Re: "Debug Assertion Failed!" - C / C++ / MFC Discussion Boards

C^hris L^osinger13-Jul-05 5:54

13-Jul-05 5:54

you might also check out ImageMagick. it does a lot of formats, and picking out the code you need is, not exactly easy, but definitely do-able.

Cleek | Image Toolkits | Thumbnail maker

Re: 24-bit BMP to GIF or PNG in MSVC++5

TotalRecall13-Jul-05 6:21

TotalRecall

13-Jul-05 6:21

Hey, thanks. That looks quite promising.

I'm baffled that in the years of VC++ GIFs and BMPs that someone hasn't put together something quick fairly simple like an idiot-proof function lib. Searching Google its like PNGs and BMPs were only invented 12 months ago!. Top marks to the GD2 guys but its a bit too hardcore for me to compress one image. I'm pretty sure I'll have to strip the guts out of some other code and rewrite a small library. Laugh | :laugh:

LZ algorithm

DavidR_r13-Jul-05 4:28

DavidR_r

13-Jul-05 4:28

Hi,
I want to process LZ compression on some buffer of memory.
As far as I know LZExpand package enables to read only the zipped files.
Can anybody give me a hint?
Thanks

DavidR

Re: LZ algorithm

Joe Woodbury13-Jul-05 7:41

Joe Woodbury

13-Jul-05 7:41

Get and use the zlib library.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: LZ algorithm

C^hris L^osinger13-Jul-05 15:05

C^hris L^osinger

13-Jul-05 15:05

(but wait until they've fixed the latest buffer overrun problem)

Cleek | Image Toolkits | Thumbnail maker

Re: LZ algorithm

Joe Woodbury13-Jul-05 17:49

Joe Woodbury

13-Jul-05 17:49

When I read about the bug last week, dummy me thought they'd already fixed it. However, for controlled data, I don't think it's a problem.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

"Debug Assertion Failed!"

Halawlaws13-Jul-05 4:11

Halawlaws

13-Jul-05 4:11

I have a problem
I finished programming my c++ software
When I run the software, it is working normaly but when I exit the dialog using DestroyWindow() an error message appears saying: "Debug Assertion Failed!" winhand.cpp and line 229
Then, the software exit like it is suppose too but how can i get rid of this message
help plz it is very bothering

and i couldn't enter my name and e-mail to send this message for a reason although i am halawlaws and my e-mail is ahalwany@hotmail.com

thx

Halawlaws

Re: "Debug Assertion Failed!"

David Crow13-Jul-05 5:35

David Crow

13-Jul-05 5:35

Halawlaws wrote:
...but when I exit the dialog using DestroyWindow()...

Why are you doing this? Is this a modal dialog?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: "Debug Assertion Failed!"

bugDanny13-Jul-05 5:55

bugDanny

13-Jul-05 5:55

Try exiting the dialog using EndDialog(). Also, sometimes it is helpful to look at the code the error message is pointing you to, in this case winhand.cpp/line 229. And by the way,

Halawlaws wrote:
Then, the software exit like it is suppose too

The software is not exiting like it is supposed to. The software is aborting becuase of a debug assertion failure. If, for example, when exiting this dialog you were supposed to return to another part of the program, your software would still completely exit.

I can't tell anything more without actually seeing some of your code. Hope this helps!

Danny

Re: "Debug Assertion Failed!"

Halawlaws13-Jul-05 20:16

Halawlaws

13-Jul-05 20:16

Hey Dany thx man EndDialog(0) worked my program is now perfect but i still didn't know why this assertion problem occured

regards
Halawlaws

How to set different titles for views of the same document

Yaron Abershitz13-Jul-05 4:03

Yaron Abershitz

13-Jul-05 4:03

Hi there,
I have in my application a window in which I open files for edit. I present them in a tab style when there is more than one window open (similar to the source browser window in Visual Studio). what I'm trying to do is changing the name of the tab for views which are of the same document. Unfortunatly, I have no success till now.
First I try SetTitle() but ofcaurse that causes to all of the tab titles related to the same document to be changed.
Then I tried to do the following steps:
I add in
1. CChildFrame::PreCreateWindow(CREATESTRUCT &cs) :
cs.style&=~(LONG)FWS_ADDTOTITLE;
2. CMyView::OnInitialUpdate() :
GetParent()->SetWindowText("temp");
but it made no effect on the title.

How can I change the title of those tabs ? From where those tabs take the data for the title ?

I really need your help here,
thanks,
yaron.

Re: How to set different titles for views of the same document

Jose Lamas Rios13-Jul-05 7:42

Jose Lamas Rios

13-Jul-05 7:42

Try overriding OnUpdateFrameTitle (undocumented) in your CChildFrame. Look at the standard implementation of CMDIChildWnd::OnUpdateFrameTitle in MFC source files to get a hint on how to implement it.

