CError::ConstructMessage (va_list argList, CString& szErrMsg)
|
|
{
|
|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
|
|
|
|
TCHAR lpszMessage[2048];
|
|
|
|
szErrMsg.LoadString (m_msgID);
|
|
|
|
wvsprintf (lpszMessage, (LPCTSTR) szErrMsg, argList);
|
|
|
|
szErrMsg = lpszMessage;
|
|
|
|
if (ERROR_SUCCESS != m_winErr)
|
|
{
|
|
LPVOID lpMsgBuf;
|
|
DWORD dwRet;
|
|
dwRet = ::FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
|
FORMAT_MESSAGE_FROM_SYSTEM |
|
|
FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL,
|
|
m_winErr,
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
|
(LPTSTR) &lpMsgBuf,
|
|
0,
|
|
NULL
|
|
);
|
|
if (dwRet)
|
|
{
|
|
szErrMsg += TEXT("\n\n");
|
|
szErrMsg += (LPCTSTR) lpMsgBuf;
|
|
LocalFree (lpMsgBuf);
|
|
}
|
|
}
|
|
}
|
|
|
|
//+--------------------------------------------------------------------------
|
|
//
|
|
// Member: CError::ShowMessage
|
|
//
|
|
// Synopsis: displays an error message in a message box based on the
|
|
// members of the object
|
|
//
|
|
// Arguments: message id for the error + more
|
|
//
|
|
// Returns: the return value of the message box
|
|
//
|
|
// History: 10/1/1998 RahulTh created
|
|
//
|
|
// Notes: if the resultant message is longer than 2048 characters
|
|
// then result is unpredictable and may also cause AVs.
|
|
// but this is a limitation of wvsprintf. However, this is not
|
|
// so bad since we can make sure that we do not have any error
|
|
// message that exceed this self imposed limit
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
int CError::ShowMessage (UINT errID, ...)
|
|
{
|
|
AFX_MANAGE_STATE (AfxGetStaticModuleState());
|
|
|
|
va_list argList;
|
|
CString szErrMsg;
|
|
CString szTitle;
|
|
|
|
m_msgID = errID; //update the message ID with the new one
|
|
|
|
szTitle.LoadString (m_titleID);
|
|
|
|
va_start (argList, errID);
|
|
ConstructMessage (argList, szErrMsg);
|
|
va_end (argList);
|
|
|
|
return ::MessageBox (m_hWndParent, (LPCTSTR)szErrMsg,
|
|
(LPCTSTR) szTitle, m_nStyle);
|
|
}
|