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I wrote a dll by C#, and the issue is that I don't know how to call this dll from vb6.
Thank all.
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try "tlbexp" . in vb6 , you can fin it in object reference.
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Hi, all!
I have a following problem, and i can't find a right solution.
Description:
There is a COM server written on C++ and it works through IDispatch and it does't have a TYPELIB. And from another side there is a COM client developed on C#. Through LATE BINDING it uses a COM server
and COM server sends different events to client, but i can't implement COM event handling mechanism.
Please, anybody can help me?!
Thanks in advance!
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If you have a look in the registry below HKEY_CLASSES_ROOT\CLSID\{<clsid of the server>}, does it contain a key named 'TypeLib'?
If not, do you have an .idl file where the interfaces of the server are defined?
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
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maybe you could check whether server app contains typelib using vs2005 ,like wlm.
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Hi all,
I am been having trouble with finding an answer to this question but here goes:
Is there any way to write to MSWORD without automation through ASP.NET in C# (maybe write to an existing word document without opening it)?
I am pulling my hair out! I have tried adding IUSR, ASPNET to the web server, I have tried Identity Impersonate = True in the web.config.
My code for opening word looks like this:
object isVisible = true;
object readOnly = true;
I get a Macro storage error on the open statement. I have put a lot of time into figuring this out and I really dont want to do a TOTAL 180.
wordDoc = WordObj.Documents.Open2000(ref fileName, ref missing, ref readOnly, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref isVisible);
I appreciate any ideas or suggestions given!
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I have a Local Server created in MFC. It displays a modal dialog with a "logout" button. It also contains a COM coclass "A" to which clients are connected. Everything works fine till all clients follow proper reference count rules.
But if a client terminates abnormally, then this coclass "A" has an outstanding reference count on Local server. When user clicks "logout" button, the application dialog closes but the server continues running in background because of this outstanding reference count.
I understand that when the proxy no longer exists in this case, the stub will do a cleanup automatically but after few minutes.
But the requirement is to force the application to shutdown completely when "logout" button is clicked. I have thought of few ways to do it, but I would like to know your thoughts on this so I can choose the best possible solution.
Thank you for your time.
S o h a i l K a d i w a l a
To Err Is Human; to Debug, Divine
modified 21-Apr-21 21:01pm.
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i have a query that i have made a plugin(toolbar) that actually works in Outlook but the problem is that the Toolbar(plugin)also appear in the Microsoft Word and also in MS Excel i want that this toolbar plugin should only be seen and acceble in the Outlook so if anyone know the solution kindly help me in this matter
thanks in advance
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if you implement _IDTExtensibility2, you could check application name at OnConnection().
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Hello
I have created com dll in vb 6.0. I used it to generate the WSDL file using
Microsoft SOAP tool kit version 3 but i am not able to use the WSDL file. I am able to use the dll which i have created in vb 6.0. follwing Error is generated.
---------------------------<br />
SOAPPermitCodeTest<br />
---------------------------<br />
There is error <br />
<br />
Client:An unanticipated error occurred during the processing of this request. HRESULT=0x800A13BE - Client:Sending the Soap message failed or no recognizable response was received HRESULT=0x800A13BE - Client:Unspecified client error. HRESULT=0x800A13BE<br />
---------------------------<br />
OK
is there is any method to know that generated WSDL file is correct, I do not know how to verify this as i am new to these technologies(SOAP and WSDL).
Any help would be highly appreciated.
Saurabh Gupta
Software Engineer
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Hi
Created a small VB 6.0 ActiveX control Which has an event CallMe. This event is triggered when a button the control is clicked.
Public Event CallMe()
Public Property Let Text(value As String)
txtString.Text = value
End Property
Public Property Get Text() As String
Text = txtString.Text
End Property
Private Sub cmdFireEvent_Click()
RaiseEvent CallMe
End Sub
I have tested it with a VB 6 project and it worked.When i tried to use the control in a web page, events are not getting fired.
Sub myCtrl_CallMe()
MsgBox "yes"
End Sub
<object id="myCtrl"
="" classid="clsid:55F1D62E-0C61-4637-BA76-594B493A0341">
What should be the problem?
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Actually i want to modify my registry entry to someother but some where i read that it is the sensitive area if a small problem occurs then the entire system wont work. So please suggest what are the things i need to change i want to modify the registry entry of my component.
Thanx,
Kalaveer.![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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export all register. if os boots fail, you could boot from safe mode by F8 and restore it. ok
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Hi
i am trying to change a component code a little bit to display some statusbar messages etc. By the way the component is devoloped in VB so i did a small change initially to the code like changed the cursor style and code to display some status message after that i did "make DLL" then that worked well on registering the newly created dll. But after that i included a single statement to setfocus to someother control and again i did the makedll this time on registering the dll the component is not at all activating so i removed the statement which i included (i.e to setfocus of some control)again i created the new dll using make dll but unfortunately the new dll(which is like the previous worked one ) not activating the component.
What could be the problem why its happening so. Please help me.
Thanks in advance.
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In VB project properties, there are some settings for Version compatibility. The GUID must be changing on each compile probably. Please check these settings. Since I haven't worked with VB so this is just a guess. See if this is your problem.
S o h a i l K a d i w a l a
To Err Is Human; to Debug, Divine
modified 21-Apr-21 21:01pm.
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Hihi, I am the newbies in Visual Studio, I have programming background . but not in visual studio.
Now i need to write a IE toolbar by VS 2005 . As i known , i need to understand the COM.
But i am really don't know how to go on . even in the interface of the visual studio 2005.
Can anyone have some advice for me ? or sample code ? or recommend book ?
