C / C++ / MFC Discussion Boards

VCProgrammer23-Jan-09 19:44

23-Jan-09 19:44

Hi all,

I have a list control in which there can be very large number of items and there can be very few items also.....

Property of my list is that it is almost sorted.....

So, i wanted to know that which sorting alogorithm will best suit this situation.....

Thanks in advance

Re: Best suited sorting algorithm

VCsamir23-Jan-09 20:05

VCsamir

23-Jan-09 20:05

hi,
u Want to sort list on what basis? Is it a image list??

Samir

Re: Best suited sorting algorithm

VCProgrammer23-Jan-09 20:35

VCProgrammer

23-Jan-09 20:35

no it just contain integers...

Re: Best suited sorting algorithm

Stuart Dootson23-Jan-09 21:06

Stuart Dootson

23-Jan-09 21:06

VCProgrammer wrote:
So, i wanted to know that which sorting alogorithm will best suit this situation

The one you don't have to write yourself - the sort algorithm[^] in the C++ standard library is pretty much good enough for most cases.

BTW - can you quantify your "very large number of items"? My very old and slow iBook will sort a million (random) integers in 200 milliseconds using std::sort - that's reasonably quick...

menubar custom draw in MFC (Very Urgent...............)

AnithaSubramani23-Jan-09 18:24

AnithaSubramani

23-Jan-09 18:24

Hi!

I want to custom-draw menubar in MFC dialog based application.I need the sample code.

Pls help me..............

Thanks & Regards,

Anitha

<div class="ForumMod">modified on Saturday, January 24, 2009 12:51 AM</div>

Re: menubar custom draw in MFC (Very Urgent...............)

VCsamir23-Jan-09 20:18

VCsamir

23-Jan-09 20:18

Check if this link help u Smile | :)

http://edndoc.esri.com/arcobjects/9.0/Samples/Application_Framework/Custom_MultiItem_and_Menu/CustomMultiItemAndMenu.htm

Re: menubar custom draw in MFC (Very Urgent...............)

Stuart Dootson23-Jan-09 21:08

Stuart Dootson

23-Jan-09 21:08

Try this[^]

Re: menubar custom draw in MFC (Very Urgent...............)

AnithaSubramani23-Jan-09 21:31

AnithaSubramani

23-Jan-09 21:31

I need in Dialog based application not in SDI.

Re: menubar custom draw in MFC (Very Urgent...............)

Stuart Dootson23-Jan-09 22:47

Stuart Dootson

23-Jan-09 22:47

Why not rejig your dialog based app into a non-document SDI app which uses a form view? That gives you the control layout capabilities of a dialog, together with the menu, toolbar and command routing capabilities of SDI.

This page[^] gives good advice, including tips for converting a dialog based app to SDI.

TAB and Escape keys are not working in windows created using CreateDialog

vinvino200123-Jan-09 18:01

vinvino2001

23-Jan-09 18:01

Hi,

I have created modeless dialogs in MFC using CreateDialog() and dialog is successfully shown.

void ParentDialog::OnButton1() 
{
	// TODO: Add your control notification handler code here
	HWND retcode = CreateDialogParam(NULL, 
		MAKEINTRESOURCE(IDD_DIALOG2),
		NULL, 
		MainWndProc);
}

In message handler, added the following

int APIENTRY MainWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) 
{ 
	
	switch(uMsg)
	{
	case WM_INITDIALOG: 
		ShowWindow(hwnd, SW_SHOW);
		UpdateWindow(hwnd);
		return TRUE;
		break; 
		
	case WM_COMMAND: 
		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) 
		{ 
			DestroyWindow(hwnd);
			return TRUE;
		} 
		break; 
	} 
	
	return FALSE; 
}

After dialogs are displayed, when I am pressing hot keys or escape from the child dialogs, it is not working.

Please help me.
Thanks in advance.
Vinoth

using javascript in BHO

Haim Nachum23-Jan-09 14:05

Haim Nachum

23-Jan-09 14:05

Hi. ive created a simple BHO(browser helper object) with ATL.
im handling the ondocumentcomplete event and i want to capture the mouse position in the document , i know that there is a really good javascript functions that do that, but the question is can i use in some way javascript code in my ATL project?

