C / C++ / MFC

Rajesh R Subramanian19-Mar-10 5:10

19-Mar-10 5:10

It's a 'read-only' input now. What about tomorrow, and two years from now? If you'll have to change the code?

It's good practice to release the buffer.

“Follow your bliss.” – Joseph Campbell

Cedric Moonen19-Mar-10 5:15

Cedric Moonen

19-Mar-10 5:15

Rajesh R Subramanian wrote:
It's good practice to release the buffer.

It's even better practice not to call GetBuffer if you don't need to Smile | :)

Cédric Moonen
Software developer

Charting control [v3.0]
OpenGL game tutorial in C++

Rajesh R Subramanian19-Mar-10 5:16

19-Mar-10 5:16

Exactly, which I mentioned clearly in my previous post. Smile | :)

“Follow your bliss.” – Joseph Campbell

Re: EditBox control Problem

Joe Woodbury19-Mar-10 9:28

Joe Woodbury

19-Mar-10 9:28

Rajesh R Subramanian wrote:
you MUST call CString::ReleaseBuffer().

Only if you change the length of the string.

EditBox control Problem

shiv@nand19-Mar-10 3:58

shiv@nand

19-Mar-10 3:58

I have added a EditBox control to a Dialog and i have selected the property(number : true,VC++ 2005). i have validated, only number can be entered.if user enters characters it will not accept,ok it works fine.But when user copy some text and paste in EditBox it is accepting i am getting strange output. please help how to stop copy and paste text or any character in EditBox .

Adam Roderick J19-Mar-10 4:27

Adam Roderick J

19-Mar-10 4:27

For that you need to implement your own EditBox, like the example given ( Create your own controls - the art of subclassing[^])

And inside which you u have overiride the PreTranslateMessage.
eg:-

BOOL MyEditCtrl::PreTranslateMessage(MSG* pMsg) 
{
	// disable mouse and keyboard copy
	switch( pMsg->message )
	{
	case WM_KEYDOWN:
		{
		     switch( pMsg->wParam )
		      {
		                    case 0x56:
			    {
		                      if( GetKeyState(VK_CONTROL) )
		                       return true;
			    }
			  break;
		       }
		}
		break;

	case WM_RBUTTONDOWN:
		{
		     return true;
		}
		break;
	}
	
	return CMyEdit::PreTranslateMessage(pMsg);
}

Величие не Бога может быть недооценена.

Re: EditBox control Problem

Le@rner20-Mar-10 1:38

Le@rner

20-Mar-10 1:38

Check this::
http://www.codeguru.com/cpp/controls/editctrl/maskededitcontrols/article.php/c9771[^]

List Control to Excel

hellogany19-Mar-10 0:59

hellogany

19-Mar-10 0:59

Hi All

I am using Report View in List control with 5 to 6 columns.

I need to transfer thes data from each column to excel sheet.

Any Way to do it ??

Regards
Gany

CPallini19-Mar-10 1:20

CPallini

19-Mar-10 1:20

Have a look at "How To Use MFC to Automate Excel and Fill a Range with an Array".
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.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

mesajflaviu19-Mar-10 1:59

mesajflaviu

19-Mar-10 1:59

Or , you can look over here , I was used this class and work fine !

Rajesh R Subramanian19-Mar-10 2:16

19-Mar-10 2:16

Apart from what was already suggested to you, you could consider exporting the values in .CSV format which Excel also can read and is more portable.

“Follow your bliss.” – Joseph Campbell

Adam Roderick J19-Mar-10 2:48

Adam Roderick J

19-Mar-10 2:48

csv is a more generic format than xls([^]) Smile | :)

Величие не Бога может быть недооценена.

Dialog Window Vertical Scroll Down problem

mesajflaviu19-Mar-10 21:12

mesajflaviu

19-Mar-10 21:12

Adam Roderick J 09 wrote:
csv is a more generic format than xls

Yes , you are perfectly right , is much more handly and simple to export data in .csv format then .xls ! I recommend this solution !

shiv@nand19-Mar-10 0:42

shiv@nand

19-Mar-10 0:42

i am using Vertical Scrollbar to the dialog window, when i scroll down with controls it works fine,but i want to reposition my dialog along with vertical scroll bar dynamically.i will reset the Vertical Scrollbar.but dialog remains unchanged.i want dailog to refresh.
eg:
SCROLLINFO si;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_ALL;
si.nMin = 0;
si.nMax = 200;
si.nPage = 0;
si.nPos = 0;
SetScrollInfo(SB_VERT, &si, TRUE);

