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Sorry, I don't have any handy internet references available. I have not solved your problem before either. Well, I did it the lazy way by not including the coclasses in the IDL file. Had I not been on vacation right now, I could've experimented on your behalf to find a smart solution, because it is not unlikely that I will face this problem myself.
One really bad "hack" I can think of right now, is to make the rgs-script associated with your COM class, an empty script. That should ensure that it is not registered at all. But please make sure that you use the CComObject<> template to instantiate the objects, otherwise the COM module's lock count will not be incremented (IIRC, that's the problem with just new-ing the objects). As I have not tried this hack at all, I can't say for certain that it will work. It could be the case that the rgs script parser doesn't allow empty script, in which case all you have to do is add some "dummy script" in your rgs file. Your mileage may vary. 
Good music: In my rosary[^]
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Oh yeah.. in case you have not used the CComObject template, this is the way you use it:
CComObject<CYourClass>* pObj;
HRESULT hr = CComObject<CYourClass>::CreateInstance(&pObj);
pObj->AddRef();
CComObject will however stabilize the refcount during the construction phase (temporarily incrementing it). I think.  (It should!)
Good music: In my rosary[^]
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Thanks for the quick reply and thanks for taking the trouble to reply even when you are on vacation.
One last question, how do you think the VB recordset example I use is implemented?
Currently what I feel is that recordset is a get_property under ADODC and when this is call the pointer to the recordset object is in my COM is passed returned.
But I found a project in code project that use a method to implement this, It does return the pointer of the inner object.
Please dun take too much of your time on this, just give me your nbest guess. Thanks and enjoy your holiday.
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Hi
I am trying to use the EM_GETLINE message to get the text of a particular line but i am not able to send the last parameter i.e the lpram..for the SendMessage function... anyone plz let me know how to do this... i am doin in the following way
char[] buffer = new char[255];
buffer[0] = (char)255;
Message msg = Message.Create(this.Handle, EM_GETLINE, (IntPtr)Index, (IntPtr)buffer[0]);
base.DefWndProc(ref msg);
return msg.Result.ToInt32();
but it gives me a error like.. "Attempted to read write protected memory. This is often indication that other memory is corrupt." F1! F1!
cheers
Chettu
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Hi Every one
Can any body guide me that how one can set Launch Permissions Programmatically for any DCOM Component through vc++ or VB.
actually i want to give specific groups lauch permission to one of my DCOM
component while installation of application.
Thanks and Regards.
Mohammad Kamran
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Hello
I have a ActiveX component created in VB6, (where it works fine!). But when I implement the ActiveX component into VS.NET web application, on the client side, the methods(in the Active X) dont function as they should. Is there anything I have to do to my activeX before I implement it into VS.NET??
Spaz
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Hi All,
I am facing one problem regarding SOAP. Below mentioned is the scenario.
I m writing a soap client. I want to access the services of COM. The COM Method what I am using is not returning any thing other than HRESULT as return value. Is there any way to get the HRESULT value in Soap Response?
Ashish
Regards,
Ashish Gupta | Systems Engineer | S I E M E N S Information Systems Ltd
Telephone: (080) 28091092
Mobile : (0) 94483 82115
www.siemens.co.in
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Hello
I wanted to know how to register an ActiveX.EXE file (writen in VB6).
as long as regsvr32.exe only registers ActiveX.dll and .OCX files.
I tried running the file, but it didn't help while I had a previously registered activex exe (which the same name) in some other location. when I try to create an object from the activex exe, the object returned from CreateObject is the object from the first activex..
How can I create an object from the second activex exe?
(THE FIRST ACTIVEX.EXE WAS REGISTERED BY VB6 WHILE I COMPILED IT)
Also I'd be glad if you tell me how to unregister the activex exe file?
Thanks in advance.
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Hello,
For registering Activex exe,you have to register separately.Regsvr32 or compilrer unable to register Active X exe. If you want to know more plz contact me .....;)
sanjayrvyas
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Hello
I'd be glad if you here describe how should I register the activex exe...
Please tell the details while I have never had any idea of how to register an activex exe.
(Should I generate the ClassID and add it to registery? if yes, how?)
Thanks in advance
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I finally could find the answer:
To register the activex exe:
ActvieX.EXE /regserver
and to unregister it:
ActiveX.EXE /unregserver
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I'm having a problem understanding how to register Windows Shell extensions, specifically for PropertySheet extensions and their handlers.
I am not too happy with the way it's done here -
Property Sheet Shell Extension in C#
Also, can anyone direct me to an example in VB.NET for the same sort of thing that's described in that article? That is, a property sheet extension example.
Thanks for any help - Ian Thomas
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I'm working on a COM control that's used in several places. We use ATL to work with it, in VC++. We use the COM control as an embedded control in HMTL, and also in a "standalone" application. So here's the problem. We want to listen for the arrow keys to scroll over a document, and there's an OnKeyDown handler defined, etc. This function gets called just fine when the control is in "standalone" application. I can use the debugged to see it being called when the user presses a key, and the scrolling happens. However, when we're running embedded in HTML... the OnKeyDown function never gets called! However, pressing the arrow keys will scroll the HTML page in IE.
