COM Discussion Boards

[James Pullicino]5-Jan-03 21:58

5-Jan-03 21:58

Does anyone know if its safe to have a map of _variant_t like the one below?

std::map<DWORD, _variant_t> VAPMAP;

Thanks.

Re: STL map of _variant_t

geo_m7-Jan-03 6:58

geo_m

7-Jan-03 6:58

I believe it is safe. I used it in few projects here around and I had no problem with.

Automation Problem with ROT (Running Object Table)

Alois Kraus3-Jan-03 5:57

Alois Kraus

3-Jan-03 5:57

Hello,

I have an ATL COM Server with one dual interface. I can instantiate
the interface via Javascript, VBScript, no problem. If one
instance of the interface exists, it registers into the ROT (Running Object Table). So far I could not figure out if I am doing the registration wrong
or my Javascript knowledge is too small to get my hands on the already running
interface via the ROT in JScript oder VBScript.

<br />
Var server;<br />
<br />
server = WScript.GetObject("","COMTest.Application");<br />

It always instantiates a new interface leading to two ROT entries!
The only method I know is:

<br />
Var server;<br />
<br />
server = WScript.GetObject(,"COMTest.Application");<br />

But this gives syntax error, but may work in Visual Basic (not script).
Which always useses the existing instance of the interface.

Any suggestions ?

Yours,

Alois Kraus

MS exchange server - deleting attachments

Ammad Amjad31-Dec-02 20:58

Ammad Amjad

31-Dec-02 20:58

Hi,

I want to delete all the bvs and exe files as the come into exchanger server and before user can get those emails. How can i do that?

This is urgent and response will be very much appreciated.

Thank you!
Ammad

We learn by sharing knowledge Smile | :)

Ammad

Re: help me!!!!!!!!!!!!!!!!!!!!!

Renjith Ramachandran31-Dec-02 20:46

Renjith Ramachandran

31-Dec-02 20:46

sorry this is COM section....

u want to send mail when u click some button/something?
http://www.codeproject.com/staticctrl/CMyHyperLink.asp

~~~~Code the Dreams~~~~~

Re: help me!!!!!!!!!!!!!!!!!!!!!

Anders Molin3-Jan-03 14:05

Anders Molin

3-Jan-03 14:05

Please don't cross-post (post in multible forums), it makes people kinda mad, and then you don't get any answers.

BTW, I did answer your question in the ATL/WTL forum.

- Anders

Money talks, but all mine ever says is "Goodbye!"

How to using the second IDispatch of a COM object in VBScript

bojinyu30-Dec-02 0:10

bojinyu

30-Dec-02 0:10

I design a COM object by ATL, which has two IDispath. Default dispatch is IPlot2D, and the second is IMIDraw.
IMIDraw has a method Plot(), how do I launch Plot() method?

Re: How to using the second IDispatch of a COM object in VBScript

Vi230-Dec-02 1:06

Vi2

30-Dec-02 1:06

Define some method of default IPlot2D interface which will return the IMIDraw interface.

<br />
In idl:<br />
[propget] HRESULT DrawManager([out,retval]IMIDraw ** ppDraw)

In C++:<br />
STDMETHODIMP HRESULT CPlot2D::DrawManager(/*[out,retval]*/IMIDraw ** ppDraw)<br />
{<br />
  return QueryInterface(IID_IMIDraw,(void**)ppDraw);<br />
}

<br />
In VB:<br />
Dim o As Plot2D, o2 As IMIDraw<br />
Set o = CreateObject("PlotLib.Plot2D") ' or = New Plot2D<br />
Set o2 = o.DrawManager<br />
o2.Plot<br />
' Or<br />
o.DrawManager.Plot

<br />
In VBScript:<br />
Dim o, o2<br />
Set o = CreateObject("PlotLib.Plot2D")<br />
Set o2 = o.DrawManager <br />
o2.Plot<br />
' Or<br />
o.DrawManager.Plot

With best wishes,
Vita

Re: How to using the second IDispatch of a COM object in VBScript

Jörgen Sigvardsson1-Jan-03 13:50

Jörgen Sigvardsson

1-Jan-03 13:50

You can't have 2 IDispatch interface on one COM object.

--
Only in a world this sh*tty could you even try to say these were innocent people and keep a straight face.

Re: How to using the second IDispatch of a COM object in VBScript

Renjith Ramachandran31-Dec-02 20:54

Renjith Ramachandran

31-Dec-02 20:54

QueryInterface

~~~~Code the Dreams~~~~~

How to register the Com+ component on Client without msi file?

Aaron K.B. Huang29-Dec-02 21:53

Aaron K.B. Huang

29-Dec-02 21:53

As the title, how can I perform that with programmatically?
My Com+ plus is inherited from ServicedComponent and implements
an interface(dual) defining by myself. Thanks ahead!

Re: How to register the Com+ component on Client without msi file?

pba_30-Dec-02 4:13

pba_

30-Dec-02 4:13

You can do it either by hand ( open Component Sevices console, etc) or programatically , using COMAdminCatalog component.

Re: How to register the Com+ component on Client without msi file?

