Re: CString memory leak - C / C++ / MFC Discussion Boards

Re: CString memory leak

prasad_som18-Oct-05 3:02

prasad_som

18-Oct-05 3:02

post the code

Re: CString memory leak

mails_aphale18-Oct-05 3:48

mails_aphale

18-Oct-05 3:48

code is big & it contains lot of my function calls (user defined). it seems difficult.

Re: CString memory leak

vikas amin18-Oct-05 3:51

vikas amin

18-Oct-05 3:51

might be your string pointer is deleted before the call to destructor

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: CString memory leak

mails_aphale18-Oct-05 18:52

mails_aphale

18-Oct-05 18:52

i don't understand.
can u just elaborate

Re: CString memory leak

David Crow18-Oct-05 3:52

David Crow

18-Oct-05 3:52

How are you using these CString variables?

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

Re: CString memory leak

Rage18-Oct-05 5:35

Rage

18-Oct-05 5:35

Hey David, dropped the underlines ? Where is David ? Big Grin | :-D

~RaGE();

Re: CString memory leak

David Crow18-Oct-05 5:54

David Crow

18-Oct-05 5:54

It was simply time for a change. I was trying not to get too eccentric.

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

Re: CString memory leak

mails_aphale18-Oct-05 18:51

mails_aphale

18-Oct-05 18:51

CString strVarName;
CString strLine = <sometext>;

strVarName = strLine.Mid();

thats how it is.

Re: CString memory leak

David Crow19-Oct-05 2:43

David Crow

19-Oct-05 2:43

mails_aphale wrote:
CString strLine = ;

Aside from this, I see nothing strange. Have you compiled the project in Debug mode and started it via F5? If you have memory-related issues, they will show up in the debug output window.

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

taskbar title for MFC application

Mircea Grelus18-Oct-05 2:49

Mircea Grelus

18-Oct-05 2:49

Hello!
I have a dialog based MFC application with "Style: Popup" and "Border: None". So the system menu, title bar, minimize box, maximize box are not displayed. Also the "Caption" edit is disabled. I want to set a title for the application to be displayed in the taskbar since with the above mentioned settings it only displays the icon.

How can I set the title?

Thanks,
Mircea

Many people spend their life going to sleep when they’re not sleepy and waking up while they still are.

Re: taskbar title for MFC application

Mircea Puiu18-Oct-05 3:06

Mircea Puiu

18-Oct-05 3:06

SetWindowText()

SkyWalker

Re: taskbar title for MFC application

Mircea Grelus18-Oct-05 3:22

Mircea Grelus

18-Oct-05 3:22

I wasn't expecting it to be so simple, but hey, I don't mind. Big Grin | :-D

thanks a lot.
Mircea

Many people spend their life going to sleep when they’re not sleepy and waking up while they still are.

Multiple Views with Activex Controls

subramanyeswari18-Oct-05 2:26

subramanyeswari

18-Oct-05 2:26

Hi,

I have to display a window with top pane displaying a richtext edit control and bottom one displaying msflexgrid.

I added two controls(rich text edit control and msflexigrid).
Created two views.
Added a variable(rich text) for the first view.
Added a variable(msflexigrid) for the second view.
In mainframe.cpp in oncreateclient
i created a static splitter and createdviews with the two views.

But none of the splitter window(view?) is displaying activex control.

What should i do.

Regards,

Re: Multiple Views with Activex Controls

Mircea Puiu18-Oct-05 3:09

Mircea Puiu

18-Oct-05 3:09

Take care of the z-order of the windows. The farther is "less" visible.

SkyWalker

Re: Multiple Views with Activex Controls

18-Oct-05 17:29

Thank you. It worked. But a small problem.
The top pane/view contains richtext edit control. on CSize of View function i added code to adjust richtext edit control position. This is working fine.

But the bottom pane/view contains msflexgrid. on CSize of View function i added code to adjust msflexigrid control position. This is not working i mean it is in the initial position of (0,0,0,0). What property of msflexigrid control should be set or is it the intended behaviour of msflexigrid control.

