mutual connection class - C / C++ / MFC Discussion Boards

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Re: about thread memory space

DSPCottage8-Oct-07 1:35

DSPCottage

8-Oct-07 1:35

Dear Matthew
Do you know any function to lock a space which is allocated by new operator.
Regards

Re: about thread memory space

chandu0048-Oct-07 2:00

chandu004

8-Oct-07 2:00

preliminarily,
did you try to use some global flags as the semaphores?
this simple technique worked for me for solving very complex thread problems.
just try it out and see.

How to get Quit Event from WORD?

PhanMinhDuy7-Oct-07 21:37

PhanMinhDuy

7-Oct-07 21:37

I am writing a plugin which get text from WORD after quitting WORD. But I do not know how to catch Quit event of WORD from my plug-in function. D'Oh! | :doh:

Thanks

Phan Minh Duy.

transfer to login page

Rafiuddinmd7-Oct-07 21:21

Rafiuddinmd

7-Oct-07 21:21

hi,
i want to transfer to login page after 5 minutes of login

Md.Rafiuddin
Sr. Software Engineer,
IndusBusiness Systems,
Hyderabad

Re: transfer to login page

Nelek7-Oct-07 21:36

Nelek

7-Oct-07 21:36

mmm... Anyone here is/knows a medium? Maybe then can someone know what is this quesion about.

"after 5 mins"

What about a Timer?

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

Wink | ;)

Re: transfer to login page

David Crow8-Oct-07 3:51

David Crow

8-Oct-07 3:51

What "login page?" Please explain, in detail, what are you after.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: transfer to login page

Iain Clarke, Warrior Programmer8-Oct-07 6:46

Iain Clarke, Warrior Programmer

8-Oct-07 6:46

Rafiuddinmd wrote:
i want to transfer to login page after 5 minutes of login

Go on then!

Taking a guess at your question... (As a SENIOR software engineer, you should be able to actually phrase a question....)

Set a 5 minute countdown on the screen saver, and tick the box saying "On resume password protect". The wording is accurate for english windows XP, but I'm sure the idea is the same in Vista etc.

Iain.

mutual connection class

JesusLeFou1327-Oct-07 21:03

JesusLeFou132

7-Oct-07 21:03

Hi,

I have a little problem in class declaration. Sigh | :sigh:

It is easy to understand, and to solve too, I believe: my class are declared in 2 separated header files:

A.h =>
#pragma once
#include "B.h"

class A
{
protected:
B* m_Bparam;
...
}<=

B.h =>
#pragma once

class B
{
protected:
A* m_Aparam
...
}<=

I imagine you can see the problem. When starting to compile A.h file, it will read B.h where a A type parameter is declared, but the compiler doesn't know the class A yet.

Is there any keyword to help solve this solution? I think I can find a workaround by using interfaces, but I imagine there is an easier way to do so, and get a clean program.

Thank you in advance,

Fred Wink | ;)

Re: mutual connection class

Roger Broomfield7-Oct-07 21:09

Roger Broomfield

7-Oct-07 21:09

predeclare them, this will only work because you are not actually using them just declaring a pointer.

A.h =>
#pragma once

class B;
class A
{
protected:
B* m_Bparam;
...
}<=

B.h =>
#pragma once

class A;
class B
{
protected:
A* m_Aparam
...
}<=

Re: mutual connection class

Cedric Moonen7-Oct-07 21:16

Cedric Moonen

7-Oct-07 21:16

Roger already gave you the solution, but if you want to find more info on the subject, you can google for "forward declaration" (that's how it is called).

Cédric Moonen
Software developer

Charting control [v1.2]

Re: mutual connection class

JesusLeFou1327-Oct-07 21:58

JesusLeFou132

7-Oct-07 21:58

Thank you very much Roger and Cedric!

Have a nice day !

How to add a page in the mouse of the control panel ?

nike_zzyun7-Oct-07 20:38

nike_zzyun

7-Oct-07 20:38

Hi everyone,
How to add a page in the mouse of the control panel ?
Thanks!

Nike

Re: How to add a page in the mouse of the control panel ?

Hamid_RT7-Oct-07 21:21

Hamid_RT

7-Oct-07 21:21

Can you more explain?