Does IE not pass the arrow keys messages to COM controls, or what? Is there something special I need to do make IE pass the messages on?
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As an update, I've discovered that the OnKeyUp event does arrive, but not the OnKeyDown event. WTF mate?
vir·tu·al re·al·i·ty
n. Abbr. VR
A computer simulation of a real or imaginary universe in which Microsoft APIs are thoroughly documented and behave in an entirely logical manner.
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Is there any method to interact with IE (press buttons, fill forms) from outside Win32 Application?
Please help.
(any links or samles)
Thank you.
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Hello,
I´ve created a COM Event client (using IConnectionPoint... etc. interface). It works fine if there is not too much load (i.e. events fired from the server); because the client needs some time to process the event.
However, I´m not sure who´s responsible for the "Event Queue"? What happens if there are more events comming from the server which the client can´t process within the same time? Has the server to queue the event`s? Or has the client to take care of all events and that events get lost if the client "is not ready"?
I read a lot of (good) articles concerning COM Events. But I can´t find any detailed information about this topic.
Can anyone help me with this question?
Thank you in advance,
Stefan
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COM event is implemented through call back interface,the client is responsible for the creation of the interface which is also called event sink.
when COM server fires a event,the server searchs event map array to find corresponding event entry, if the server find event response function implemented by client,then the event is processed.
So,as you see, there is no event queue.If your server
is a single thread application,the server will not continue until the client has finished the processing of the event.
If you want to be a great programmer,then never stoplearning
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But: What happens if the COM Server is not running in the same thread? Maybe even not within the same process?
The server will continue to fire events but the client is not able to process fast enough? Who´s responsible to "store" the events fired from the server?
Or are these events lost when the server fires and the client is not ready to process it?
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My leader wants us to developpe a COM architecture without using connection points to perform communication between different objects. He things that connection point are not absolutely necessary to fire each other about some event so we won't use them. After all, he says, some other mechanism do exist to perform the same functionnalities like "windows messages" or "named pipes"...
But I don't understand the utility to "not use" a dedicated service provided by COM. I thing that the tools provided by COM or DCOM (a part of the app will run on another machine) are useful to avoid developping myself such a communication mechanism.
Could anyone give me some arguments to choose ?
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I am building a data structure as a .dll file using COM since I want to access it from VB. The data structure is made up of multiple nested structures each of which I have built using an ATL object. Now I want to aggregate those objects so that the interfaces of all the inner objects are available via a single outer object. I followed all the steps in the book COM and ATL 3.0 by Andrew Troelsen. But I am only able to access the interface that is declared as [default] in the .idl file.
PLEASE HELP. This has me in tears, literally!!!
Regards
Prashant
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Hi ,
Use the OLE data types. And define structre in idl/odl like:-
typedef
[
uuid(AAFBADE2-63FE-465B-BCAF-28990FB6C20C),
version(1.0),
helpstring("User Data Type")
]
struct UDTVariable {
[helpstring("Special case variant")] VARIANT Special;
[helpstring("Name of the variable")] BSTR Name;
[helpstring("Value of the variable")] long Value;
} UDTVariable;
And add the structure name in
library TESTATLOBJLib
{
importlib("stdole32.tlb");
importlib("stdole2.tlb");
struct UDTVariable;
[
uuid(9033744D-D0EB-42AB-89BB-5F950790F9E4),
helpstring("UserData Class")
]
}
and it work properly.
For more infromation pls go below link
"http://www.codeproject.com/atl/udtdemo.asp"
Anuj
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I had a problem while adding a popup menu to Word. The popup menu is being added to Word and is not removing after closing the Word (even if I made the Menu item to TEMPORARY). One new popup menu is being added every time I open the MS Word. The same case with menu item.
please help to solve this.
Here below my code:
CComVariant varType(10);
CComVariant vtEmpty(DISP_E_PARAMNOTFOUND, VT_ERROR);
CComVariant vtTemp(VARIANT_TRUE);
CComVariant vtBefore(nMenuIndex);
// Adding the new menubar
CComPtr<commandbarcontrol> spCtrl;
spCtrl = spCtrls->Add(varType, vtEmpty, vtEmpty, vtBefore, vtTemp);
ATLASSERT(spCtrl);
CComQIPtr< Office2000::CommandBarPopup > spPopup(spCtrl->GetControl());
ATLASSERT(spPopup);
// Setting the new menubar properties
spPopup->PutCaption(OLESTR("&Templates"));
spPopup->PutVisible(VARIANT_TRUE);
// now add a menubar to the menubar
CComPtr<office2000::commandbarcontrols> spCmdBarCtrls;
spCmdBarCtrls = spPopup->GetControls();
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i have written a simple chat application with some utils but it just
works locally. Although i can access with my ip adress from local, my friend can not connect my server app from home. I think it is about security rules
of WinXP professional. And of course maybe is not. How can i make it available to myfriend?;P
C U SOON
C U SOON
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