C / C++ / MFC Discussion Boards

David Crow14-Dec-05 3:46

14-Dec-05 3:46

The source code to MFC is provided for this very reason. This is one of the very reasons why I consider it important to learn the Win32 API first before using MFC. I suspect the answer lies in the WM_CTLCOLORBTN message.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: To change the color of Button

ThatsAlok14-Dec-05 18:24

ThatsAlok

14-Dec-05 18:24

srimayank11_codeproject wrote:
Kindly help me out by sending tips and useful codes.

Using Buttons (Windows Explorer and Controls)[^]

"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

Control to Fill Dialog?

LiamD14-Dec-05 3:13

LiamD

14-Dec-05 3:13

Hi,

I am moving from C# to VC++ to test to see if it will meet my timing requirements.

I am not familiar with VC++.

I want to add an ActiveX control that fills a dialog box. So the size of the control will always match the size of the dialog when it is resized. This is easily done in C# .NET using the Anchor property.

How can I do this in VC++? Can it be done by setting properties or do I have to create extra code to achive this?

By the way I am using Visual Studio 2003 to create my code for an MFC application.

Thanks,
Liam

Re: Control to Fill Dialog?

khan++14-Dec-05 3:22

khan++

14-Dec-05 3:22

I think you will need to handle the WM_SIZE message:

void CTheDialog::OnSize(...)<br />
{<br />
CRect rect;<br />
GetClientRect(&rect);<br />
m_Control.MoveWindow(&rect);<br />
}

Now the control will completely occupy the client area of the dialog.

this is this.

Re: Control to Fill Dialog?

LiamD21-Dec-05 22:33

LiamD

21-Dec-05 22:33

Khan++, thanks for the reply this worked for a while now it is failing an assertion:

C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\src\mfc\winocc.cpp

void CWnd::MoveWindow(int x, int y, int nWidth, int nHeight, BOOL bRepaint)
{
ASSERT(::IsWindow(m_hWnd) || (m_pCtrlSite != NULL));
...

Can you explain why this is?

Also I would like to be able to have a fixed offset from a border. Can this be done easily.

Thanks

Re: Control to Fill Dialog?

khan++21-Dec-05 23:10

khan++

21-Dec-05 23:10

You will need to set a boolean variable at class level:
BOOL m_bInitialized;

And initialize it to FALSE in the constructor.
m_bInitialized = FALSE;

And set it to TRUE in the OnInitDialog() function.
m_bInitialized = TRUE;
Also send a resize message explicitly after setting it TRUE:
SendMessage(WM_SIZE,0,0);

Now modify OnSize() like this:

OnSize()<br />
{<br />
CDialog::OnSize().....//whatever.<br />
<br />
if (m_bInitialized == TRUE)<br />
{<br />
Resize the client control here.<br />
}<br />
<br />
}

To set an offset you could:

CRect rect;<br />
...<br />
rect.DeflateRect(10,10,10,10);//This will reduce all the sides of the rect by 10 pixels.

this is this.

256 colors in CListCtrl imagelist icons

Alex Orovetskiy14-Dec-05 3:06

Alex Orovetskiy

14-Dec-05 3:06

For some strange reasons all icons in my CListCtrl decided to loose some colors and turn into dull 256 ones. If I display them using CStatic one by one they still have their 16\32 bits but if I'll attach the same image list to list control they turn into 256 ones on display. I have not owner drawn functions or something like that so it can't be the problem.

--------------------------------
Human stupidity is infinite.

Re: 256 colors in CListCtrl imagelist icons

Alex Orovetskiy14-Dec-05 9:07

Alex Orovetskiy

14-Dec-05 9:07

Am I always asking something hard nobody knows about or something dumb nobody things worth of attention ?

--------------------------------
Human stupidity is infinite.

Strange Problem with \n

RedDragon2k14-Dec-05 2:24

RedDragon2k

14-Dec-05 2:24

Hello,

I have a strange problem: I have an Edit Box which is set to Multiline and WantReturn. But if I want to set the text to the edit box with SetWindowText() it seems the \n in the text is completly ignored.
Does anyone have a clue why ?

With best regards,
Benedikt

Re: Strange Problem with \n

toxcct14-Dec-05 2:25

toxcct

14-Dec-05 2:25

into windows controls, replace \n with \r\n...

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

Re: Strange Problem with \n

Cedric Moonen14-Dec-05 2:26

Cedric Moonen

14-Dec-05 2:26

What do you mean by 'completely ignored' ? You mean that the text following it is not on a new line ?
I think you have to specify \n\r (or \r\n, don't remember exactly) in order to have a new line.

