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how do i pass array of values from an ATL(dll) component to a client (VB)??
"But your mind is very complex, very tricky. It makes simple things complicated. -- that's its work. And for centuries it has been trained for only one thing: to make things so complicated that your life becomes impossible."- Osho
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--[V]--
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The easiest way is probably as a SAFEARRAY in a VARIANT.
Use the SafeArray* functions to create the SAFEARRAY.
Then put the array into the variant using VT_ARRAY|<array element="" type="" index=""> as the VARIANT type.
HTH.
Stuart Dootson
'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'
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In ATL there is a wrapper class for SAFEARRAYs called CComSafeArray. It simplifies using of arrays in COM.
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Hi All,
i have made a Customized Webbrowser using ATL in VC++ ,we have used IE Control & IWebBrowser2 interface for this, the browser is working fine, but the major problem is The context menus on the webpage(eg:when u right click on the webpage the menu like Undo,Cut,Copy,Paste,Delete,SelectAll will be displayed)
in these Cut& Copy are not working, r
emaining all are working fine..
when i have used the Command of IOleCommandTarget Exec method
ex: i did Like
CComPtr<iwebbrowser2> m_spBrowser;
CComPtr<iolecommandtarget> pComTarget;
m_spBrowser->QueryInterface(IID_IOleCommandTarget,(void**)&pComTarget);
pComTarget->Exec(NULL, OLECMDID_PASTE, OLECMDEXECOPT_DONTPROMPTUSER, NULL,NULL);
pComTarget->Exec(NULL, OLECMDID_PASTE, OLECMDEXECOPT_DONTPROMPTUSER, NULL,NULL);
by using this method all operations working fine except CUT& COPY
Please i need help Regarding this,
Thanks
Vijay Kumar T
-- modified at 6:10 Monday 28th November, 2005
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Has anyone successfully built the boost library using VS2005?
ed
~"Watch your thoughts; they become your words. Watch your words they become your actions.
Watch your actions; they become your habits. Watch your habits; they become your character.
Watch your character; it becomes your destiny."
-Frank Outlaw.
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Have you tried and failed? In theory it's supposed to work, according to the Boost page.
Kevin
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Tried with 1.33. Most of it built but some of it didn't and there were some buffer overruns during the build. I might try one of the betas.
Thanks!
ed
~"Watch your thoughts; they become your words. Watch your words they become your actions.
Watch your actions; they become your habits. Watch your habits; they become your character.
Watch your character; it becomes your destiny."
-Frank Outlaw.
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With beta 2, yes.
I just used bjam with a toolset of "vc-8_0", like it says on the Getting Started page. At that time, there were a few problems -one of the libraries wouldn't build (but I didn't need it) and also they tried to build a statically linked or single-threaded CRT version when there isn't one.
Anyway, it just worked?
Stuart Dootson
'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'
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Didn't use the beta. I used 1.33. Several buffer overruns and as you stated some of the libraries didn't build.
Moving to the beta!
Thanks.
ed
~"Watch your thoughts; they become your words. Watch your words they become your actions.
Watch your actions; they become your habits. Watch your habits; they become your character.
Watch your character; it becomes your destiny."
-Frank Outlaw.
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Bit of a misunderstanding - I meant I'd used beta 2 of Visual Studio 2005, rather than the retail version...I've only built released builds of 1.32 & 1.33, no betas.
Sorry for any confusion!
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I have built boost_python and boost_signals with VC 2005 Express without problems. The other libs did not compile. (boost_1_33_0).
-- modified at 4:28 Monday 12th December, 2005
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Hi,
I am working on ATL Project where i am getting this link error. I used the below setting while creating the project MFC+Merge Proxy/Stub. How to eliminate this error
Linking...
mfcs71d.lib(dllmodul.obj) : error LNK2005: _DllMain@12 already defined in MSVCRTD.lib(dllmain.obj)
mfcs71d.lib(dllmodul.obj) : warning LNK4006: _DllMain@12 already defined in MSVCRTD.lib(dllmain.obj); second definition ignored
Creating library Debug/SASIExport.lib and object Debug/SASIExport.exp
Thanks,
Cool Ju 
Cool Ju
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I solved the problem. The problem is the order in which these libraries are inlcuded. I got a good article from Codeguru which helped me to solve this bug.
this is the link[^]
Anyway Thanks,
Cool Ju
Dream Ur Destiny
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Hi,
I have a method the fires an event. But I have not been able to find the way to capture the event in VC++. I can get this event through VB but I need it in VC.
Please help.
Thanks in advance.
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Thanks Eric. Wasn't what I was look 4 but appreicated the help.
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Hello w_logan,
What you want to develop is an "Event Sink". If you are using ATL, create a class that inherits from IDispEventImpl. You will also need to include the BEGIN_SINK_MAP(), SINK_ENTRY_EX() and END_SINK_MAP() macros. Of course, your class will have to implement the event function itself. The great thing about the sink map macros is that you choose only those events that you want to supply handlers for. You do not need to implement handlers for all the events.
An alternative to using the above-mentioned ATL constructs is to use my TEventHandler class. Please read my article :
"Understanding COM Event Handling" (http://www.codeproject.com/com/TEventHandler.asp[^])
- Bio.