Hope that helps,

--
jlr
http://jlamas.blogspot.com/[^]

Problem With Date Conversion

astien13-Jul-05 4:00

astien

13-Jul-05 4:00

Hello,

I have a CString variable with a date and i want to extract the day.

My problem is that i don't know the regional settings of the machine (for example if date is yyyy-mm-dd or dd-mm-yyyy) so i can't use for example .left(2)

I want to know if i can access to the regional setting format date in C++ or how to convert a CString into a date.

Thanks

Re: Problem With Date Conversion

basementman13-Jul-05 4:50

basementman

13-Jul-05 4:50

Using the win32 api, you could do something like this snippet here:

char caData[256];

caData[0] = 0;
GetLocaleInfo(LOCALE_SYSTEM_DEFAULT,LOCALE_SSHORTDATE,caData,sizeof(caData)-1);
m_cShortDateFormat = CString(caData);

char *p = caData;
while (*p && *p == ' ')
  p++;

switch (*p)
  {
    case 'd':
      m_cClientFormValidationDateFormat = "D/M/Y";
      break;
    case 'Y':
      m_cClientFormValidationDateFormat = "Y/M/D";
      break;
    case 'M':
    default:
      m_cClientFormValidationDateFormat = "M/D/Y";
      break;
  }

onwards and upwards...

Re: Problem With Date Conversion

David Crow13-Jul-05 5:39

David Crow

13-Jul-05 5:39

Something like:

CString strDate;
COleDateTime date;
date.ParseDateTime(strDate, VAR_DATEVALUEONLY);
TRACE("Day = %d\n", date.GetDay());

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

How to avoid from ListCtrl flickering???

eli1502197912-Jul-05 23:17

eli15021979

12-Jul-05 23:17

Hi,
I'm using ClistCtrl to display some data I'm receiving.
I need to display only the updated data,so the old data will disappear when there is new data to display(i get new data every 200msec).
The problem is that my ListCtrl is flickering when I'm calling
MyList.DeleteAllItems() function(I'm doing it with timer event).

How can I avoid this annoying flickering?

With best regards,
Eli

Re: How to avoid from ListCtrl flickering???

Neelesh K J Jain13-Jul-05 1:29

Neelesh K J Jain

13-Jul-05 1:29

Instead of using DeleteAllItems(), use CustomDraw message handler and in that one include to DeleteAllItems() and insert the new data.

Neelesh K J Jain.

Re: How to avoid from ListCtrl flickering???

eli1502197913-Jul-05 2:02

eli15021979

13-Jul-05 2:02

Hi Neelesh,

Thanks for your prompt reply.
Do you have any example how to do this?
How should I use the CustomDraw message handler?

Regards,
Eli

Re: How to avoid from ListCtrl flickering???

Neelesh K J Jain13-Jul-05 2:09

Neelesh K J Jain

13-Jul-05 2:09

Eli,
you can see the article "Dynamically Highlight Elements in a List Control" at http://www.codeproject.com/listctrl/highlightlistctrl.asp

Neelesh K J Jain

Re: How to avoid from ListCtrl flickering???

David Crow13-Jul-05 2:59

David Crow

13-Jul-05 2:59

How about a call to SetRedraw() before and after the insert/delete operations?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: How to avoid from ListCtrl flickering???

Jack Puppy13-Jul-05 2:59

Jack Puppy

13-Jul-05 2:59

I'd try this first:

SetRedraw

If you still get flicker, try drawing offscreen:

Flicker free drawing of any control

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Painted on the side of a dog trainer's van: SIT HAPPENS

Re: How to avoid from ListCtrl flickering???

Bert [Otherside82] Derijckere13-Jul-05 3:04

Bert [Otherside82] Derijckere

13-Jul-05 3:04

You can disable the painting on the list control with SetRedraw(FALSE);
I'm using this technique when updating my list controls.

m_lstCtrl.SetRedraw(FALSE);
m_lstCtrl.DeleteAllItems();
//Add all new items
...
m_lstCtrl.SetRedraw(TRUE);
//you might need this to force the redraw to happen faster:
//m_lstCtrl.UpdateWindow();

IMO this is easier than trying to implement Custom or Owner Draw

how to make the application starts with the system?

zhaopi12-Jul-05 23:13

zhaopi

12-Jul-05 23:13

I am trying to implement an mfc dialog based application which will start when the system starts up just like a windows service...

Re: how to make the application starts with the system?

Andrew Kirillov12-Jul-05 23:21

Andrew Kirillov

12-Jul-05 23:21

Hello

You can place your app path into registry under the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Andrew

Re: how to make the application starts with the system?

AntonlioX13-Jul-05 21:16

AntonlioX

13-Jul-05 21:16

Another Method is to place a shortcut of your application on the directory "startup"

AntonlioX

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.