Re: Strange Problem with \n

toxcct14-Dec-05 2:27

toxcct

14-Dec-05 2:27

Cedric Moonen wrote:
\n\r

game over... Poke tongue | ;-P

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

Re: Strange Problem with \n

RedDragon2k14-Dec-05 2:28

RedDragon2k

14-Dec-05 2:28

Yeah thank you.
That was the problem. I was too long working with consoles Wink | ;)

How to POP the CD-ROM Drive Open

Owner drawn14-Dec-05 1:28

Owner drawn

14-Dec-05 1:28

Hi guys,

Can somebody help me in opening and closing the cd-rom drive programatically.

<marquee direction="up" height="30" scrolldelay="1" step="1" scrollamount="1" hspace="0" vspace="0">
--Owner Drawn
--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord

Re: How to POP the CD-ROM Drive Open

khan++14-Dec-05 2:18

khan++

14-Dec-05 2:18

http://www.codeguru.com/Cpp/W-P/system/cd-rom/article.php/c5775/[^]

this is this.

Re: How to POP the CD-ROM Drive Open

Owner drawn14-Dec-05 16:44

Owner drawn

14-Dec-05 16:44

I tried this before, it did not work out. May be I will try it again.

Thanks khan.

How to know the serial number

Russell^'14-Dec-05 0:25

Russell^'

14-Dec-05 0:25

Hi

How to know the serial number of the processor, motherboard, Hd,.... of the PC where is running my application?

I found that I can obtain the HD serial number with GetVolumeInformation(),
but I have problems with the other devices.

Can you help me?

Have a nice code day Wink | ;)

Re: How to know the serial number

kakan14-Dec-05 0:54

kakan

14-Dec-05 0:54

Hello

I thought so too, but it was wrong. The serial number you get from GetVolumeInformation() is the serial number Windows assigns when the drive is formatted. That's not the same as the manufacturers serial no. (Thanks Mr Alok Smile | :)

)

Check this respose to the same question:
http://www.codeproject.com/script/comments/forums.asp?msg=1299791&forumid=1647&mode=all&userid=394282#xx1299774xx[^]

Kakan

Re: How to know the serial number

Russell^'14-Dec-05 3:26

Russell^'

14-Dec-05 3:26

Thanks,
but I have some problems to use the functions Win32_DiskDrive.
I have to define these symbols using 'Cimwin32.mof'.
But, How can I use this strange (for me WTF | :WTF:

) files 'mof'?
And also it needed namespace '\root\cimv2', but the compiler give some errors!

If it is a problem, I'm writing a simple MFC doc\view application.

Thank you

Have a nice code day Wink | ;)

Re: How to know the serial number

ThatsAlok14-Dec-05 18:01

ThatsAlok

14-Dec-05 18:01

_Russell_ wrote:
If it is a problem, I'm writing a simple MFC doc\view application.

this article will help
http://www.codeproject.com/system/UsingWMI.asp[^]

"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

Re: How to know the serial number

Dudi Avramov14-Dec-05 1:03

Dudi Avramov

14-Dec-05 1:03

For cpu-id look for the assembly function cpuid.

Re: How to know the serial number

Russell^'14-Dec-05 3:31

Russell^'

14-Dec-05 3:31

Thank you very much.
It works!

Do you know others assembly functions to know the other devices id (ram, motherboard)?

Have a nice code day Wink | ;)

changing the recordset options

geeta_patil13-Dec-05 23:54

geeta_patil

13-Dec-05 23:54

how to change the readonly option of a record set to upateonly or appendonly..

i am getting an error "recordset readonly"when i go for adding a record thru ODBC api in vc++
if(m_pSet->CanAppend())
{

m_pSet->AddNew();
m_pSet->m_programname="parser";
m_pSet->m_paraname= "main";

if(m_pSet->Update())
TRACE("Row Added OK\n");
else
TRACE("Row Not Added\n");
} // end if CanAppend()
else
MessageBox("Cannot Append");

thanks in advance
Get

Re: changing the recordset options

David Crow14-Dec-05 2:35

David Crow

14-Dec-05 2:35

Check out the third parameter of CRecordset::Open().

"Take only what you need and leave the land as you found it." - Native American Proverb

Disable windows popup

Lior Cohen13-Dec-05 23:53

Lior Cohen

13-Dec-05 23:53

wrote an application that uses twain for scanning an images using
a scanner.
when the scanner is not connected I get the return value and want to
display my own popup but there is another popup from the scanner.

I tried to call :

ShowOwnedPopups(DefWnd(NULL)->m_hWnd,false);

("DefWnd(NULL)->m_hWnd" has my main window handle).

Still the popup is shown. I think that probobly the popup is generated by
the operating system (Windows).

Is anyone can help me on this?

Thanks,
Lior.

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