Re: ListBox Control - C / C++ / MFC Discussion Boards

vijay_aroli16-Jul-07 0:48

16-Jul-07 0:48

Hello all,

I am trying to provide CD/DVD burning facility to my application. I have decided to use Magic CD/DVD burning component. has anyone used this component before? I am currently using the demo of the component. But I am not able to write data onto the CDs. I don't know what mistake I am doing. Can anyone point out what is the mistake that i am doing? here is the code snippet.

CMCDBurner *pObj;//CMCDBurner is a class that gives us tools for writing data on to CDs.<br />
pObj = new CMCDBurner;<br />
<br />
void (__stdcall *pWriteDone)(int , bool , void *);<br />
pWriteDone = &(CMCDBurner::WriteDone);<br />
pObj->InsertFile("\\", "c:\\mcdbc.log"); //Add files to burn.<br />
pObj->Prepare();    //Prepare data for burning.<br />
pObj->Burn(pWriteDone,NULL); //Burn data onto the CD/DVD

The example source that is provided with the Demo is something similar to the one written above. surprisingly, it can write data and my application cannot. so i am sure that i am doing the mistake. Can anyone help??? thanks in advance.

Regards,
Vijay.

God may not give us what we 'want', but he surely gives us what we 'need'.

Re: Can't burn the CD/DVD

David Crow16-Jul-07 3:57

David Crow

16-Jul-07 3:57

So which function call is failing?

"A good athlete is the result of a good and worthy opponent." - David Crow

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Re: Can't burn the CD/DVD

Hamid_RT25-Jul-07 7:57

Hamid_RT

25-Jul-07 7:57

On the codeproject is an article is about convert pdf to text but on that article is source code of Nero maybe it will be helpful for you.

WhiteSky

Re: Can't burn the CD/DVD

toolsche23-Feb-09 22:27

toolsche

23-Feb-09 22:27

Hi,

Did you maybe forget to select the device before?

pObj->SelectDevice(0)

for the first device.

Greets,
toolsche

how to register COM dll

Max++16-Jul-07 0:08

Max++

16-Jul-07 0:08

I follow the COM article of Michael Dunn (about context menu).
and I accomplish this job.

But I don't know that, when I want to bring this DLL file to run in another machine.
how can I do.

Please advise me for this issue.

Re: how to register COM dll

ThatsAlok16-Jul-07 0:22

ThatsAlok

16-Jul-07 0:22

use REGSVR32.EXE, it is situated in SYSTEM32 folder!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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ListBox Control

jasn Smith15-Jul-07 23:54

jasn Smith

15-Jul-07 23:54

Hi, I am currently a mechanical engineering student and have wondered into the realm of C++ programming.

I have created a list that displays lines of a code upon clicking on will perform certain functions. The list is repeated with in a pop-up dialog although the list itself is slightly different.

I am looking for a piece of code that when I select the list in the dialog will enable me to select the same one in the main programme window. I have ID numbers for all the different lines.

I am sorry if this seams a menial problem but even the slightest help would be much appreciated.

jason

Re: ListBox Control

William Engberts16-Jul-07 1:21

William Engberts

16-Jul-07 1:21

Hi Jason,

The easiest way is to pass the address of the listbox in your main program to the dialog. When your selection changes (you could for example use the ON_CLICK event to check this) you can select the same item in the main window using SetSelectionMark: pPassedListCOntrol->SetSelectionMark(IDOfSelection);

William

Re: ListBox Control

Hamid_RT25-Jul-07 7:55

Hamid_RT

25-Jul-07 7:55

Do you want when you select an item of a listbox then you can select same item of other listbox on main dialog?

WhiteSky

SetDlgItemTextW problem

Suneet.0315-Jul-07 23:51

Suneet.03

15-Jul-07 23:51

I am using VC++ and want to display UNICODE String on a Dialog box

Doing it like this :

CString str="Name";
wchar_t buf[255];
strcpy(pc_char1,str);
mbstowcs(buf,pc_char1,str.GetLength()+1);
SetDlgItemTextW(hWnd,IDC_VIEW,buf);

and HWND hWnd is declared in .h File

The problem is even though code compiles fine but nothing gets displayed.

Re: SetDlgItemTextW problem

Sam_c16-Jul-07 0:13

Sam_c

16-Jul-07 0:13

CString str=_T("name");<br />
<br />
	SetDlgItemText(IDC_BTN_RESET,str);

works fine Smile | :)

does that solve it?

Re: SetDlgItemTextW problem

Suneet.0316-Jul-07 0:26

Suneet.03

16-Jul-07 0:26

Thanx

yaa , it has but what is the problem with the above code.

still figuring this out ...

in case of any suggestions , do reply

Re: SetDlgItemTextW problem

toxcct16-Jul-07 0:33

toxcct

16-Jul-07 0:33

sonsam wrote:
CString str=_T("name");

no. this instead :

CString str = L"Name";

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Re: SetDlgItemTextW problem

spsharma16-Jul-07 0:26

spsharma

16-Jul-07 0:26

I guess UNICODE is not defined else

Suneet.03 wrote:
CString str="Name";

will not compile.

