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Hello,
I have a multi threaded MFC exe built with all its basic classes including CSocket, with TCP connection through mainframe etc. , I want to split it to two different components. ATL service and MFC GUI. Can I do it and can I use the MFC classes in the ATL service.
Thanks in advance,
Eyal
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You can certainly split it up, yes
Some of the MFC classes are now shared with ATL, I'm not too sure about CSocket - I would guess not very easily, looking at the afxsock header
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Hey there guys,
I have an almost opinion question. I am writing an instant messenger software, and I am trying to decide on the internal API parsing method. I cannot decide if I want to have a one-size-fits-all method that parses the entire command then returns the specific section I need, or less simple-to-use library of functions that read individual functions.
Basically, the command structure is like this: (Let's say you are registering a new connection)
REG(##,{your username},{the password salted hash})
My first method would return the username when called as api_GETVALUE(2,"REG(33,username,passwordsalthash)"). If I changed the first argument to 1, it would return 33 (the length).
If I did individual functions, I could get the length by calling api_GETLENGTH with the string as a parameter, api_GETUSERNAME for the username, etc.
How would you guys do it personally?
--
Collin
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Your first option would have a problem in that you would have a single function that returns either a stirng (or maybe pointer to string) or an integer. But this is not legal in C++, as the compiler cannot distinguish (from return type alone) which one you mean. A better option would be to create a class (or structure) that holds the user information and has methods (getters) that return the relevant properties.
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 first sorry for my poor english..
i have an "ATL simple object" interface like "IErrSupport" , and i want to use it as a parameter like:
(ISomething) DoSomething(...,IErrSupport *pErr);
...
(IOtherthing) DoOtherthing(...,IErrSupport *pErr);
can anybody give me an example? thanks a lot.
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(IOtherthing) DoOtherthing(...,IErrSupport *pErr);
Assuming that pErr points to an object that implements IErrSupport then you already have it.
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i assumed like that ,but i don't know what to do .
my step:
1. crete a new atl project, maybe it named TestA.
2. Add a class "A";
3. IA Add methods like TestErr(IErrSupport *pErr);
4. compiling...
.\TestA.idl(19) : error MIDL2025 : syntax error : expecting a type specification near "IErrSupport"
.\TestA.idl(19) : error MIDL2026 : cannot recover from earlier syntax errors; aborting compilation
5. add import "../ErrSupport/ErrSupport.idl"; to TestA.idl ,compiling...
d:\errsupport\testa\testa_i.h(69) : fatal error C1083: Cannot open include file: 'ErrSupport.h': No such file or directory
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astupidboy wrote: fatal error C1083: Cannot open include file: 'ErrSupport.h': No such file or directory
That should give you a clue.
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but there's no such file ...
could you leave your email,and i send the project to you ?
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astupidboy wrote: but there's no such file
Then you need to create it.
astupidboy wrote: could you leave your email,and i send the project to you ?
Sorry, no, I'm not an ATL expert, and don't have the tools to build it.
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any example? i'm too stupid
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Hello, I have a recordset which contains a lot of data , I need to save it into map or any kind of dictionnary (which have a key and other data)
I have for example :
pRecordset->MoveFirst();
while (!pRecordset->EndOfFile)
{
vIdTrans =pRecordset->Fields->Item["id_translation"]->Value;
vCaption =pRecordset->Fields->Item["id_caption"]->Value;
vLang =pRecordset->Fields->Item["id_language"]->Value;
vTranslation =pRecordset->Fields->Item["translation_text"]->Value;
strIdTrans = CUtils::GetVariantAsCString(vIdTrans);
strCaption = CUtils::GetVariantAsCString(vCaption);
strLang = CUtils::GetVariantAsCString(vLang);
strTranslation = CUtils::GetVariantAsCString(vTranslation);
- id_translation : key of table
- id_caption and id_language are REFERENCES from other tables.
- translation_text : data
So , what I need after is getting data by (id_caption and id_language) and it will be more better if (id_caption, id_language and id_translation)
how do that ?
}
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I have the chain of inheritance :
coclass _A
{
[default] interface _IA;
};
coclass _A_1
{
[default] interface _IA_1;
};
coclass A
{
[default] interface IA;
[default, source] dispinterface _IA_ControllerEvents;
};
interface _IA : IDispatch{
interface _IA_1 : _IA{
interface IA : _IA_1{
all class inherits from IDispatchImpl
In the COM map of the class CA that expose the interface IA, I didn't know the correct code and how I manage the macros COM_INTERFACE_ENTRY and COM_INTERFACE_ENTRY2
So I do :
BEGIN_COM_MAP(CA)
COM_INTERFACE_ENTRY(IA)
COM_INTERFACE_ENTRY2(IDispatch, _IA)
COM_INTERFACE_ENTRY(IConnectionPointContainer)
COM_INTERFACE_ENTRY(ISupportErrorInfo)
COM_INTERFACE_ENTRY(_IA)
COM_INTERFACE_ENTRY(_IA_1)
END_COM_MAP()
is this correct ? or should I add an other macro COM_INTERFACE_ENTRY2 like this :
COM_INTERFACE_ENTRY2(_IA, _IA_1)
?
Thank you.
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Hi,
I have understood that in Windows 8 CP x64 the IE 10 is a 64 bit browser, but it is triggering 32 bit containers while Enhanced protected mode if OFF.
In this scenario, I am trying to lunch a .exe from my ActiveX using create process. Here createprocess() is failing with GetlastError() returning ZERO.
The same code works fine and successfully launching the .exe in Protected mode off.
Can any one put some light what additional stuff need to be done to achieve above mentioned scenario.
Birajendu
SonicWALL
Bangalore
India
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Hello Friends,
I have to expose "ATL simple object" interface.
Now, I wanted to expose 3 interface objects. Each one has some common functionality, hence I am trying to keep common functionality in abstract class.
Now, my requirement is that each three class should have their own methods plus common functionilty [methods like Lock] inherited from common abstract base class.
Please suggest. Helpfull link would really help.
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For those interested in this question, there are a couple of answers already:
How to do inheritance in ATL[^]
Pablo.
"Accident: An inevitable occurrence due to the action of immutable natural laws." (Ambrose Bierce, circa 1899).
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I have created a STL List<customer> customer_list with several detail properties. all works fine.
However I now need to store a list of string for each customer. I have added a STL List<string> string_list to the customer object which is accessible the problem is the data in the list is not persisted.
Is it possible to have a list within a list? what could be the reason for the list not persisting the data?
Regards
Mark
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Although it is possible to have a list within a list, it would help if you could post some relevant code.
You should use the STL vector class instead of a list if you do not do insertions and deletions from the middle of the list.
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When you say persist do you mean...
a) After setting up string_list the next time you look the data isn't there?
b) The thing won't write to a file automatically?
c) Something else!
Cheers,
Ash
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If elements in your STL list are more than just a simple type, you can wrap it up into an object, and just have STL list of objects.
I used it in a few places in the following article: ProSysLib: Dissecting the Process[^]
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I need to generate the .H file (contains the interfaces, attributes...) from the DLL COM c++.
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In Visual Studio, use #import.
It generates (and includes in your project) two files, with the extensions .tlh and .tli (short for 'type library header' and 'type library include'), and automatically includes them in your project.
You'll find more in the documentation for #import.
Hope this helps,
Pablo.
Pablo.
"Accident: An inevitable occurrence due to the action of immutable natural laws." (Ambrose Bierce, circa 1899).
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