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Re: How do I catch the 0xC0000005 Exception?

mildred-frontfree13-Apr-09 23:42

mildred-frontfree

13-Apr-09 23:42

Thanks for your suggestion!
I tried it before, but it didn't work. Anyway, I found it is better to fix this problem in the dll file which throw the exception using __try__catch.

How to cancel long time drawing

fitatc13-Apr-09 21:31

fitatc

13-Apr-09 21:31

I am writing a code to do a long time draw like:

void MyDialog::DoSlowDraw(DWORD tDelay){
     while(notFinished){
        DrawNextLine(); // like LineTo()....
        Sleep(tDelay);
     }
 }

And it's better to have a "cancel button" because it may take a long time according to tDelay.
---------------------
Cry | :((

My try:
To handle "cancle button clicked Message" , Drawing must be done by another thread.

UINT DrawProc( LPVOID pParam )
{
    CMyDialog* pform = (CMyDialog*)pParam;
    int timeDelay = pform->timeD;
    Line_list* pLines = pform->m_pLines;
    CClientDC cdc(pform);
    //Draw....

It's worked, but as far as I know
1. Work thread should not touch the GUI ---- (Do the drawing).
2. MFC object should not passed to another thread ---- (passing drawing data by CMyDialog*)

Confused | :confused:

Is there a good way to cancle long time drawing.

Re: How to cancel long time drawing

David Crow14-Apr-09 3:11

David Crow

14-Apr-09 3:11

fitatc wrote:
Is there a good way to cancle long time drawing.

See here.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: How to cancel long time drawing

fitatc14-Apr-09 22:31

fitatc

14-Apr-09 22:31

May be You misunderstanding my qustion because of my poor english.
My Question is "How to do multiThread thing in one GUI thread." in another word.

But by your advise, I did find the answer from old Qustions By another guy:
http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=570370[^]

Re: How to cancel long time drawing

David Crow15-Apr-09 3:02

David Crow

15-Apr-09 3:02

fitatc wrote:
May be You misunderstanding my qustion because of my poor english.

I understood you perfectly. If you are drawing in a worker thread and you need to cancel that thread, my advice is the way to go. Using a message pump is an antiquated and largely unused 16-bit Windows solution.

Re: How to cancel long time drawing

fitatc16-Apr-09 16:31

fitatc

16-Apr-09 16:31

Sorry for my late response,(I am in a busy work now)

You are right, but before that,
Confused | :confused:

Do you think it is OK to draw in the work thread?
I mean, a good design? because drawing is touching the GUI I thought, maybe I was wrong.

Re: How to cancel long time drawing

David Crow17-Apr-09 2:23

David Crow

17-Apr-09 2:23

fitatc wrote:
Do you think it is OK to draw in the work thread?

I would think not. Have the worker thread post a message to the main thread (that owns the UI).

How to retrieve bits from a file using MFC

Pankaj D.Dubey13-Apr-09 20:36

Pankaj D.Dubey

13-Apr-09 20:36

I am writing a code to read the bits from the file. Starting from first bit, i can read the whole file, and can retrieve the whole data as well. But if i want to retrieve the bits from somewhere between the file, how should i do this? One more thing, i am doing a string comparision of a module(and that module repeats several times in the file) and then i am retrieving the bits hence i can,t apply character counting.

It was a woman who drove me to drink but I never got opportunity to thank her

Re: How to retrieve bits from a file using MFC

Cedric Moonen13-Apr-09 20:56

Cedric Moonen

13-Apr-09 20:56

dubeypankaj wrote:
But if i want to retrieve the bits from somewhere between the file, how should i do this?

It depends on how you are reading your file. Are you using an ifstream, a FILE, a CFile, ... ? Typically, you can set the file pointer (e.g. CFile::Seek, ifstream::seekg, ...). You should look at the documentation for more information.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: How to retrieve bits from a file using MFC

KarstenK13-Apr-09 21:13

KarstenK

13-Apr-09 21:13

Read the file in binary mode completly in a buffer, and than you can do what you want. $Shucks | :-\$

Press F1 for help or google it.
Greetings from Germany

Regwrite in bat file

p_196013-Apr-09 20:09

p_1960

13-Apr-09 20:09

Hi,
May i know how can read and write registry thru batch file.....

