C / C++ / MFC

CTreeCtrl strange behaviour

23-Sep-08 5:47

MPTP wrote:
But am/pm is not coming.

Because you've not specified such. Use a 't' for that.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

bhanu_850923-Sep-08 2:31

bhanu_8509

23-Sep-08 2:31

Dear All,

I am experiencing a strange problem using CTreeCtrl. I have a dialog in which I have changed the background colour to black using OnCtlColor method.

After that, I have placed a CTreeCtrl and set the properties "HasLines", "HasButtons" and "LinesAtRoot" to true. When I run the program to show the dialog I got Debug Assertion error and when I debug it shows error on the DoDataExhange method and sometimes on the dlgdata.cpp.

But when I change the properties to false there is no debug assertion error. Also, if I didn't change the background using the OnCtlColor and set the properties "HasLines", "HasButtons" and "LinesAtRoot" to true it works fine.

I am very confused with this behaviour. I need background color black for the dialog and want the properties to set TRUE. Please help me to sort out this issue.

Many thanks in advance.

Code snippet for OnCtlColor

HBRUSH MuxInfo::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	
	UpdateData(TRUE);

	if (pWnd->GetDlgCtrlID() )//== IDC_ALLMSG) //|| pWnd->GetDlgCtrlID() == IDC_MESSAGE)
	{
		// either the listbox or edit box has input focus

		if (m_bFirstTime == TRUE) // First time through function... set up default color
			pDC->SetTextColor(RGB(0,0,0));
		else
		{
			pDC->SetTextColor(RGB(GetRValue(m_crColor),GetGValue(m_crColor),
				GetBValue(m_crColor)));
			pDC->SetBkColor(RGB(255 - GetRValue(m_crColor),
				255 - GetGValue(m_crColor), 255 - GetBValue(m_crColor)));
		}
	}

	return m_brush; // Paint the dialog black!!
	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

Re: CTreeCtrl strange behaviour

SandipG 23-Sep-08 2:41

SandipG

23-Sep-08 2:41

you should put the conditions accordingly on nCtlColor
valid values are :

CTLCOLOR_BTN Button control
CTLCOLOR_DLG Dialog box
CTLCOLOR_EDIT Edit control
CTLCOLOR_LISTBOX List-box control
CTLCOLOR_MSGBOX Message box
CTLCOLOR_SCROLLBAR Scroll-bar control
CTLCOLOR_STATIC Static control

use CTreeCtrl member function SetBkColor(..) to set the background color of tree control.
[added]
one more correction after the conditions return CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
for default case which you don't wish to handle.

bhanu_8509 wrote:
return m_brush; // Paint the dialog black!!

// TODO: Return a different brush if the default is not desired
return hbr;

consecutive returns does not make any sense.

[/added]

Regards,
Sandip.

Problem in getting hash values [modified]

Aryan S23-Sep-08 2:22

Aryan S

23-Sep-08 2:22

I want to get hash values from two string. I am using the following code snippet for that purpose

locale loc("English_US");
LONG lValue1 = use_facet< collate<_TCHAR> >(loc).hash(&lpszString1, &lpszString1[_tcslen(lpszString1) - 1]);
LONG lValue2 = use_facet< collate<_TCHAR> >(loc).hash(&lpszString2, &lpszString2[_tcslen(lpszString2) - 1]);

This is working fine. But in a few XP system this piece of code is getting hanged. Do you have any clue what could be the possible reason.

Thanks.

modified on Tuesday, September 23, 2008 8:35 AM

Multicolumn CComboBox?

bosfan23-Sep-08 1:37

bosfan

23-Sep-08 1:37

Hello,
i looking for a multicolumn combo box(something like in VBA), is there any known article for this??

Thanks in advance!
termal

Re: Multicolumn CComboBox?

Rajesh R Subramanian23-Sep-08 1:48

Rajesh R Subramanian

23-Sep-08 1:48

A simple search turned up these:

Flat-MultiColumn combo box with auto complete[^]

Multi column combo box[^]

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Multicolumn CComboBox?

bosfan23-Sep-08 2:03

bosfan

23-Sep-08 2:03

Hi,
thanks for help!
Smile | :)

regards
termal

RasDial() howto

eusto23-Sep-08 1:28

23-Sep-08 1:28

I'm trying to use RasDial to connect through a modem to a network
my code:

RASDIALPARAMS rdParams;
rdParams.dwSize = sizeof(RASDIALPARAMS);
rdParams.szEntryName[0] = '\0';
lstrcpy(rdParams.szPhoneNumber, strPhoneNr);
rdParams.szCallbackNumber[0] = '\0';
lstrcpy( rdParams.szUserName, strUserNr);
lstrcpy( rdParams.szPassword, strPassword);
rdParams.szDomain[0] = '\0';

HRASCONN hRasConn = NULL;
dwRet = RasDial( NULL, NULL, &rdParams, NULL, NULL, &hRasConn );

The RasDial call results in a XP bluescreen. Anybody ever got this error? What should i check for?