Re: using javascript in BHO

«_Superman_»23-Jan-09 18:03

«_Superman_»

23-Jan-09 18:03

The GetCursorPos API can do that for you.

«_Superman_»

Re: using javascript in BHO

Haim Nachum24-Jan-09 0:52

Haim Nachum

24-Jan-09 0:52

getting the mouse position is only part of what i want to do, so i need to know can i use javascript or must i use c++ code to achive javascript functionality.

Re: using javascript in BHO

«_Superman_»24-Jan-09 1:45

«_Superman_»

24-Jan-09 1:45

Microsoft does have a script engine that you can use to run VBScript and JScript from C++, but that is an overkill.

I'm sure all that javascript does can be done in C/C++.
And that would be the way to go on Performance, Size etc.

«_Superman_»

Getting Linker Errors when I compile a CLR Library which uses Native C++ Library

Member 570390523-Jan-09 12:33

Member 5703905

23-Jan-09 12:33

I have a CLR Application where I am trying to write a .NET wrapper over calls made to native C++ Library. I am using VS 2008 but libraries are compiled in VS2003 or 2005. I am getting some linker errors on linking. Strangely, every error is 1 of these 3 unresolved external symbol ones -

1. std::locale::facet::_Register
2. std::ctype&::_Getcat
3. std::strstream::strstream

Details of the errors -

error LNK2001: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall std::strstream::~strstream(void)" (__imp_??1strstream@std@@UAE@XZ)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: void __thiscall std::locale::facet::_Register(void)" (__imp_?_Register@facet@locale@std@@QAEXXZ)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: void __thiscall std::locale::facet::_Register(void)" (__imp_?_Register@facet@locale@std@@QAEXXZ)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: static unsigned int __cdecl std::ctype<char>::_Getcat(class std::locale::facet const * *)" (__imp_?_Getcat@?$ctype@D@std@@SAIPAPBVfacet@locale@2@@Z)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: static unsigned int __cdecl std::ctype<char>::_Getcat(class std::locale::facet const * *)" (__imp_?_Getcat@?$ctype@D@std@@SAIPAPBVfacet@locale@2@@Z)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: static unsigned int __cdecl std::ctype<unsigned short>::_Getcat(class std::locale::facet const * *)" (__imp_?_Getcat@?$ctype@G@std@@SAIPAPBVfacet@locale@2@@Z)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: static unsigned int __cdecl std::ctype<unsigned short>::_Getcat(class std::locale::facet const * *)" (__imp_?_Getcat@?$ctype@G@std@@SAIPAPBVfacet@locale@2@@Z)
error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall std::strstream::strstream(char *,int,int)" (__imp_??0strstream@std@@QAE@PADHH@Z)

Thanks a lot for the help.
Amit

Re: Getting Linker Errors when I compile a CLR Library which uses Native C++ Library

N a v a n e e t h23-Jan-09 17:06

N a v a n e e t h

23-Jan-09 17:06

AFAIK, mixing different runtime models will work some time, but not supported. I am not sure though.

Navaneeth

How to use google | Ask smart questions

Re: Getting Linker Errors when I compile a CLR Library which uses Native C++ Library

Stuart Dootson23-Jan-09 21:17

Stuart Dootson

23-Jan-09 21:17

Member 5703905 wrote:
I am using VS 2008 but libraries are compiled in VS2003 or 2005

Make sure you know which one it is, (VS2003 or 2005), 'cause you're going to have to link to its C++ runtime library (MSVCP71 - VS2003 - or MSVCP80 - VS2005). Even then, it might not work, because of mismatches in the C run-time library versions.

Catching messages from remote control [modified]

mk_423-Jan-09 8:08

mk_4

23-Jan-09 8:08

Hi,
I would like to write an application which would let me use remote control from my TV card to turn on some apps like music player. The receiver of signals from my rc is connected to TV card. There is also an application which receives the messages when I press some button on remote control. The problem is that, I can't catch all messages using the WH_GETMESSAGE hook and WM_USER parameter for MSG structure. I mean, when I press buttons which are responsible for turning on TV and radio, my application receives a message, but if I press another button like "1" or "Mute", nothing happens. I also have tried using WM_COMMAND and it works, but only if the TV is turned on. And here is my question: Is this possible to catch somehow messages connected with another buttons when my TV is turned off?