Re: SetDlgItemTextW problem

toxcct16-Jul-07 0:34

toxcct

16-Jul-07 0:34

spsharma wrote:
CString str="Name";

will not compile

sure it will, and it does !
but it doesn't work properly if UNICODE and _UNICODE are not defined...

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Re: SetDlgItemTextW problem

spsharma16-Jul-07 1:16

spsharma

16-Jul-07 1:16

In fact it will not compile if UNICODE is defined.

Re: SetDlgItemTextW problem

toxcct16-Jul-07 0:32

toxcct

16-Jul-07 0:32

Suneet.03 wrote:
CString str="Name";
wchar_t buf[255];
strcpy(pc_char1,str);
mbstowcs(buf,pc_char1,str.GetLength()+1);
SetDlgItemTextW(hWnd,IDC_VIEW,buf);

CString, strcpy() are not handling unicode...

use CStringW and wcscpy_s() instead, and of course, when using literals, type them with a prepending L

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Re: SetDlgItemTextW problem [modified]

James R. Twine16-Jul-07 1:36

James R. Twine

16-Jul-07 1:36

   The data is not Unicode until the call to mbstowcs(...) at which point buf (a Unicode/wide character buffer) should contain Unicode data. At that point, the CString and strcpy(...) are no longer involved.

   Most ANSI/MBCS applications are capable of handling Unicode data and vice-versa simpy by using/omitting the L prefix on strings to indicate a wide/narrow string and using the appropriate W/A suffix on the Win32 API. Your application configuration (UNICODE #defined or not) mostly indicates the default character width and version of the Win32 API to link with.

   There is something else going on...

   Peace!

-- modified at 7:49 Monday 16th July, 2007
(Posted before complete...)

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Re: SetDlgItemTextW problem

James R. Twine16-Jul-07 1:47

James R. Twine

16-Jul-07 1:47

   Assuming that pc_char is a suitable char buffer, the conversion to Unicode looks OK from here.

   I would try a few things...

     1: Remove the CString usage - it is not necessary and only adds time and another point for exception handling.

LPCTSTR pcData = "Name";
wchar_t wcaBuf[255];
 
::mbstowcs( wcaBuf, cpData, ::_tcslen( cpData ) );
::SetDlgItemTextW( hWnd, IDC_VIEW , wcaBuf );
<code>// HWND hWndView = ::GetDlgItem( hWnd, IDC_VIEW );
//::SetWindowTextW( hWndView, wcaBuf );</code>

     2: Make sure that the conversion to Unicode was successful by checking the return value from mbstowcs(...)
     3: Check the return value of SetDlgItemTextW(...), and maybe try using SetWindowTextW(...) by first obtaining the HWND of the IDC_VIEW control.
     4: This may be a stupid question, but are you sure that IDC_VIEW is a "text-able" control (edit, button, static/label, drop-list combobox)?

   Peace!

Re: SetDlgItemTextW problem

Mark Salsbery16-Jul-07 6:07

Mark Salsbery

16-Jul-07 6:07

Wow. Alot of discussion and 1-voting on this thread Smile | :)

Isn't this sufficient?

CStringW str=L"Name";
SetDlgItemTextW(hWnd,IDC_VIEW,str);

Mark Salsbery
Microsoft MVP - Visual C++

"Great job team! Head back to base for debriefing and cocktails."

Re: SetDlgItemTextW problem

Mark Salsbery16-Jul-07 6:12

Mark Salsbery

16-Jul-07 6:12

or this

CStringW str("Name");
SetDlgItemTextW(hWnd,IDC_VIEW,str);

Mark Salsbery
Microsoft MVP - Visual C++

"Great job team! Head back to base for debriefing and cocktails."

Re: SetDlgItemTextW problem

James R. Twine16-Jul-07 6:34

James R. Twine

16-Jul-07 6:34

Or this:

SetDlgItemTextW( hWnd, IDC_VIEW, L"Name" );

:P

Peace!

Re: SetDlgItemTextW problem

Mark Salsbery16-Jul-07 6:35

Mark Salsbery

16-Jul-07 6:35

Mark Salsbery
Microsoft MVP - Visual C++

"Great job team! Head back to base for debriefing and cocktails."

Re: SetDlgItemTextW problem

Suneet.0316-Jul-07 18:55

Suneet.03

16-Jul-07 18:55

Thanx guys for such quick replies.

One more thing , is UTF-8 conversion same as UNICODE conversion?

i think its same ...

Change button name of FIle dialog

CodeMak15-Jul-07 23:22

CodeMak

15-Jul-07 23:22

Can anyone tell me how to change the caption of the button in a file dialog to
a cutomized one.....

thanx'n'advance

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