C / C++ / MFC

11-Dec-03 15:10

I am wondering, since u can pass a style LBS_SORT to the listbox when Initalized. But is there a flag that I can pass to SetDlgItemMessage(...) to sort the LB when I push a button ??? I dont want to have to write my own Sorting function to sort strings Alphabetically.

Thanks

l a u r e n11-Dec-03 20:32

l a u r e n

11-Dec-03 20:32

if u set the style it will insert new items in a sorted order
so why would u want to sort it urself?

"there is no spoon"
biz stuff about me

Big Art12-Dec-03 7:56

Big Art

12-Dec-03 7:56

I think what you want is to change the sorting style of the listbox at runtime. Try SetWindowLong(..) in your button handler.

Art

Member 45722512-Dec-03 8:32

12-Dec-03 8:32

Exactly thats what I was trying to do at runtime sort the items in the LB.I will try SetWindowsLong(...)

Member 45722512-Dec-03 8:43

12-Dec-03 8:43

You can not use SetWindowLong(...)for a list box, causes the program to freeze.

Big Art12-Dec-03 12:48

Big Art

12-Dec-03 12:48

Don't know why you are getting that.

Here is my code:
----------------------------------
DWORD dwStyle = m_lb1.GetStyle();
dwStyle |= LBS_SORT;
::SetWindowLong(m_lb1.GetSafeHwnd(),GWL_STYLE,dwStyle);
-----------------------------------

A check with spy++ clearly shows the listbox style has changed from no sort to sort. However the sorting operation doesn't occur. Don't know why. Sorry. It doesn't freeze the app though.

Art

Big Art12-Dec-03 13:02

Big Art

12-Dec-03 13:02

Read this:

http://www.codeproject.com/combobox/recreatelistbox.asp

Art

Member 45722513-Dec-03 6:23

13-Dec-03 6:23

Mine does not work either this is my code

-------------------------------------------------------
int x = SetWindowLong(dhwnd,GWL_STYLE,GetWindowLong(dhwnd,GWL_STYLE)|LBS_SORT);
SendDlgItemMessage(dhwnd,IDC_LIST1,LB_RESETCONTENT,0,0);
for(int i=0; i<6; ++i)
SendDlgItemMessage(dhwnd,IDC_LIST1,LB_ADDSTRING,0,(LPARAM)table[i].list);
SendDlgItemMessage(dhwnd,IDC_LIST1,LB_SETCURSEL,0,0);
SetDlgItemText(dhwnd,IDC_EDIT1,table[0].list);
-------------------------------------------------------------------------
I dont think I am getting the handle to the listbox

Member 45722513-Dec-03 6:36

Convert VC++ project to Borland free compiler

13-Dec-03 6:36

I have not explained this very. I created a listbox using the resource editor. The problem is I cant set the style to a LB because the resource editor set all the flags. But I assume u can change the style using SetWindowLong(...) but nothing happens. Is there a way I can get a handle to the listbox. This is win32 and not MFC.

alex.barylski11-Dec-03 15:09

alex.barylski

11-Dec-03 15:09

Is there a util that will do this? Does the Borland free compiler even possibkly know how to read them?

I want to take a project I have and convert it to compile and link using borland's free compiler Smile | :)

It's an SDK, so I'm not concerned w/ MFC

Cheers Smile | :)

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

Re: Convert VC++ project to Borland free compiler

Joe Woodbury11-Dec-03 17:32

Joe Woodbury

11-Dec-03 17:32

To my knowledge none of the Borland C++ programs understand visual studio projected/solution files. However, Visual Studio 6.0 has the option to create a make file, which you could modify to work with the Borland compiler.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Who knows how to get character matrix in win and dos! Please help!

twing11-Dec-03 14:56

twing

11-Dec-03 14:56

do u know how to get character matrix in win and dos?

e.g:
1 character matrix is similar to that:

0000x0000
0000x0000
0000x0000
0000x0000
0000x0000

Thank you!

Hello World!

Re: Who knows how to get character matrix in win and dos! Please help!

Anthony_Yio11-Dec-03 22:25

Anthony_Yio

11-Dec-03 22:25

char buffer[20];
int iYourNumber = 0;
sprintf( buffer, "%x", s );

Convert it to HEX?

Sonork 100.41263:Anthony_Yio

In VC6.0, how to change Release to Debug?

zhaopzhi11-Dec-03 14:05

zhaopzhi

11-Dec-03 14:05

In VC6.0,how to change a project from Release to Debug for debuging it?
Thank you very much first!

Rap off for you,for me,for our human.

Re: In VC6.0, how to change Release to Debug?

Michael Dunn11-Dec-03 14:45

Michael Dunn

11-Dec-03 14:45

Look on the Build toolbar, there's a combo box that says "Win32 Release". Change that to "Win32 Debug"

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
There is a saying in statistics that a million monkeys pounding on typewriters would eventually create a work of Shakespeare. Thanks to the Internet, we now know that this is not true.