Thanks in advance and sorry for my english.

modified on Friday, January 23, 2009 2:43 PM

Re: Catching messages from remote control

Code-o-mat23-Jan-09 9:26

Code-o-mat

23-Jan-09 9:26

First of all, tell me if i am right or wrong: You made a program which hooks into the other application -probably one you got with your TV card- to catch messages (and perform your bidding) it sends itself when the remote control is invoked. If so, you could try using Spy++ to see what messages are being sent when certain buttons are pressed for starters. But it can also be that that certain program will only respond to certain remote-keyhits when an application it knows about is running and responds to these, that's why your commands work only when you TV program is running. What is that proggie you are hooking into?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Catching messages from remote control [modified]

mk_423-Jan-09 10:15

mk_4

23-Jan-09 10:15

hmm.. the program, I have made, sets a global hook (so I used DLL) which "probably" catch all messages, before any other application receive them, and when the message has a WM_USER parameter then on the screen is displayed a Message Box. If I don't press "OK" button, the message won't be passed to it's destination app. I'm new to the C++ and WinApi, so this is how I think it works due to things that have happend when I've launched it and pressed some button on remote control. And it looks to my that, when I press other buttons, than TV and FM, messages aren't generated by OS, drivers or some other programes connected with my TV card. And the program, I'am hooking into is WinFast Wizard. Probably there is some other application that receives all signals from my remote control, but if so, then I don't know how it's called like.

And about Spy++ (I've had no idea that something like this exists, so thank you for advice)....
I'am using DevC++, and as I know from the msdn site the spy++ is a part of Visual C++. I've got somewhere 2008 Express Edition but is Spy++ in there too?. I didn't see any information about it, that's why I ask.

modified on Friday, January 23, 2009 4:24 PM

Re: Catching messages from remote control

Code-o-mat23-Jan-09 10:26

Code-o-mat

23-Jan-09 10:26

Well, if controlling applications is all you want to do then -if i were you- i'd look for some already written application to achieve it, like this[^], there are usually tonns of apps like that to allow you control. No use reinventing the wheel.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Catching messages from remote control

mk_423-Jan-09 11:02

mk_4

23-Jan-09 11:02

Thanks, this application does almost exactly that what I wanted my app for, but anyway I want to write my own program. If I make it, I will have a satisfaction, useful program which looks and behave as I want to, and I will learn something new. That is why I didn't look for already written apps. So, I will keep trying. One more time thank you for help, I'm sure that spy++ will be helpful (if I get it somehow) and in case of failure I can use the application you pointed to.

Folding doxygen comments with Eclipse CDT?

crewchill23-Jan-09 7:14

crewchill

23-Jan-09 7:14

Hi.

I've been googling this for a while now, and I still find no good answer for it.

Before you throw RTFM at me, I'm still searching for the answer.
But if you've been through this before, any useful links are appreciated.

This would fold nicely:

// xyz
// @param x
// @param y

This would fold nicely also:

/*
 * xyz
 * @param x
 * @param y
 */

This wouldn't fold:

/// xyz
/// @param x
/// @param y

This wouldn't fold either:

// xyz
// @param x
// @param y

It won't kill me to see these, but as the code grows it's getting harder and harder to see the function names.

Re: Folding doxygen comments with Eclipse CDT?

malk0lm23-Jan-09 12:19

malk0lm

23-Jan-09 12:19

Doxygen provides several ways to mark what it should process. Have you tried the alternatives like:

/*!
...
*/

or

/////////////////////////////////////////////
/// ...
/////////////////////////////////////////////

or

//! ...
//! ...

Re: Folding doxygen comments with Eclipse CDT?

crewchill23-Jan-09 18:23

crewchill

23-Jan-09 18:23

Thanks for your reply!

The slash star and slash slash exclamation is out of the question due to company's coding standard.

What I don't understand is why the triple slashes when it's tabbed inside it won't fold? I don't think the Eclipse CDT team haven't noticed that format already...

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