Re: How to add a page in the mouse of the control panel ?

nike_zzyun7-Oct-07 21:40

nike_zzyun

7-Oct-07 21:40

Open the control panel ,when click the mouse, the pages of the Buttons, Pointers,Pointer Options,Whell,Hardware in the mouse attribute page.
I want to with the VC++/MFC to add a page in the mouse attribute page.
Thanks!

Nike

Errors about #import. Help me.

kcynic7-Oct-07 17:46

kcynic

7-Oct-07 17:46

I use #import to import an .exe file(which use COM)to my project.
There are two new file create by that statement: .tlh and .tli.

But there are some strange errors occured.

error C2059: syntax error : 'constant'
error C2238: unexpected token(s) preceding ';'
error C2589: '(' : illegal token on right side of '::'
error C2143: syntax error : missing ';' before '::'
error C2059: syntax error : '::'
error C2143: syntax error : missing ';' before '{'
error C2447: '{' : missing function header (old-style formal list?)

Someone would like to help me,Why?
Thanks.

GOOD LUCK

Re: Errors about #import. Help me.

ShilpiP7-Oct-07 22:42

ShilpiP

7-Oct-07 22:42

Can u pls send ur code? If possible.

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

Re: Errors about #import. Help me.

kcynic7-Oct-07 23:20

kcynic

7-Oct-07 23:20

of course.but the whole code is too long,i would paste a snip of it.
Because these days,I am test iTunes libaray.Here,"iTunes.exe" is valiable everywhere,such as apple.com,its lastest version is 7.3.2.4 on that web site.I use 6.0.0.18
I use such code to import the COM of iTunes:

#import "iTunes.exe"
..
..
//in .tlh file:

//error code here<br />
 //<br />
    // Wrapper methods for error-handling<br />
    //<br />
<br />
    ITSourceKind GetKind ( );<br />
    double GetCapacity ( );<br />
    double GetFreeSpace ( );//error here<br />
    IITPlaylistCollectionPtr GetPlaylists ( );

in .tli file:

//error here<br />
inline double IITSource::GetFreeSpace ( ) {//error<br />
    double _result = 0;<br />
    HRESULT _hr = get_FreeSpace(&_result);<br />
    if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this));<br />
    return _result;<br />
}

And if delete the error statement,no errors.
If there is no errors,I also want to know how to use the new file.
Thank you very much.

GOOD LUCK.

How to locate Application Folder in MFC?

TooShy2Talk7-Oct-07 16:56

TooShy2Talk

7-Oct-07 16:56

Hello guyz,

I have a problem, hope someone can help me.
When I create setup files, I declare taget location for Application Folder of the software. But at the start of the program I need to access the said folder for a file (*.ini) that i included in the setup.
For now, what i do is to state the default location. For example, c;\Program Files\Application Folder.
Problem arises when user change the target location of the folder and my program can't locate it anymore.
Is there a way to locate wherever the user placed the Apllication Folder?
How will I implement it in the source code?

Re: How to locate Application Folder in MFC?

Roger Broomfield7-Oct-07 19:15

Roger Broomfield

7-Oct-07 19:15

The GetModuleFileName function retrieves the fully qualified path for the specified module.

Setting item / row height in CListCtrl

s196675m7-Oct-07 16:34

s196675m

7-Oct-07 16:34

Is there any way to change the row height of CListCtrl item withour owner drawing?

Thank you.

msc

Re: Setting item / row height in CListCtrl

Naveen7-Oct-07 20:17

Naveen

7-Oct-07 20:17

s196675m wrote:
Is there any way to change the row height of CListCtrl item withour owner drawing?

Increase the font size.

Another option is to set an image list. I.e Create an image list and set it to the list control. The height of the list control will increase to the height of the image list.

nave

[OpenedFileFinder]

convert twips to pixels?

littleGreenDude7-Oct-07 15:07

littleGreenDude

7-Oct-07 15:07

anybody have a code snippet/function to convert twips to pixels?

Re: convert twips to pixels?

Mark Salsbery7-Oct-07 15:38

Mark Salsbery

7-Oct-07 15:38