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Thanks Bio. I had already read the article when I was doing my research. It was a great article.
I had initially intended to use "Event Sink" to solve my problem but I work around it by another mean.
Actually, I had a COM DLL with multiple objects within it. But I had only expose the main object class. My problem arise when one of my internal object needs to fire a event to the app using my DLL. As only the main interface is expose, the internal object can't fire the event direct to the app.
I was trying use the main object to sink the event and fire it again. But I never really got the way for doing the sink coding properly. Nonetheless, I worked around it by send the point to the main object inwards to the internal object and use this pointer to fire the event. It may not be the proper way to solve the problem but it solve my problem for now.
Nonetheless, thanks for the help again. (If you remember, you had help this fellow Singaporean on several other occasion.)
Cheers
-- modified at 22:09 Tuesday 22nd November, 2005
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Hello w_logan,
Yes, I remember you. We had corresponded som months ago I believe. How are you ? I hope you're doing well. Just a few comments :
>> Actually, I had a COM DLL with multiple objects within it. But I had only expose the main object class. My problem arise when one of my internal object needs to fire a event to the app using my DLL. As only the main interface is expose, the internal object can't fire the event direct to the app.
Comment : you may want to re-think about the design of your interfaces. Since the internal object needs to fire an event to your app, this may signal a need for the internal object's interface to be exposed to the app directly.
On the other hand, if the internal object is meant to be internal afterall, then its events should rightfully be handled internally as well. The main object should be the handler for the event and it is a completely separate matter whether or not this main object ought to further "relay the message" to the app.
>> I was trying use the main object to sink the event and fire it again. But I never really got the way for doing the sink coding properly.
Comment : there are many ways to connect sinks with sources I guess. Just be careul about inter-thread event firing which will require marshaling. However, if everything happens on one thread, marshaling may not be so important.
>> Nonetheless, I worked around it by send the point to the main object inwards to the internal object and use this pointer to fire the event. It may not be the proper way to solve the problem but it solve my problem for now.
Comment : again, be careful about directly passing interface pointers here and there espacially across threads. Marshaling may be required.
- Bio.
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Lim Bio Liong wrote: - Bio.
Hai Sir,
I am waiting for an article on IDispEventImpl from your side  ...
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Hello Alok !
How are you dear friend ? Enthusiastic as usual. It's very contagious
Yes, it'd be great if there's an in-depth dissertation on ATL's IDispEventImpl. Especially one that can show how to use it in MFC apps. I'll see if I can get some time on this.
But how about yourself, Alok ? Would very much like to see you contribute another winner !
Best Regards,
Bio.
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Lim Bio Liong wrote: How are you dear friend ? Enthusiastic as usual. It's very contagious
Ohh I am Alright Sir!.. As Usual ..
Lim Bio Liong wrote: Yes, it'd be great if there's an in-depth dissertation on ATL's IDispEventImpl. Especially one that can show how to use it in MFC apps. I'll see if I can get some time on this.
Thats would be Great ... if you find some time for that!
Lim Bio Liong wrote: But how about yourself, Alok ? Would very much like to see you contribute another winner !
Thats so nice of you, Sir!...But I am still in learning phase ... but as always its requires your help to get started ...
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Could someone tell me what I may be doing wrong with my rebar usage here. I have a multi-threaded SDI app with the auto-generated rebar in the frame window. I want to add a band with a generic window or dialog as its child window. So I have something like this in my frame window's OnCreate:
CMyRebarWindow rbw;
rbw.Create(m_hWnd);
AddSimpleReBarBand(rbw, _T("Title"));
rbw.Detach();
For the CMyRebarWindow class I've tried just basically empty derived classes from CWindowImpl<> and CDialogImpl<>. I get an access violation somewhere deep into the Win32 ::ShowWindow function call for the frame window, possibly related to the WM_SYNCPAINT message (I say this because every so often the debugger stops in a different place, somewhere in the handling of this message. If I replace the CMyRebarWindow with, for example, a CComboBox, everything is fine.
Are there some restrictions on the type of windows you can use within a rebar band? Any ideas what is causing this? I realise it may be something stupid since I've just started using WTL.
On a side note, can someone explain what happens with command and notification messages from controls in rebar bands - I noticed that with a CCombo box in there, the command messages that came through to the frame window, like CBN_SELENDOK for example, came not with the correct ID of the combo box, but with an ID of 1 for some reason.
Any help on any of this would be much appreciated. Thanks.
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i am trying to access mehod of ocx but its showing runtime error
HRESULT hret;
try
{
CoInitialize(NULL); // init of Com
hret = testPtr.CreateInstance(__uuidof(TestOCX));
testPtr->Check(); //Crash here
}
catch( _com_error &e )
{
// Get info from _com_error
_bstr_t bstrSource(e.Source());
_bstr_t bstrDescription(e.Description());
TRACE( "\tCode = %08lx\n", e.Error());
TRACE( "\tCode meaning = %s\n", e.ErrorMessage());
TRACE( "\tSource = %s\n", (LPCTSTR) bstrSource);
TRACE( "\tDescription = %s\n", (LPCTSTR) bstrDescription);
}
catch(...)
{
TRACE( "*** Unhandled Exception ***" );
}
can anybody help me for the same
thanx
regards
Rajesh
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