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Try SAFEARRAY.
But I think it is not recognized by MIDL compiler. Let me know if you find some other way of using arrays in IDL that MIDL recognizes.
Have a great day ahead!
Regards,
Sohail Kadiwala
(My Blog - http://blogs.wdevs.com/sohail/[^])
modified 21-Apr-21 21:01pm.
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SAFEARRAY(BSTR) should be recognised and understood perfectly well by MIDL. I've worked on projects that made heavy use of these things, and stuff like SAFEARRAYs of user defined types
Steve S
Developer for hire
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Hi Steve,
the MIDL compiler doesn't understand SAFEARRAY (I read it in some article). Can you lead me to some good resource/URL where more on this is shown?
Have a great day ahead!
Regards,
Sohail Kadiwala
(My Blog - http://blogs.wdevs.com/sohail/[^])
modified 21-Apr-21 21:01pm.
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Good resource would be "Essential IDL" written by Martin Gudgin, or "Essential COM" by Don Box.
If you write
HRESULT getList([out]SAFEARRAY(BSTR)*ppsa);
in your IDL for the interface method, in your C++ you have
STDMETHOD(getList)(SAFEARRAY**ppsa);
as a definition, and
STDMETHODIMP class::getList(SAFEARRAY**ppsa)
{
...
}
as your implementation. In IDL, the array type is known (and can be a simple type, like 'long' or 'DATE', or even a user defined type (structure)).
One issue is that if you're using the MIDL that came with VC++6, you might want to upgrade by downloading the Platform SDK.
In your implementation, you need to create a SAFEARRAY, and fill in the pointer properly. There must be loads of code out there, google for "SAFEARRAY IDL SOURCE" or look here[^] for some examples of more complicated stuff...
Steve S
Developer for hire
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Hi Steve, I am in very much need of Safearray related concepts and methodologies and its use in MIDL file.because I need much use of it too pass large values from COM Dll to VB in meterological projects and M/c related projects.Plz send me some codes and some URL where I can get get proper conceptual knowledge of SAFEARRAY with code.I'm currently facing difficulty in Passing SAFEARRAY from ATL/COM DLL to VB in an Event.So please help me.I am a memeber of this group by name Akshay Dave.My mail id is avd9683@rediffmail.com,
akshayd@eqqu.com.
Awaiting eagerly 4 ur reply.
Akshay Dave
Akshay Dave
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You need to read either (or both) Essential IDL and Essential COM, or at a minimum, look for examples on MSDN and other sites (like this one) which use SAFEARRAYs. Google for SAFEARRAY SAMPLE or SAFEARRAY SOURCE which should help you get started.
Alternatively, my rates for training (if you're UK based) are quite competitive 
Steve S
Developer for hire
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hi
I would like to remote control Word. As I can insert a new tabellenzeile thank you
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hi
unfortunately I find there also nothing in addition
thanks
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(Isn't this a FAQ?)
To do this, you need to understand what parts you want to control, and know about the object model for Word. The easiest way is to record a VBA macro that does what you want, and examine it to see how it works. Often you will be able to 'optimise' the equivalent C++ code, although converting is sometimes tricky. To get you started there used to be a VBA -> C++ "conversion" tool on the MS web site (look for BTOC, I think)
Steve S
Developer for hire
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hi steve thank you for your answer
what is this "C++ "conversion" tool on the MS web site (look for BTOC, I think)
i know it on VB, but i will it in VC++
i have no idea 
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Go to MSDN and enter 216388 in the search page. Should give 3 hits, top one B2CSE.EXE is what you want.
Steve S
Developer for hire
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I want to pass array of double in an Event using Atl/Com so that the complete array must be visible in VB through that event.Awaiting for response as soon as possible.
Akhsay Dave
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Hi !
Is it possible to take an existing MFC application and to manually add code such, that the application becomes a COM exe server ?
I found something about such a "supported addition" --> "How to Add ATL Support to an MFC EXE" http://support.microsoft.com/default.aspx?scid=kb;EN-US;175190 but it doesn't seem to work. I think that that example does't deal with COM EXE but just with plain COM.
Can anybody shed a light on this subject ?
Thanks
Roland Rubichi
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Hi !
Is it possible to take an existing MFC application and to manually add code such, that the application becomes a COM exe server ?
I found something about such a "supported addition" --> "How to Add ATL Support to an MFC EXE" http://support.microsoft.com/default.aspx?scid=kb;EN-US;175190, but it doesn't seem to work. I think that that example does't deal with COM EXE but just with plain COM.
Can anybody shed a light on this subject ?
Thanks
Roland Rubichi
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hi,
I am trying to convert (in my ASP.NET app) html document into .doc. My solution is to use automation and simply load html doc into word 2003, and then use document.SaveAs() to save it like word document. My problem is that after .doc is created, it is in wrong encoding ( or did word really produce sequence of random characters? ) I am not sure if problem is really with encoding, or if there is something else.