Re: Regwrite in bat file

_AnsHUMAN_ 13-Apr-09 20:19

_AnsHUMAN_

13-Apr-09 20:19

Link[^]

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Regwrite in bat file

birajendu13-Apr-09 20:19

birajendu

13-Apr-09 20:19

U can use reg command to do so. to know more http://commandwindows.com/reg.htm[^]

birajendu
CyberG India
Delhi
India

HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

birajendu13-Apr-09 20:02

birajendu

13-Apr-09 20:02

Hi,

I would like to build an win32 application which sould not inherit from explorer.exe. By default all MFC/Win 32 applications are loaded in explorer.exe. so any crash of application is causing crash to explorer and vice versa..

So i need to find out a way where my application wont be loaded in explorer.

Thanks in advance.

Birajendu
SonicWALL India.
Bangalore.
India

Re: HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

_AnsHUMAN_ 13-Apr-09 20:14

_AnsHUMAN_

13-Apr-09 20:14

birajendu wrote:
win32 application which sould not inherit from explorer.exe

I will tell you a trick, try to figure out where your application is crashing and why.
Fix the bug.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

birajendu13-Apr-09 20:26

birajendu

13-Apr-09 20:26

Obviosly i will do that. But that is not the only solution. It would be nice if we can luch programs with out inheriting from explorer.exe. I saw some apllication from some trusted venders used to do so.. they dont load their application on explorer.

birajendu
CyberG India
Delhi
India

Re: HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

Cedric Moonen13-Apr-09 20:35

Cedric Moonen

13-Apr-09 20:35

birajendu wrote:
It would be nice if we can luch programs with out inheriting from explorer.exe

Well, that's the case. I have no clue about what you mean by "inheriting explorer"... If your application crashes, explorer doesn't crash. They are two independant things, so why would they interfere ? Unless maybe you are talking about something specific like a shell extension ?

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

birajendu14-Apr-09 1:01

birajendu

14-Apr-09 1:01

yeah.. not exactly inheriting.. but all the applications in window by default load on explorer, some thing like child process of explorer. And my application is also doing the same. But i saw some applications like MacAfee client are independent.

birajendu
CyberG India
Delhi
India

Re: HOW TO MAKE A WIN32 APPLICATION NOT INHERITING FROM EXPLORER.EXE?

David Crow14-Apr-09 3:15

David Crow

14-Apr-09 3:15

birajendu wrote:
But i saw...

Using?

PropertySheet

john563213-Apr-09 19:39

john5632

13-Apr-09 19:39

Hi,

I want to create resizable propetysheet with watermark bitmap background.
Or a Header bitmap with colored background.

I am able to resize the proprtysheet but not header bitmap and background bitmap.

Please suggest some artical to do so.

Re: PropertySheet

_AnsHUMAN_ 13-Apr-09 20:24

_AnsHUMAN_

13-Apr-09 20:24

CPropertySheet(
LPCTSTR pszCaption,
CWnd* pParentWnd,
UINT iSelectPage,
HBITMAP hbmWatermark,
HPALETTE hpalWatermark = NULL,
HBITMAP hbmHeader = NULL
);
See the parameters in bold. For setting the background you can override OnPaint message of your property sheet class

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

how to get text(caption) associated with IDs in MFC dialog based application?

Purish Dwivedi13-Apr-09 19:31

Purish Dwivedi

13-Apr-09 19:31

I have resource DLLs for my application. I'm loading DLL in my application. I want to get text associated with all the IDs.Longer way I know but that is quite hectic and not a good programming style.
I just want to know the shortcut code for that which uses some APIs and loads the text.
Can anyone help me?
Thanks.......

Re: how to get text(caption) associated with IDs in MFC dialog based application?

_AnsHUMAN_ 13-Apr-09 20:16

_AnsHUMAN_

13-Apr-09 20:16