openevent return access denied

Question

0.00/5 (No votes)

See more:

I have created Event
HANDLE h = CreateEvent(NULL, FALSE, FALSE, "eventname");
And open it in another process
HANDLE h1 = OpenEvent(EVENT_MODIFY_STATE, FALSE, "eventname");

It work fine when I run normally.
But when I have created event in windows service it gives error Access denied while opening event.
Can anybody give sujjection to this problem

Posted 17-Jul-11 23:51pm

Member 8067579

Updated 17-Jul-11 23:56pm

వేంకటనారాయణ(venkatmakam)

v2

Add a Solution

Comments

Herman<T>.Instance 18-Jul-11 5:54am

under which user runs the windows service?

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Espen Harlinn · Answer 1 · 2011-07-18T00:27:00

Here is the signature for CreateEvent

HANDLE WINAPI CreateEvent(
  __in_opt  LPSECURITY_ATTRIBUTES lpEventAttributes,
  __in      BOOL bManualReset,
  __in      BOOL bInitialState,
  __in_opt  LPCTSTR lpName
);

You ave to pass a SECURITY_ATTRIBUTES structure granting access to the user (or a group) that will call OpenEvent.

Take a look at Creating a Security Descriptor for a New Object in C++[^] - it shows how to work with SECURITY_ATTRIBUTES.

Best regards
Espen Harlinn

Mohibur Rashid · Answer 2 · 2011-07-18T04:17:00

Solution 2

I think it has something to do with first parameter LPSECURITY_ATTRIBUTES. in msdn it is suggested "If this parameter is NULL, the handle cannot be inherited by child processes.".

You better try to fix this issue.

MSDN link

Posted 18-Jul-11 4:17am

Mohibur Rashid