How can i sort the elements of the CListCtrl by clicking the Column Heading - ATL / WTL / STL Discussion Boards

Anthony98875-Apr-06 9:07

5-Apr-06 9:07

Hi,

I'm trying to use the CAxWindow class to create a runtime control in a CDialog box. I have no problem creating the control but how can I call the methods of the control.

Thanks

Re: CAxWindow

Michael Dunn5-Apr-06 13:36

Michael Dunn

5-Apr-06 13:36

See my WTL series part 6[^]

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: CAxWindow

Anthony98876-Apr-06 4:44

Anthony9887

6-Apr-06 4:44

Hi Michael,

The problem I'm having is my Active(ocx) control does not have any interface pointers. All I have is dispinterface for the ocx. Do you know how I call the methods of this control.

Thanks

Re: CAxWindow

Stuart Dootson7-Apr-06 23:06

Stuart Dootson

7-Apr-06 23:06

You'll be calling it through IDispatch. Use IDispatch::GetIDsOfNames to map method names to IDs, then use those in IDispatch::Invoke. To discover what methods are avaialable, use IDispatch::GetTypeInfo.

Have a look at the source for CComDispatchDriver::Invoken in the ATL that comes with VC++ 6 for some guidance.

how can I use control ?which book I shoud see?

heboy3-Apr-06 17:37

heboy

3-Apr-06 17:37

I am a beginner.My first program is show a picture on one static control which based on dialog!And I use WTL to do it,is there some example code ?
Or which book shoud I read!
Pre_thank you for give me a direct!My english is very poor,sorry!Just can read some comment!
I will online wait for you today!

heboy, the name is same as my real name!its meaning is "river "

Re: how can I use control ?which book I shoud see?

Michael Dunn4-Apr-06 11:46

Michael Dunn

4-Apr-06 11:46

I have a series on WTL starting here[^], however it probably won't be too helpful if you have no Windows or GUI programming experience already.
I always advise newbies to start at the API level, and not to move on to libraries until you have a very good understanding of how the APIs work.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: how can I use control ?which book I shoud see?

heboy4-Apr-06 15:45

heboy

4-Apr-06 15:45

thank you !I think I know some about API !your help is very useful! And your
advice is good for me!

heboy

How can i sort the elements of the CListCtrl by clicking the Column Heading

Jitendra Shri3-Apr-06 17:24

Jitendra Shri

3-Apr-06 17:24

Hi all,
I am using ATL COM application, in which i am having a list control, i want that by clicking the particular column the elements of that column sorted out how can i do it ...Plz help me out

I write one callback function for sorting and i called that function in the OnColumnClickListname handler i share my code

LRESULT OnColumnclickList1(int idCtrl, LPNMHDR pnmh, BOOL& bHandled)

{
// My code started here
m_ctrllist.Attach(GetDlgItem(IDC_LIST1));
HD_NOTIFY *phdn = (HD_NOTIFY *) pnmh;
m_ctrllist.SortItems(SortFunc, phdn->iItem);
m_ctrllist.Detach();

//My code ends here

return 0;
}

static int CALLBACK SortFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{

int nRetVal;

PITEMDATA pData1 = (PITEMDATA)lParam1;
PITEMDATA pData2 = (PITEMDATA)lParam2;

switch(lParamSort)
{
case 0:
nRetVal = strcmp(pData1->empcode,
pData2->empcode);
break;

case 1:
nRetVal = strcmp(pData1->empname,
pData2->empname);
break;

case 2:
nRetVal = strcmp(pData1->designation, pData2->designation);
break;

default:
break;
}

return nRetVal;
}

Re: How can i sort the elements of the CListCtrl by clicking the Column Heading

Igor Vigdorchik4-Apr-06 7:24

Igor Vigdorchik

4-Apr-06 7:24

Use CSortListViewCtrlImpl, it does sorting for you.

Base64Encode

gyzmau3-Apr-06 4:04

gyzmau

3-Apr-06 4:04

Hi I'm using ATL just for one function.
Base64Encode.
I don't make server or network i want juste Encode a string.
I try to make it with an example
from CodeProject:

CString sSource = "ToEncode";<br />
<br />
int nDestLen = Base64EncodeGetRequiredLength(sSource.GetLength());<br />
CString str64;<br />
Base64Encode((const BYTE*)(LPCSTR)sSource, sSource.GetLength(), <br />
             str64.GetBuffer(nDestLen), &nDestLen);<br />
str64.ReleaseBuffer(nDestLen);<br />
cout<<(LPCSTR)str64;

It said me Cannot convert CString to LPCSTR one first argument of Base64Encode.

