Add minidump helper class files

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository@407 f5eea248-9336-0410-98b8-ebc06183d4e3

PowerEditor/src/MISC/Exception/MiniDumper.cpp

@@ -0,0 +1,82 @@
+#include "MiniDumper.h"
+#include "Common.h"
+#include <shlwapi.h>
+
+LPCTSTR msgTitle = TEXT("Notepad++ crash analysis");
+
+MiniDumper::MiniDumper()
+{
+}
+
+bool MiniDumper::writeDump(EXCEPTION_POINTERS * pExceptionInfo)
+{
+	TCHAR szDumpPath[MAX_PATH];
+	TCHAR szScratch[MAX_PATH];
+	LPCTSTR szResult = NULL;
+	bool retval = false;
+
+	HMODULE hDll = ::LoadLibrary( TEXT("DBGHELP.DLL") );	//that wont work on older windows version than XP, #care :)
+
+	if (hDll)
+	{
+		MINIDUMPWRITEDUMP pDump = (MINIDUMPWRITEDUMP)::GetProcAddress( hDll, "MiniDumpWriteDump" );
+		if (pDump)
+		{
+			//lstrcpy(szDumpPath, TEXT("C:\\N++RECOV\\NppDump.dmp"));
+			::GetModuleFileName(NULL, szDumpPath, MAX_PATH);
+			::PathRemoveFileSpec(szDumpPath);
+			lstrcat(szDumpPath, TEXT("\\NppDump.dmp"));
+
+			// ask the user if they want to save a dump file
+			int msgret = ::MessageBox(NULL, TEXT("Do you want to save a dump file?\r\nDoing so can aid in developing Notepad++."), msgTitle, MB_YESNO);
+			if (msgret == IDYES)
+			{
+				// create the file
+				HANDLE hFile = ::CreateFile( szDumpPath, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS,
+											FILE_ATTRIBUTE_NORMAL, NULL );
+
+				if (hFile!=INVALID_HANDLE_VALUE)
+				{
+					_MINIDUMP_EXCEPTION_INFORMATION ExInfo;
+
+					ExInfo.ThreadId = ::GetCurrentThreadId();
+					ExInfo.ExceptionPointers = pExceptionInfo;
+					ExInfo.ClientPointers = NULL;
+
+					// write the dump
+					BOOL bOK = pDump( GetCurrentProcess(), GetCurrentProcessId(), hFile, MiniDumpNormal, &ExInfo, NULL, NULL );
+					if (bOK)
+					{
+						wsprintf( szScratch, TEXT("Saved dump file to '%s'"), szDumpPath );
+						szResult = szScratch;
+						retval = true;
+					}
+					else
+					{
+						wsprintf( szScratch, TEXT("Failed to save dump file to '%s' (error %d)"), szDumpPath, GetLastError() );
+						szResult = szScratch;
+					}
+					::CloseHandle(hFile);
+				}
+				else
+				{
+					wsprintf( szScratch, TEXT("Failed to create dump file '%s' (error %d)"), szDumpPath, GetLastError() );
+					szResult = szScratch;
+				}
+			}
+		}
+		else
+		{
+			szResult = TEXT("The debugging DLL is outdated,\r\nfind a recent copy of dbghelp.dll and install it.");
+		}
+	}
+	else
+	{
+		szResult = TEXT("Unable to load the debugging DLL,\r\nfind a recent copy of dbghelp.dll and install it.");
+	}
+
+	if (szResult)
+		printMsg(szResult, msgTitle);
+
+	return retval;
+}

PowerEditor/src/MISC/Exception/MiniDumper.h

@@ -0,0 +1,22 @@
+//Adapted from http://www.codeproject.com/KB/debug/postmortemdebug_standalone1.aspx#_Reading_a_Minidump_with%20Visual%20Stud
+//Modified for use by Npp
+#ifndef MDUMP_H
+#define MDUMP_H
+
+#include <windows.h>
+#include "dbghelp.h"
+
+// based on dbghelp.h
+typedef BOOL (WINAPI *MINIDUMPWRITEDUMP)(HANDLE hProcess, DWORD dwPid, HANDLE hFile, MINIDUMP_TYPE DumpType,
+									const PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
+									const PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
+									const PMINIDUMP_CALLBACK_INFORMATION CallbackParam
+									);
+
+class MiniDumper {
+public:
+	MiniDumper();
+	bool writeDump(EXCEPTION_POINTERS * pExceptionInfo);
+};
+
+#endif //MDUMP_H