SEH 代碼執行個體

以下內容來自 <windows核心編程>

執行個體1：

int UnderstandSeh()

{
int dwTemp = 0;
while (dwTemp < 10)
{
__try
{
if (2 == dwTemp)
{
continue;
}
if (3 == dwTemp)
{
break;
}
}
__finally
{
dwTemp++;
}
dwTemp++;
}
dwTemp+=10;
return dwTemp;

}

結果：14

執行個體2：

bool TrySEH()
{
int *p = NULL;
int *q = NULL;
bool bFunctionOk = false;
__try
{
p = new int;

if (NULL==p)
{
__leave;
}
q = new int;
if (NULL==q)
{
__leave;
}

bFunctionOk = true;
}
__finally
{
if (p!=NULL)
{
delete p;

p = NULL;
}
if (q!=NULL)
{
delete q;

q = NULL;
}
}
return bFunctionOk;

}

執行個體3：
DWORD TryExceptSEH()
{
DWORD dwTemp = 0;
__try
{
dwTemp = 5/dwTemp;
dwTemp+= 10;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
MessageBeep(0);
}
return dwTemp;
}
結果：0