I'm working under VS2005.
It's the right way to do what i want?
Is there a better way, maybe something else than ATL?
How to correct this error?

Thanks for your answer.
Sorry for my poor english i'm not an english-speaking

Re: Base64Encode

SilentSilent5-Apr-06 0:16

SilentSilent

5-Apr-06 0:16

gyzmau wrote:
Is there a better way, maybe something else than ATL?

You can find many places with Base64 code on the internet, e.g.
http://www.ruffboy.com/download.htm[^]

How can i sort list in the ATL application

Jitendra Shri31-Mar-06 3:09

Jitendra Shri

31-Mar-06 3:09

Hi all,
I am using ATL wizard to make my ATL application and i have ClistCtrl and i want to sort the list,How can i do this if any one having any idea please share it,it will be very thankfull to me
Thanks in advance

Re: How can i sort list in the ATL application

Milton Karimbekallil1-Apr-06 3:01

Milton Karimbekallil

1-Apr-06 3:01

By default CListCtrl will sort items in ascending order.
You can control sort order programatically by setting the style LVS_SORTASCENDING or LVS_SORTDESCENDING

cheers..mil10.

Re: How can i sort list in the ATL application

Igor Vigdorchik2-Apr-06 10:26

Igor Vigdorchik

2-Apr-06 10:26

Just use CSortListViewCtrlImpl, that's all.

how to declare a method with out parameter

baldha rakesh30-Mar-06 23:26

baldha rakesh

30-Mar-06 23:26

i am new with ATL , i want to declare a method which have a out parameter, i am decalaring this like

[id(1), helpstring("method calcution")] HRESULT calcution([in] int ival1 ,[in] int ival2,[out] int& iret);

but i compiled this is giving errors like
syntax error : expecting a declarator or * near "&"
syntax error : expecting ) near "&"

please give me answer as soon as possible.

Bankey Khandelwal
Software Engineer

Re: how to declare a method with out parameter

Stephen Hewitt30-Mar-06 23:39

Stephen Hewitt

30-Mar-06 23:39

IDL doesn't have references. Try this:

[id(1), helpstring("method calcution")] HRESULT calcution([in] int ival1, [in] int ival2, [out, retval] int *pRet);

Steve

Re: how to declare a method with out parameter

baldha rakesh31-Mar-06 1:58

baldha rakesh

31-Mar-06 1:58

thanx this is done.

Bankey Khandelwal
Software Engineer

Late binding on ATL COM dll

HakunaMatada29-Mar-06 22:04

HakunaMatada

29-Mar-06 22:04

Hi,

How Do I implement late binding on a COM Addin which I created using ATL?

Thanks.. Smile | :)

---
With best regards,
A Manchester United Fan

The Genius of a true fool is that he can mess up a foolproof plan!

Re: Late binding on ATL COM dll

Stuart Dootson29-Mar-06 22:35

Stuart Dootson

29-Mar-06 22:35

Implement the IDispatch interface. Here's the IDL file for an AddIn I implemented for VC6

// DSWENV.idl : IDL source for DswEnv.dll
//

// This file will be processed by the MIDL tool to
// produce the type library (ComVC.tlb) and marshalling code.

import "oaidl.idl";
import "ocidl.idl";

[
	uuid(0c8dd9f0-2391-447a-b6dd-72aea4db9dc4),
	version(1.0),
	helpstring("Visual C++ Build Environment Loader Add-In 1.0 Type Library")
]
library DSWENVLib
{
	importlib("stdole32.tlb");
	importlib("stdole2.tlb");
	importlib("devshl.dll");
	importlib("ide\devdbg.pkg");

	[
		uuid(01b836c6-51c8-4476-bf15-ae91b0fe74f6),
		oleautomation,
		dual
	]
	interface ICommands : IDispatch
	{
		[id(1), helpstring("method RereadEnvironment")] 
		HRESULT RereadEnvironment();
	};