Thanks

David Crow23-Sep-08 3:17

23-Sep-08 3:17

eusto wrote:
The RasDial call results in a XP bluescreen.

Does this mean that RasDial() is not returning?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

eusto23-Sep-08 3:34

23-Sep-08 3:34

Yes, it is not returning. My whole computer dies.

The fix for me is to use the phone book feature of windows:

RASDIALPARAMS rdParams;
rdParams.dwSize = sizeof(RASDIALPARAMS);

//set the szEntryName to an already defined connection
lstrcpy(rdParams.szEntryName,strPredefinedConnectionName);
//not using these features because they're already defined in that connection
rdParams.szPhoneNumber[0] = 0;
rdParams.szPhoneNumber[0] = 0;
rdParams.szUserName[0] = 0;
rdParams.szPassword[0] = 0;
rdParams.szCallbackNumber[0] = '\0';
rdParams.szDomain[0] = '\0';

HRASCONN hRasConn = NULL;
dwRet = RasDial( NULL,
    "C:\\Documents and Settings\\"
        "All Users\\Application Data\\"
        "Microsoft\\Network\\Connections\\Pbk\\rasphone.pbk", //the system path to the phone book
        &rdParams,
        NULL,
        NULL,
        &hRasConn
        );

It's a bit frustrating that i can't use this to work with "on the fly" dialup connections. The windows blue screen really scares me Sigh | :sigh:

David Crow23-Sep-08 3:40

23-Sep-08 3:40

So the only difference is the second argument? MSDN states that if this parameter is NULL, the function uses the current default phone-book file. The default phone-book file is the one selected by the user in the User Preferences property sheet of the Dial-Up Networking dialog box. Do you have this set up?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

eusto23-Sep-08 4:38

23-Sep-08 4:38

The difference is in the way i specify the connection to use. I'm telling RasDial to use the strPredefinedConnectionName (ex: a connection named MyDialup that appears in network connections) from the specified phone book.

I've read that in MSDN also but i couldn't find the dialog for this setting. Do you think that the blue screen error is caused by the fact that my default user does not have a phonebook configured?

David Crow23-Sep-08 4:46

23-Sep-08 4:46

eusto wrote:
Do you think that the blue screen error is caused by the fact that my default user does not have a phonebook configured?

I would hope not. The BSOD is when Windows has gotten really angry and something totally unexpected has happened in some code. Telling Windows to use a file that does not exist should simply result in a normal "error" message box (i.e., failing gracefully).

I'm sorry I do not have any better suggestions.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

eusto23-Sep-08 4:57

change Static text font size

23-Sep-08 4:57

Thanks man. I'll try to read further on this matter and i'll post my answer here

Dhiraj kumar Saini23-Sep-08 0:13

Dhiraj kumar Saini

23-Sep-08 0:13

Hi,

I have a static text which is being initialized during runtime.
I want to change the font size of the static text.

Please tell how to do it.

Thanks & Regards.

Dhiraj Kumar Saini

Re: change Static text font size

KarstenK23-Sep-08 0:28

KarstenK

23-Sep-08 0:28

with SetFont(), if it doesnt work make CStatic derived class to draww yourself as wanted.

Greetings from Germany

side by side configration error

VCProgrammer22-Sep-08 23:55

VCProgrammer

22-Sep-08 23:55

Hi all,

I am working on vc2008 and when i run its exe on any other machine it gives side by side configration error. I have tried both release and debug mode.

thanks in advance

toxcct23-Sep-08 0:03

toxcct

23-Sep-08 0:03

missing redistributable libs ?

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

VCProgrammer23-Sep-08 0:07

VCProgrammer

23-Sep-08 0:07

how can i remove this??

Rajesh R Subramanian23-Sep-08 0:08

Rajesh R Subramanian

23-Sep-08 0:08

Someone asked you a question. Answer it first, or tell us that you didn't understand the question.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

VCProgrammer23-Sep-08 0:14

VCProgrammer

23-Sep-08 0:14

ya actually i didn't understood it.....

i thought that it was an answer....

Rajesh R Subramanian23-Sep-08 0:18

Rajesh R Subramanian

23-Sep-08 0:18

When you ship your project, you must make sure that the runtime components required by your application are installed on the target computer. All such components are packed as a redistributable by Microsoft and given to us.

The redist for VC 2008 (x86) is available here:
Visual C++ 2008 Redistributables[^]

The other user asked you if you have installed this redistributable on the target computer, where you get a side-by-side configuration error.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]