C / C++ / MFC

Re: How can let myself's picture cover other control?

11-Jan-08 3:21

From where are you doing this drawing? Can you edit control or button be moved to another location? Can the drawing be done elsewhere on the dialog? Rather than draw directly on the dialog, can you draw on a static control or a button instead?

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mark Salsbery11-Jan-08 8:34

Mark Salsbery

11-Jan-08 8:34

Control windows on the dialog are higher in the z-order than the
dialog window itself so they get painted later.

You need a window higher in the z-order than the control you
want to paint over (see DavidCrow's reply).

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: How can let myself's picture cover other control?

zengkun10011-Jan-08 19:27

zengkun100

11-Jan-08 19:27

Maybe you should write drawing code in the control's OnPaint function or OnEraseBkgnd or somewhere like that Smile | :)

A Chinese VC++ programmer

BCGPro ShowControlBar doesn't work when called in OnCreate [modified]

followait10-Jan-08 19:39

followait

10-Jan-08 19:39

I have three bcg control bars in my CBCGPFrameWnd derived class CMyBCGPFrameWnd:

CBCGPStatusBar      m_wndStatusBar;
CBCGPToolBar        m_wndToolBar;
CBCGPTabbedControlBar   m_wndTabbedCb;

In CMyBCGPFrameWnd::OnCreate, I create the three bars, and want to hide them using:

m_wndTabbedCb.ShowControlBar(bShow,TRUE,FALSE);
m_wndToolBar.ShowControlBar(bShow,TRUE,FALSE);
m_wndStatusBar.ShowControlBar(bShow,TRUE,FALSE);

But only m_wndTabbedCb hides.
I made a test by toggling show/hide state in a button command, all is ok.
And if not use bcg, MFC's ShowControlBar is also ok.
How to deal with it?
Thanks.

modified on Friday, January 11, 2008 2:07:29 AM

cout and printf

CodingLover10-Jan-08 19:26

CodingLover

10-Jan-08 19:26

Hi all,

Here is the way I handle error codes in my applications using "printf" c-standards.

printf("Error in recording data. GetLastError reports %d\n", GetLastError());

I want to do this formating using standard C++, mean using "cout" function. How can I do that formating.

I appreciate your help all the time...
Eranga Smile | :)

Maxwell Chen10-Jan-08 19:33

10-Jan-08 19:33

#include <iostream>
std::cout << "Error in ... reports " << GetLastError() << std::endl;

Maxwell Chen

CodingLover10-Jan-08 20:34

CodingLover

10-Jan-08 20:34

Thanks a lot.

Oki, here is quite similar problem. I want to write some data to a file. First I include header to a file.

outFile << "File Name\tGroup ID\tDate Created\tDate Last Access\tFile Size\tNo. of Messages\n\n";

Then write there relevant values to it as follows.

outFile << strName << "\t" << strID << "\t" << osCre.str() << "\t" << osAcc.str() << "\t" << iSize << "\t" << mesCount << endl;

But after writing it both headings and values are not aligned with each other correctly. How can I format that.

I appreciate your help all the time...
Eranga Smile | :)

CPallini10-Jan-08 21:46

CPallini

10-Jan-08 21:46

I think the wonderful world of manipulators [^] is waiting for you.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

[my articles]

Maxwell Chen10-Jan-08 21:48

10-Jan-08 21:48

There was a std::setpic in the older version MSDN sample code. But it is removed today.

Maxwell Chen

CPallini10-Jan-08 22:02

CPallini

10-Jan-08 22:02

Maxwell Chen wrote:
std::setpic

Never heard about (but I'm not that stream classes guru, of course).
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

[my articles]

Maxwell Chen10-Jan-08 22:13

10-Jan-08 22:13

Never mind.
I am a newbie to iostream. Poke tongue | ;-P

Maxwell Chen

David Crow11-Jan-08 3:30

11-Jan-08 3:30

The \t is what's messing you up. Use setiosflags(ios::left) and setw() in the stream instead.

c++ and VC++

Amrit Alok10-Jan-08 19:22

10-Jan-08 19:22

I am new to programming ... I am using Windows Vista 32 bit at home Laptop.

I need some help to start the Programming especially using VC++ because I am interested in embedded development.

Please suggest me where to start from...

Maxwell Chen10-Jan-08 19:32

10-Jan-08 19:32

You need a copy of Windows Embedded CE 6.0 Platform Builder.

Maxwell Chen

Amrit Alok10-Jan-08 19:44

10-Jan-08 19:44

thanks, but how about first starting with some basic operations such finding the processor speed or may be handling the disk space???

Maxwell Chen10-Jan-08 20:17

10-Jan-08 20:17

You said you are going to do embedded programming. You have to decide what target platform you are doing first! If you are not doing Windows CE or Windows Mobile, you have to use another compiler.

Maxwell Chen

Amrit Alok10-Jan-08 20:40

10-Jan-08 20:40

As I told that I am a complete beginner, so I will have to understand the processor architecture first ???

Maxwell Chen10-Jan-08 21:32

10-Jan-08 21:32

amr.alok wrote:
am a complete beginner

There is some difference between beginning from Visual C++ and beginning from WinCE Platform Builder. The target platforms and the compiler environments are different. So you have to decide what you really plan to do for your career.

1) Visual C++ 2005 or 2008 can do some smart device applications (some types of application for embedded systems), but not that almighty comparing with WinCE Platform Builder.

2) Embedded Visual C++ can do more things than Visual C++ 2005/2008, but it requires the SDK export from WinCE Platform Builder.

3) WinCE Platform Builder does not have a too much good editor, but it can do all the embedded programming for WinCE.

But yes they both are in C/C++. Therefore starting from Visual C++ to learn basic C/C++ syntax is a choice for you.

amr.alok wrote:
processor architecture

Not necessary! You have to learn the language syntax first. And then learn the endianness of byte orders of each types of processors (x86, x64, IA64, ARM, 8051, ...). And then maybe necessary to know the architecture of a processor; or maybe not when not necessary. It would be many years later.

Maxwell Chen

David Crow11-Jan-08 3:33

11-Jan-08 3:33

Maxwell Chen wrote:
So you have to decide what you really plan to do for your career.

What does his career have to do with his embedded project? Confused | :confused:

Maxwell Chen11-Jan-08 4:04

11-Jan-08 4:04

DavidCrow wrote:
What does his career have to do with his embedded project?

OK. Maybe just to be his interest, to make some embedded programs, to enrich his own PDA, GPS, smartphone ... Big Grin | :-D

Maxwell Chen

Hamid_RT10-Jan-08 21:16

Hamid_RT

10-Jan-08 21:16

I think yes he wants to learning programming and then other things. Wink | ;)

David Crow11-Jan-08 3:36

11-Jan-08 3:36

amr.alok wrote:
...how about first starting with some basic operations such finding the processor speed or may be handling the disk space???

For the latter, there's GetDiskFreeSpaceEx(). For the former, see these:

http://www.codeproject.com/KB/system/Processor_Speed.aspx[^]

http://www.codeproject.com/KB/system/camel.aspx[^]

Amrit Alok14-Jan-08 1:16

14-Jan-08 1:16

Thanks for the links...

Now can embedded programming help in providing network security??