关于SetUnhandledExceptionFilter设置无效的问题

zuojianyou 2010-12-14 10:08:44

功能：想捕获整个程序的异常，不用try catch，发现异常则程序重启。

#include <dbghelp.h>
#pragma comment(lib, "Dbghelp.lib")

// dmp输出

LONG WINAPI UnhandledFilter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
{
LONG ret = EXCEPTION_EXECUTE_HANDLER;
TCHAR szFileName[64];
SYSTEMTIME st;
::GetLocalTime(&st);
wsprintf(szFileName, TEXT("%04d-%02d-%02d-%02d-%02d-%02d-%02d-%02d.dmp"), st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond, st.wMilliseconds, rand()%100);

HANDLE hFile = ::CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
if (hFile != INVALID_HANDLE_VALUE)
{
MINIDUMP_EXCEPTION_INFORMATION ExInfo;

ExInfo.ThreadId = ::GetCurrentThreadId();
ExInfo.ExceptionPointers = lpExceptionInfo;
ExInfo.ClientPointers = false;

// write the dump

BOOL bOK = MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, MiniDumpNormal, &ExInfo, NULL, NULL );

if (bOK)
{
// printf("Create Dump File Success!\n");
}
else
{
// printf("MiniDumpWriteDump Failed: %x\n", GetLastError());
}

::CloseHandle(hFile);

}
else
{
// printf("Create File %s Failed %d\n", szFileName, GetLastError());
}
return ret;
}

void RegisterMiniDump()
{
::SetUnhandledExceptionFilter(UnhandledFilter);
}

void __fastcall TF_Main::FormShow(TObject *Sender)
{
RegisterMiniDump();

// 出错
char *p = NULL;
p[0] = 0;
}

始终不能捕获异常，没有进入到UnhandledFilter函数中。release版本

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