Re: In VC6.0, how to change Release to Debug?

Shay Harel12-Dec-03 6:51

Shay Harel

12-Dec-03 6:51

Right click on the top and make sure that you select:"Build" and then change it in the combo box

Re: In VC6.0, how to change Release to Debug?

Anthony_Yio11-Dec-03 22:19

Anthony_Yio

11-Dec-03 22:19

Or if you want to debug in release mode, in your linker option.
Project Setting - Link - check the Generate Debug Info

and

Add #define _DEBUG into your source code.

Sonork 100.41263:Anthony_Yio

My DllMain is not getting invoked.

Matthew Busche11-Dec-03 12:02

Matthew Busche

11-Dec-03 12:02

I'm trying to use DllMain() to take care of some library/thread initialization and cleanup stuff, but no matter what I try I cannot get DllMain invoked for any of the four events for which it is supposed to be getting invoked! (I.e., process attach, thread attach, thread detach, process detach.)

I found the following sentence in the MSDN description of DllMain():

"DllMain is a placeholder for the library-defined function name. You must specify the actual name you use when you build your DLL. For more information, see the documentation included with your development tools."

Is there some Dev Studio project setting I should be making to identify the name of my library entry point function?

Another tidbit of information: I'm using simple load-time linking for my DLL. The MSDN DllMain description makes reference to LoadLibrary and FreeLibrary (functions you use for run-time dynamic linking). I sould be interested in hearing confirmation that DllMain IS compatible with simple load-time dynamic linking.

Thanks much,
Matt

Peter Molnar11-Dec-03 13:36

Peter Molnar

11-Dec-03 13:36

Matthew,

further to your (previous) question:

DllMain of your *.dll library gets called on
1.program startup, if your user staticly linked to the *.lib library of your *.dll project when compiling his app. (also called load time or explicit linking)
2.your user calling LoadLibrary, FreeLibrary from his code (also called runtime or implicit linking)

In case 1./ the user of your library has to get from you a *.lib and a *.h file of your library in order to compile his project, and of course your *.dll to run with your *.dll attached.

In case 2./ the user of your library has to get from you an *.h file of your library (i.e. function prototypes) to compile his code (by calling LoadLibrary, GetProcAddress and FreeLibrary) and your *.dll to run the library functions.

Peter Molnar

Matthew Busche11-Dec-03 14:07

Matthew Busche

11-Dec-03 14:07

Peter,

Thanks for your confirmation that this at least should work. So why then is my DllMain not getting invoked. Here's my current inplementation:

#include "MyHeader.h"
#include "windows.h"

BOOL DllMain(HINSTANCE , DWORD pReason, LPVOID ) {
    try {
        printf("I'M HERE!\n");
        int *x = NULL;
        *x = 20;
        switch (pReason) {
            case DLL_PROCESS_ATTACH:
                MyProcessAttach();
                MyThreadAttach();
                break;
            case DLL_THREAD_ATTACH:
                MyThreadAttach();
                break;
            case DLL_THREAD_DETACH:
                MyThreadDetach();
                break;
            case DLL_PROCESS_DETACH:
                MyThreadDetach();
                MyProcessDetach();
                break;
            default:
                break;
        }
    }
    catch(std::exception& x) {
        std::cerr << x.what() << std::endl;
        return FALSE;
    }
    return FALSE;
}

where all the stuff in bold is just some garbage I've added trying to get it to print something, or crash or generate some failed load situation to show me that the function is getting called. It would certainly seem this function is never getting invoked. What the heck is going on?

Again, do I need some project setting to identify this as an entry point function for the library?

Matt

Peter Molnar11-Dec-03 14:40

Peter Molnar

11-Dec-03 14:40

I have created a small project which contains 4 lines of code:

#include <windows.h>
BOOL DllMain(HINSTANCE , DWORD , LPVOID ) 
{   
	::MessageBox(NULL,"test","Caption",MB_OK);      
	return TRUE;
}

and call it

HINSTANCE hInstance = LoadLibrary("pathto.dll");

works just fine.
Try the same. What is hInstance when you debug?

Peter Molnar

SUCCESS!!!

Matthew Busche12-Dec-03 18:08

Matthew Busche

12-Dec-03 18:08

Much thanks to Peter Molnar for mailing me a completely trivial DevStudio project containing a DllMain() that got properly invoked. What I was missing (and what I had never seen documented) was the APIENTRY declaration for the DLL entry point function. The DllMain must be declared like this:

BOOL APIENTRY DllMain(HINSTANCE , DWORD , LPVOID )

Once those 8 pesky characters were added, it worked great.

Also, for those who care, this works independently of the application type (i.e., works for both console apps and windows apps) and (as Peter said in an earlier message on this thread) works independently of how the library is loaded. (I.e., you can use either load-time dynamic linking or run-time dynamic linking.)

Matt