	[ hidden, uuid(0309A24D-B3E7-4C6A-8ACD-B3F0F8FAA483) ]
	coclass ApplicationEvents
	{
		[default] dispinterface IDispApplicationEvents;
	}

	[
		uuid(6c5658bc-946b-4bc7-94bf-5530cad3d654)
	]
	coclass Commands
	{
		[default] interface ICommands;
	};

	[
		uuid(3d3eb2a1-8ce9-4555-89cd-d989a6b3009e)
	]
	coclass DswEnv
	{
		[default] interface IUnknown;
	}

};

If you pick the correct options when creating the class, all the hard work gets done for you Smile | :)

Re: Late binding on ATL COM dll

HakunaMatada29-Mar-06 22:44

HakunaMatada

29-Mar-06 22:44

Thanks a lot for your answer. Smile | :)

But if my Idl is smething like this then...

import "oaidl.idl";<br />
import "ocidl.idl";<br />
	[<br />
		object,<br />
		uuid(23BB6C3D-AF30-4622-AE80-F19B29A964A7),<br />
		dual,<br />
		helpstring("IOutlookAddin Interface"),<br />
		pointer_default(unique)<br />
	]<br />
	interface IOutlookAddin : IDispatch<br />
	{<br />
		<br />
	};<br />
[<br />
	uuid(B6AE2F8A-DA59-4371-8664-D4DEFCBE60C9),<br />
	version(1.0),<br />
	helpstring("EOutlookAddin 1.0 Type Library")<br />
]<br />
library EOUTLOOKADDINLib<br />
{<br />
	importlib("stdole32.tlb");<br />
	importlib("stdole2.tlb");<br />
<br />
	[<br />
		uuid(6228A6E9-3C8C-4E6C-8869-77631F65164A),<br />
		helpstring("OutlookAddin Class")<br />
	]<br />
	coclass OutlookAddin<br />
	{<br />
		[default] interface IOutlookAddin;<br />
	};<br />
};

Plus I also have

#import "C:\Program Files\Microsoft Office\Office\mso9.dll" rename_namespace("Office") named_guids <br />
	using namespace Office;<br />
#import "C:\Program Files\Microsoft Office\Office\MSOUTL9.olb" rename_namespace("Outlook"), raw_interfaces_only, named_guids <br />
	using namespace Outlook;

in my StdAfx.h file. I think the moment we use #import the dlls get early binded, isn't it?

I am creating an Outlook addin. So can you show me the way to create a late binded Outlook addin using ATL.

Thanks once again... Smile | :)

---
With best regards,
A Manchester United Fan

The Genius of a true fool is that he can mess up a foolproof plan!

Re: Late binding on ATL COM dll

Stuart Dootson30-Mar-06 0:01

Stuart Dootson

30-Mar-06 0:01

Ah - you mean you want to late-bind to Outlook?

In that case, you're correct - the #imports early-bind. You need to access the relevant object through it's IDispatch interface. Not very much fun...You might find using a wrapper around an IDispatch pointer (like this[^]) makes things easier.

Re: Late binding on ATL COM dll

Jörgen Sigvardsson30-Mar-06 8:56

Jörgen Sigvardsson

30-Mar-06 8:56

Why do you want to bind late? I tought the office components were dual, and can thus be called through the vtable.

Re: Late binding on ATL COM dll

HakunaMatada30-Mar-06 17:17

HakunaMatada

30-Mar-06 17:17

Well, technically, it is said that to support multiple versions of any office application, late or dynamic binding must be used.

Can anyone help?

---
With best regards,
A Manchester United Fan

The Genius of a true fool is that he can mess up a foolproof plan!

Re: Late binding on ATL COM dll

Stephen Hewitt30-Mar-06 17:57

Stephen Hewitt

30-Mar-06 17:57

Can you be more specific? I would just QueryInterface for the interface I need; If it succeeds the component supports it and I can call its methods; If it fails I can't so I try another approach. I can't see the need to "late bind" at the function level using IDispatch when you can negotiate at the interface level using QueryInterface (as is its function).

Steve

Re: Late binding on ATL COM dll

Jörgen Sigvardsson30-Mar-06 20:13

Jörgen Sigvardsson

30-Mar-06 20:13

That's what I was thinking.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.