Thanks
Sam
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You need to study BHO[^].
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I don't understand ?
pop up blocker ??
can you explain more ? thanks
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Link I provided was of search result of BHO on CP. You need to browse through those articles, to find appropriate one.
Read BHO from MSDN,too.
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you could have a look http://www.codeproject.com/atl/#IE+%2F+Explorer+plug%2Dins
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Hello,
I've just tried to handle an OPC-interface with VC++ 6.0
Therefor I create an Instance of the interface to get the a pointer of this interface.
This should be ok,
but...
when I want to get access to the methods of the interface, I always get unknown failure codes back:
Interface Instance:
IOPCBrowseServerAddressSpace* InstantiateOPCBrowseServerAddressSpace(wchar_t ServerName[])
{
HRESULT hr;
CLSID CLSID_OPCServer;
CLSID CLSID_OPCServer2;
void** ppIntfObj = NULL;
// Get GUID and UUID from regsitry for COM-Server
hr = CLSIDFromProgID(ServerName, &CLSID_OPCServer2);
ShowError(hr);
// Queue of Class-Instances to create
LONG cmq = 1; // number of class instances to create
MULTI_QI queue[1] = {{&IID_IOPCBrowseServerAddressSpace,
NULL,
0}};
//Create an instance of the IOPCBrowse
hr = CoCreateInstanceEx(CLSID_OPCServer, NULL, CLSCTX_SERVER, /*&CoServerInfo */ NULL,
cmq, queue);
ShowError(hr);
// Return Pointer to the IOPCBrowse Interface
return(IOPCBrowseServerAddressSpace*) queue[0].pItf;
}
In my main-method, I try to work with the interface,
but I only get two different failures as HRESULT:
0x000006F4 in the first attempt.
and 0xC0000005 in the second and third attempt. (this means here Access Violation?)
Implementation in main-method:
CoInitialize(NULL); //Using MS Com library
//Instanciate Browse-Interface
IOPCBrowseServerAddressSpace *pOPCBrowse2 = InstantiateOPCBrowseServerAddressSpace(L"SOFTING.OPCToolboxDemo_ServerDA");
//Declarations for OPCBrowse
HRESULT hr;
OPCBROWSEDIRECTION dwBrowseDir = OPC_BROWSE_TO;
hr = pOPCBrowse2->ChangeBrowsePosition(dwBrowseDir, NULL);
ShowError(hr);
OPCNAMESPACETYPE *pNameSpaceType;
hr = pOPCBrowse2->QueryOrganization(pNameSpaceType);
ShowError(hr);
OPCBROWSETYPE dwBrowseType = OPC_FLAT;
LPENUMSTRING *pIEnumString;
hr = pOPCBrowse2->BrowseOPCItemIDs(dwBrowseType, NULL /*Filter*/, 0, 0, pIEnumString);
ShowError(hr);
...
Where could be my problem.
The interface is defined in an IDL-Sheet from the OPC-Foundation.
Perhaps you've got an intension, if there is anything wrong with my interface handling or coding?
Thanks for your work at this time
Biasto
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Please check the reference count.
Biasto wrote: // Queue of Class-Instances to create
LONG cmq = 1; // number of class instances to create
MULTI_QI queue[1] = {{&IID_IOPCBrowseServerAddressSpace,
NULL,
0}};
//Create an instance of the IOPCBrowse
hr = CoCreateInstanceEx(CLSID_OPCServer, NULL, CLSCTX_SERVER, /*&CoServerInfo */ NULL,
cmq, queue);
ShowError(hr);
// Return Pointer to the IOPCBrowse Interface
return(IOPCBrowseServerAddressSpace*) queue[0].pItf;
}
Just curios, If you retrieve only one instance then why are you using CoCreateInstanceEx?
S o h a i l K a d i w a l a
To Err Is Human; to Debug, Divine
modified 21-Apr-21 21:01pm.
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I get failure when I'm using only CoCreateInstance!
And it doesn't something with COM-related problems.
I've found the solution, just to declare all arguments for the OPC-interface function, in a logical way, otherwith the access to the interfaces fails with an null pointer receive-failure.
Therefore the specification of the opc foundation is very unusual to understand!
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I have a COM/ATL out-of-proc server whose main object is a singleton. I will call this Object A. Object A is called by other out-of-proc servers, but they are on the same machine so I am not worried about DCOM, etc. Object A uses a third party library (another set of COM objects) which generally works well but has a couple of known problems which can crash the Object A server (the problem can be reproduced). I have isolated this library into its own out-of-proc server to protect the Object A server. The library of the new server contains an object (I will call it Object B) which gets a reference to Object A. Object A releases its reference to Object B, but Object B maintains its own reference until its work is done. When the work by Object B is done, it notifies Object A, releases Object A and then releases itself. When all other servers are done and release Object A, then Object A is released and goes away normally.
If in the middle of its work, Object B crashes, it takes down its own server but the server which owns Object A is unharmed... except, that it still thinks there is another server out there which has a reference to it, so it won't shut down when all other out-of-proc servers have released their references.
Object A also maintains a watch on the Object B process so it knows if the Object B process has crashed.
Efforts to decrement the interface count on Object A when Object B crashes were not helpful and could have caused other problems (the reference count in Object A does not appear to be affected by Object B... I am assuming an internal reference count and an external referece count... but if so, where is the external reference count stored and can it be decremented???).
Ultimately, I need to get Object A back to the state it had before it created Object B.
I am also posting this in the ATL forum.
Thanks.
m.bergman
-- For Bruce Schneier, quanta only have one state : afraid.
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