Aaron K.B. Huang30-Dec-02 6:00

Aaron K.B. Huang

30-Dec-02 6:00

I know some of COMAdminCatalog, but i have no idea of those properties which are the correct ones to set. I set RemoteServerName and it really be set on the Com+ database but does not effect somewhat.

How to use a SafeArray

Anders Molin28-Dec-02 4:07

Anders Molin

28-Dec-02 4:07

I have never ever worked with a SafeArray, and I have a few problems using it Cry | :((

I have this line in my code:
SAFEARRAY *sa = kvset->GetKVSetArray(L"results");
where kvset is a COM Object.

My problem is that I know that the SafeArray sa contains IDispatch* interfaces.

But I cannot get a interface, and make a successfull QueryInterface on it...

Anuone have a couple of lines of code that does the trick?

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: How to use a SafeArray

Stephane Rodriguez.28-Dec-02 5:18

Stephane Rodriguez.

28-Dec-02 5:18

If that's a IDispatch*, then you might just as well end up with an Invoke method call. At least, that's what the IDispatch interface is for.

Re: How to use a SafeArray

Anders Molin28-Dec-02 5:55

Anders Molin

28-Dec-02 5:55

But how... Please...

Sorry to ask, but I have used the last 6 hours trying to get this stuff to work, and right now my brain has almost stopped working Dead | X|

This is the first time I have ever worked with a SafeArray, and it really baffles me Unsure | :~

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: How to use a SafeArray

Anders Molin28-Dec-02 8:57

Anders Molin

28-Dec-02 8:57

if anyone is interested, this did the trick Big Grin | :-D

SAFEARRAY *pSafeArray = kvset->GetKVSetArray(L"results");

IDispatch** pIDispatch;
SafeArrayAccessData(pSafeArray, (void**)&pIDispatch);

IKVSet *test;
pIDispatch[0]->QueryInterface(__uuidof(IKVSet), (void**)&test);

SafeArrayUnaccessData(pSafeArray);

//do something...
test->Release();

- Anders

Money talks, but all mine ever says is "Goodbye!"

Using Office xp(2000) Chart

Majid Shahabfar25-Dec-02 10:12

Majid Shahabfar

25-Dec-02 10:12

Hi dear,
I'm looking for an article or sample, demonstrates using Office xp(2000) Chart in a VC++ or C# project.
Thank you in advance.

problems with ATL/DCOM

H.P24-Dec-02 23:09

H.P

24-Dec-02 23:09

In Client program CoCreateInstanceEx returns 0x80040154 - "Class not registered" even though the class is registered. Also OLE/COM Viewer is not showing me the object (only typelib). My server is .exe and is 'Attributed'. Also noticed that when creating a non-attributed ATL server project , class can be seen in OLE/COM Viewer, but it doesn't expose custom interfaces (only IUnknown, IClientSecurity, IMultiQI and IMarshal).
Can anybody help me out here?

Re: problems with ATL/DCOM

Renjith Ramachandran31-Dec-02 22:20

Renjith Ramachandran

31-Dec-02 22:20

try to unregister your ATL.dll and re register that...

~~~~Code the Dreams~~~~~

Re: problems with ATL/DCOM

Chen Jiadong13-Jun-07 20:47

Chen Jiadong

13-Jun-07 20:47

i've got the same problem.

I created a regular COM object with ATL, it worked fine by using the CoCreateInstance(), and then install the COM object to a COM+ application with Component Services administrative tool, when I try to call CoCreateInstance in my client code, I got "no such interface supported" error, the returned HRESULT is E_NOINTERFACE. But if I delete the object from COM+ application, and just register the component with regsvr32 command, my client works, again. Anything I have missed when I installed the component into the COM+ application?

DCOM Server File Access

Sasa Kajic24-Dec-02 14:00

Sasa Kajic

24-Dec-02 14:00

My DCOM server (developed in VC++ NET) can not access file system (eg. create files, etc...) but he runs on administrator account. Can anyone tell me why ?

Re: DCOM Server File Access

AlexO26-Dec-02 4:09

AlexO

26-Dec-02 4:09

If you mean system account (for example as a service), this is by default. You have to enable rights or work as another user to access file system

Popup/Alertboxes in WebBrowser Control

p_khasnis23-Dec-02 1:16

p_khasnis

23-Dec-02 1:16

Hello,

I want to know if there is any way to get an handle to PopUp box / Alert box.
These alert's are mostly displayed by Javascript functions on a webpage display.

I have a Webbrowser Control in my C++ application(mfc) and need to know when the Alert box is shown and also what was the user's action on it(He/she might click OK or Cancel button).

Thanking you in advance.

Prasad

Need help using object in ATL ActiveX EXE window services server.

bahruddina22-Dec-02 17:50

bahruddina

22-Dec-02 17:50

hi,

I'm developing ATL ActiveX EXE server that runs as a Window services using ATL wizard.
This server contains one ATL object (CTest).
How I can set the server so that when it started (via Window Services Applet), the server will :

1) initiate/create CTest.
2) Call method/function in this ATL object (CallMe).
3) destroy CTest when server stopped.

Thanx in advance.

Regards.

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