Regards

-- modified at 23:29 Tuesday 18th October, 2005

Re: Multiple Views with Activex Controls

Mircea Puiu18-Oct-05 19:41

Mircea Puiu

18-Oct-05 19:41

Try setting the AllowUserResizing property to flexResizeBoth.

See also more on MSFlexGrid on MS's page at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/mshflx98/html/vbidxMSFlexGridControlConstants.asp[^]

SkyWalker

Re: Multiple Views with Activex Controls

subramanyeswari18-Oct-05 18:12

subramanyeswari

18-Oct-05 18:12

Hi,

I don't now the number of columns in advance for a msflexigrid. How to compute the columns dynamically and pass to the function setcols.

Re: Multiple Views with Activex Controls

Mircea Puiu18-Oct-05 20:07

Mircea Puiu

18-Oct-05 20:07

GetCols() gives you the number of columns
SetCols() allows you to set the new number of columns
SetColPosition() is used to change the position of a column.

More about using the control you can get by reading this article here at CP:
http://www.thecodeproject.com/miscctrl/Flexgrid.asp?df=100&forumid=4193&exp=0&select=929859#xx929859xx[^]

SkyWalker

windows CE, change display contrast

Member 64733418-Oct-05 2:00

Member 647334

18-Oct-05 2:00

Hello!
i'm trying to change the contrast of my windows CE 4.2 device.
After some search on the net i found some methods to change the contrast,
all based on ExtEscape() function. Unfortunately ExtEscape always returns 0
on my device, no matter what escape code i pass to it.
This is a snapshot of my code:

bool SetContrast(int nParam)
{
ContrastCmdInputParm ContrastParm;
int rc, fQueryEsc;

fQueryEsc = CONTRASTCOMMAND;
HDC hdc= GetDC(NULL);
rc = ExtEscape (hdc, QUERYESCSUPPORT, sizeof (fQueryEsc),
(LPSTR)&fQueryEsc, 0, 0);
if (rc == 0) {
// No support, fail.
ReleaseDC (NULL, hdc);
return false;
}
ContrastParm.command = CONTRAST_CMD_SET;
ContrastParm.parm = nParam;
int nCode= ExtEscape(hdc, CONTRASTCOMMAND, sizeof(ContrastCmdInputParm),
(LPCSTR)&ContrastParm, 0, NULL);
ReleaseDC(NULL, hdc);
return (nCode > 0);
}

This function always fail with no support.

Can anyone help me?

Re: windows CE, change display contrast

vikas amin18-Oct-05 3:57

vikas amin

18-Oct-05 3:57

I am new to WinCE & want to start up fast
i have 1+ exp in VC++.
Can u suggest me some good online reference
if u have some ebooks thats great pls send me
I am plaining a project on VOIP in WinCE

U r reply is importent to me

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: windows CE, change display contrast

vikas amin19-Oct-05 3:02

vikas amin

19-Oct-05 3:02

Debugging crash - HELP

dharani18-Oct-05 1:43

dharani

18-Oct-05 1:43

Hi all
I have an EXE crashing . But I can not use map files as the EXE is not produced from VC++ envt . This is already produced EXE so how can I find out the entry point of crash from the EXE ?

redindian

Re: Debugging crash - HELP

S. Senthil Kumar18-Oct-05 4:06

S. Senthil Kumar

18-Oct-05 4:06

Did you try WinDbg[^]? It's not very easy to use, it's a command line debugger, but it might offer you valuable clues to debug the problem.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

How to change color of push button

aloktambi18-Oct-05 1:28

aloktambi

18-Oct-05 1:28

dear sir,
i want to change background color of push buttons in my MFC program .how to change clor of buttons at run time

Re: How to change color of push button

Iain Clarke, Warrior Programmer18-Oct-05 1:45

Iain Clarke, Warrior Programmer

18-Oct-05 1:45

You can handle the CWnd::OnCtlColor / WM_CTLCOLOR message in your dialog class, and return a brush of your choice.

Windows will then use that brush to paint the background of a control.

Do a search for OnCtlColor in msdn, and it will even give sample functions.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmfc98/html/_mfc_cwnd.3a3a.onctlcolor.asp[^]

Good luck,

Iain.

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