Let the code speak:
<br />
Object missing = System.Reflection.Missing.Value;<br />
Object confirmConversions =false;<br />
Object isReadOnly = false;<br />
Object format = Word.WdOpenFormat.wdOpenFormatAuto;<br />
Object encoding = missing;<br />
Object visible = true;<br />
Object noPrompt = true;<br />
Object origFormat =missing;<br />
Object saveChanges = false;<br />
Object revert = false;<br />
Object addToRecent = true;<br />
Word.Document doc= null;<br />
try<br />
{<br />
doc = oWord.Documents.Open(ref fileName, ref confirmConversions, ref isReadOnly, <br />
ref addToRecent,ref missing, ref missing, ref revert, ref missing,ref missing,<br />
ref format,<br />
ref missing,<br />
ref encoding,<br />
ref missing, ref missing, ref missing, ref missing);<br />
doc.Activate();<br />
<br />
Object newFileName=HTMLContractURL+".doc";<br />
Object newFileFormat = Word.WdSaveFormat.wdFormatDocument;<br />
Object readOnlyRecomended = false;<br />
<br />
Object lockComments = false;<br />
Object saveFormsdata = false;<br />
Object saveAsAOCLetter = false;<br />
Object embedTT = false;<br />
Object saveNativePF = true;<br />
doc.SaveEncoding = Microsoft.Office.Core.MsoEncoding.msoEncodingUTF8;<br />
oWord.ActiveDocument.SaveAs(ref newFileName, ref newFileFormat,<br />
ref lockComments, ref missing, ref addToRecent, ref missing,<br />
ref readOnlyRecomended, ref embedTT, ref saveNativePF, ref saveFormsdata,<br />
ref saveAsAOCLetter, ref encoding, ref missing, ref missing,<br />
ref missing, ref missing);<br />
maybe oWord.SaveEncoding is bad, bt I added it WHILE debugging, so it wasn't working even without that line.
Since I need it done soon, I really appreciate any help.
Thanx a lot,
David 'DNH' Nohejl
Never forget: "Stay kul and happy" (I.A.)
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Hi,
I have file as shown in the link:
http://mickey.ccs.uky.edu/doubt/a.doc
I need to parse the file and get the various text information present in it. Also, I need to differentiate whether it came
from process or data(see file.)
Any help to achieve this would be highly appreciated.
Are there any ways to access the content of an OLE object ?
Looking forward for replies.
Thanks
Ignatius
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Hello. I write small plugin for IE - URL filter. I write it as Browser Helper Object in C++ using ATL. When DISPID_BEFORENAVIGATE2 method is fired - I get the url where surfer will go. I get it from pDispParams array and I have no problems with that. But when surfer click a link that must be opened in new window (via target="_blank") - DISPID_BEFORENAVIGATE2 is not fired, but DISPID_NEWWINDOW2 is fired. This event does not tell url for new window location. How can I get the Url of new location in case with new window? Thanks, and sorry for bad english if so.
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I have an ATL/MFC COM DLL which a customer is trying to use from Delphi 6 Enterprise SP2. He was having trouble setting properties, and eventually discovered that all of the Set_* procedures in the auto-generated TLB file are empty. The only ones that aren't empty are for BSTR properties.
We have no problems using the DLL from C++, VB or ASP.
Has anybody experienced something like this? Am i missing a MIDL keyword? Is it a build/linker setting? Do I need to specify something in my .DEF file? Or is Delphi to blame?
---
Here's how things are defined in my project:
// from my .idl file
[propput, helpstring ("blah"), id(6)] HRESULT RepeatCount([in] long newVal);
// from the corresponding .h file
STDMETHOD(put_RepeatCount)(/*[in]*/ long newVal);
// from the corresponding .cpp file
STDMETHODIMP CMyClass::put_RepeatCount(long newVal)
{
AFX_MANAGE_STATE(AfxGetStaticModuleState())
m_lRepeatCount = newVal;
return S_OK;
}
// from Delphi's auto-generated MyDLL_TLB.BAS
procedure TMyClass.Set_RepeatCount(pVal: Integer);
begin
Exit;
end;
---
Thanks,
Gary
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Hi guys.
I have an out-of-process COM server, which has numerous clients connecting and disconnecting to/from it. Server must know about every client instance connected to the it. The problem is, that when a client is abnormally terminated server has NO way to determine that the client is not there anymore, and this situation is very unhealthy. Does anyone know how to solve this problem?
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sergeyv2002 wrote:
Does anyone know how to solve this problem?
There's many ways to this out-of-band. For instance with "pings" using TCP, pipes, shared memory, etc. I am not sure if there are any other methods in pure COM. Maybe there are in COM+, but that doesn't help you much I imagine.
Out-of-band is the only way to go that I can think of.
--
Weiter, weiter, ins verderben.
Wir müssen leben bis wir sterben.
I blog too now[^]
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Hmm.. wait. There's another way that might work. Each time a client connects, require them to pass an IPingable* reference to themselves. Then call IPingable::Ping() regularly to see if the client is still alive. I believe you'd get an RPC_E_XXX error message back when the connection has been severed.
However, this would require circular references, so you'd need to setup up some termination protocol so that both server and client will release eachother.
--
Weiter, weiter, ins verderben.
Wir müssen leben bis wir sterben.
I blog too now[^]
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Hello Jorgen,
I think the IPingable interface is a good idea. I too have a need for such an infrastructure for my EXE COM server to check the "live" status of its clients.
Thanks for sharing the idea.
Best Regards,
Bio.
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