Solved

Firing ActiveX control Error event in ATL

Posted on 2002-06-12
4
303 Views
Last Modified: 2013-11-25
    ActiveX control can support a standard Error event. I'm writing an ActiveX control using ATL and want to fire this event to the container. In MFC I would use COleControl::FireError(). Is there something similar in ATL? Of course, I can retrieve IDispatch pointer that the container have passed to my control via IConnectionPoint::Advise and then call Invoke on this pointer, but this seems a lot of trouble with setting up parameters.
0
Comment
Question by:mythos128
4 Comments
 
LVL 12

Accepted Solution

by:
migel earned 100 total points
ID: 7074811
Hi!
of course you can rise Error from the ATL code.
1. Your Object must implement ISupportErrorInfo interface (there is checkBox in the wisard).
2. Return error code by ATL method Error()
for example:
return Error(IDS_..., IID_..., MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF,1026));

where IDS_ - id of the resource string that describe your error;
1026 - your error code.
IID_... your interface GUID that method rises error.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Download a file from microsoft that contains all hotfixes and updates 9 60
Best book to learn C++ 4 70
Authentication of Web Services 3 46
x-bar in Google Sheets 2 25
Introduction: Finishing the grid – keyboard support for arrow keys to manoeuvre, entering the numbers.  The PreTranslateMessage function is to be used to intercept and respond to keyboard events. Continuing from the fourth article about sudoku. …
Entering time in Microsoft Access can be difficult. An input mask often bothers users more than helping them and won't catch all typing errors. This article shows how to create a textbox for 24-hour time input with full validation politely catching …
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now