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Code Snippet - Access Violation Exception Info
Author:Arkon
Category:Win32API
File Size:649 Bytes
Uploaded at:03-Oct-05 05:16:59 am
Description:
  Shows how to retrieve the failing address which caused to an AV exception.
  
long MyFilter(long excode, _EXCEPTION_POINTERS *ep)
{
char buf[100] = {0};
if (excode == EXCEPTION_ACCESS_VIOLATION) {
_EXCEPTION_RECORD* er = ep->ExceptionRecord;
sprintf(buf, "AV at: 0x%08x, from: 0x%08x", er->ExceptionInformation[1] /* Invalid Address */, ep->ContextRecord->Eip);
MessageBox(0, buf, "exception", 0);
return EXCEPTION_EXECUTE_HANDLER;
}
return EXCEPTION_CONTINUE_SEARCH;
}


int main(int argc, _TCHAR* argv[])
{
long* a = (long*)0x555555;
__try {
*a = 0x1234;
}
__except(MyFilter(GetExceptionCode(), GetExceptionInformation()))
{
MessageBox(0, "ah uh", "exception", 0);
}
return 0;
}
=0){ mysqli_data_seek($res,$row); $resrow = (is_numeric($col)) ? mysqli_fetch_row($res) : mysqli_fetch_assoc($res); if (isset($resrow[$col])){ return $resrow[$col]; } } return false; } function ViewComments($pt, $pid, $topic, $conn) { $res = mysqli_query($conn, "SELECT ThreadID FROM CommentThreads WHERE ParentType='$pt' AND ParentID='$pid'") or die("type+id not found"); if (mysqli_num_rows($res) == 0) { echo "\r\n"; // no comments for this thread, just let the user enter one. echo ""; echo ""; echo "
User Contributed Comments(None)
"; displaySubmissionForm($pt, $pid, "", "", "", $topic); echo "
"; return; } $threadid = mysqli_result($res, 0); $res = mysqli_query($conn, "SELECT * FROM Comments WHERE ThreadID='$threadid' ORDER BY Date ASC") or die("no entries"); $colsel = 0; $index = 0; $bgcolors = Array(0 => "#5d88bb", 1 => "#6699dd"); $comments_count = mysqli_num_rows($res); echo ""; if ($comments_count != 0) { echo ""; echo ""; } //comments exist end if echo "
User Contributed Comments(" .$comments_count .")
\r\n"; while($comment = mysqli_fetch_array($res)) { $index = $index + 1; // Point to last inserted comment... if ($index == $comments_count) echo "\r\n"; $submitter = $comment[Name]; // Add email if exists if (strlen($comment[EMail])) { $submitter = "$submitter"; } echo ""; $colsel = ($colsel + 1) & 1; } echo "
 [" .strval($index) ."] " .$submitter ." | " .$comment[Date] ."

" .$comment[Comment] ."
"; displaySubmissionForm($pt, $pid, "", "", "", $topic); echo "
"; } return; function displaySubmissionForm($pt, $pid, $comment, $name, $email, $topic) { //if (strlen($comment) == 0) $comment = ""; if (strlen($name) != 0) $name = "value=\"" .$name ."\""; if (strlen($email) != 0) $email = "value=\"" .$email ."\""; print << NOTE:
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END; } ?>