Re: Dialog Window Vertical Scroll Down problem

Richard MacCutchan19-Mar-10 1:30

Richard MacCutchan

19-Mar-10 1:30

I think you may need to use InvalidateRect()[^] to tell the dialog that it needs repainting.

txtspeak is the realm of 9 year old children, not developers. Christian Graus

Changing registry root from HKELY_CURRENT_USER to HKEY_LOCAL_MACHINE

maycockt19-Mar-10 0:37

maycockt

19-Mar-10 0:37

Hi,

My application reads data at startup from the registry.
By default it always goes to HKEY_CURRENT_USER in the registry, but I would like it to use HKEY_LOCAL_MACHINE.

I know I can use RegQueryValueEx and specify HKLM, but I was wondering if there is a way to set the root to be HKLM instead of HKEY_CURRENT_USER, and therefore when I call

SetRegistryKey(_T("Company\\App"));

the root will be HKLM instead of HKEY_CURRENT_USER.

TIA

Tony

Re: Changing registry root from HKELY_CURRENT_USER to HKEY_LOCAL_MACHINE

«_Superman_»19-Mar-10 0:54

«_Superman_»

19-Mar-10 0:54

From within the CWinApp derived class change the value of the variable m_pszRegistryKey.
Allocate the string on the heap because the CWinApp destructor calls free on this variable.

The recommended way of doing this is -
m_pszRegistryKey = _tcsdup(_T("HKEY_LOCAL_MACHINE\\Software\\Company\\App"));

You will need administrative privileges to make this happen.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Re: Changing registry root from HKELY_CURRENT_USER to HKEY_LOCAL_MACHINE

maycockt19-Mar-10 1:12

maycockt

19-Mar-10 1:12

Thanks for that,

The problem I am going to encounter then is that most users of my application will not have administrative privileges and therefore won't get that level of access.
I'll have to do a code rejig and use the RegQueryValueEx functionality instead.

Thanks

Tony

Re: Changing registry root from HKELY_CURRENT_USER to HKEY_LOCAL_MACHINE

«_Superman_»19-Mar-10 1:20

«_Superman_»

19-Mar-10 1:20

If you want to write to HKEY_LOCAL_MACHINE you will anyway need administrator privileges.
If not it will be written to a key inside HKEY_CURRENT_USER.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Remote Debugging with VS2008.

Iain Clarke, Warrior Programmer18-Mar-10 23:06

Iain Clarke, Warrior Programmer

18-Mar-10 23:06

Forgive me if I'm being thick...

In VC6, I could use the Debugger Remote Connection, compile to a network share, and then when I press F5, it would run my program on the remote computer, and attach msvcmon to it. I could make break points, and all was good and simple. The only issue was to make sure the clocks agreed.

I'm trying to do the same in VS2008, and failing...

I can find how tos on attaching to a remote process, but then I can't put a breakpoint in my code.

If anyone can give me pointers, I'm sure I'm missing out on one obvious step.

Thanks,

Iain.

I have now moved to Sweden for love (awwww).

Rajesh R Subramanian18-Mar-10 23:14

18-Mar-10 23:14

What sort of issues are you having? The breakpoints are not hit?

When it's simple, I usually compile the binaries to the network drive directly and like you said, if I press F5, it loads it from the network and breakpoints will be hit.

If it's something more complex like an ISAPI DLL that would be loaded by IIS on a remote server, then I attach my debugger to the remote process (inetinfo.exe on the server in this case) and when I load the web page, my break points will be hit (of course given I've copied the DLL to the remote machine).

“Follow your bliss.” – Joseph Campbell

Iain Clarke, Warrior Programmer

Iain Clarke, Warrior Programmer18-Mar-10 23:29

18-Mar-10 23:29

Rajesh R Subramanian wrote:
What sort of issues are you having?

I can;t find any way of pressing f5 on one machine, and have the program run on another machine (one with msvcmon.exe running on it).

If I run it manually on the remote machine, and attach from my local machine, the any attempt to put a breakpoint in my code gets a white circle with a warning. And that's on code I breakpointed locally not long before.

As I said, I'm probably just missing one setting somewhere, and will feel silly afterwards!

Iain.

I have now moved to Sweden for love (awwww).

KarstenK18-Mar-10 23:57

KarstenK

18-Mar-10 23:57

in the project settings -> Debugging -> Remote Debugger (Listbox above the list options)

Press F1 for help or google it.
Greetings from Germany