C / C++ / MFC Discussion Boards

Ravi Bhavnani5-Oct-02 7:21

5-Oct-02 7:21

Hmm, you could try using one of SPI_ constants (none seemed obvious) in GetSystemMetrics() to get the height of the list control's header control, and use this value to resize the control.

Alternatively, you could just hide the list control and show a dummy one (of fixed height) with the same columns.

But if you want my honest opinion Smile | :)

the concept of a list control that changes its height seems suspect at first glance.

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: Got scrollbars?

nss5-Oct-02 7:29

nss

5-Oct-02 7:29

This part is a real pain, I'm just tossing about ideas. It uses a CP class, and it does okay sort of but not really. Like I repopulate the ctrl each time with new headers and data (new # of columns) . Somethings going horribly wrong with my logic, and I'm staring at it.....aaargh!
Thanks for your ideas though. Soon as the functionality works, I'l apply the cosmetic part.. Smile | :)

Help with property pages

DanYELL5-Oct-02 2:34

DanYELL

5-Oct-02 2:34

I have a demo project with several property pages in one
property sheet. To make a long story short, it's got a wicked
error. The computer just locks up after I click 7-8 property
pages. I have to reboot. I am absolutely stumped. Please,
can I email this demo project to someone who could look at it
and provide feedback? I am stumped beyond words.

Please, please, please, please, please, please, please, please.

My email address is brinasas@yahoo.com

Sincerely,
Danielle (an overworked graduate student)

Re: Help with property pages

Ravi Bhavnani5-Oct-02 10:59

Ravi Bhavnani

5-Oct-02 10:59

Are you running a debug build? If so, can you determine where the program locks up? It may be in an infinite loop. Also, what OS are you running?

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

ActiveX in VC++ client in VB

Shahbaba5-Oct-02 0:02

Shahbaba

5-Oct-02 0:02

I developed an ActiveX control in VC++. The control is very simple. It just fires two events simultaneously. I used in VC++ client. Whenever event is received, a message box is displayed. So my client application displays two message boxes immediately.

Now i want to use this control in Visual Basic. But i can only see one dialog box there despite two events are fired from control. I think when first message box is displayed the code is blocked and second message is discarded. Anyone having any idea about this problem, strange this problem is not in VC++ client ??

Re: ActiveX in VC++ client in VB

Roger Stewart5-Oct-02 18:10

Roger Stewart

5-Oct-02 18:10

VB is single-threaded. Whereas your VC++ client is probably set to the default, multi-threaded setting. If you change your VC++ project setting to single-threaded, you probably will experience the same behavior as the VB client.
VB message boxes are modal and will starve out the single-threaded application message pump until they are closed.

Roger Stewart
"I Owe, I Owe, it's off to work I go..."

HelpFile

Thushara4-Oct-02 22:38

Thushara

4-Oct-02 22:38

Hai Friends,
Can anyone help me to go to a particular topic in a help file when F1 is pressed.

Re: HelpFile

Ravi Bhavnani5-Oct-02 11:01

Ravi Bhavnani

5-Oct-02 11:01

See this article[^].

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

How to "SendMessage" to a listbox in a dialog class?

oRion4-Oct-02 22:26

oRion

4-Oct-02 22:26

I am currently writing a program which is ported from C++ for DOS. I have a routine which handles the output messages to the screen in DOS, but now I am trying to output it to a ListBox in a Dialog box. Here a fragment of the code i have written..

#include "stdafx.h"

void utility::message()
{
SendMessage(0,WM_MYCALL,0,0);
}
WM_MYCALL is a handler I defined in a dialog class.
Apparently, when I tried this command, nothing really happen. My program is a SDI program. Somehow, WM_MYCALL is not process at all by the dialog class? Why does this happen? Is there something I missed out? Confused | :confused:

Re: How to "SendMessage" to a listbox in a dialog class?

Mike Nordell4-Oct-02 22:52

Mike Nordell

4-Oct-02 22:52

You must tell it where to send the message. Somehow I dubt you have a dialog box with a HWND of zero. Smile | :)

Re: How to "SendMessage" to a listbox in a dialog class?

oRion5-Oct-02 3:46

oRion

5-Oct-02 3:46

Yup, that's right. But I am not sure how to get the handle for my dialog box. Do you have any suggestion? So right now I am sending to the main window.

WTF | :WTF:

Re: How to "SendMessage" to a listbox in a dialog class?

Pavel Klocek5-Oct-02 4:20

Pavel Klocek

5-Oct-02 4:20

mydlg.GetSafeHwnd()

Pavel
Sonork 100.15206

Re: How to "SendMessage" to a listbox in a dialog class?

Mike Nordell5-Oct-02 4:23

Mike Nordell

5-Oct-02 4:23

If you have a dialog, surely you must know its HWND?

For every message your dialogs message-pump handles, you get a HWND as part of the MSG (so if you handle WM_INITDIALOG, the WPARAM is the HWND of the dialog).

Re: How to "SendMessage" to a listbox in a dialog class?

oRion6-Oct-02 3:29

oRion

6-Oct-02 3:29

Thanks for the information. I have tried to use GetSafeHwnd() instead, and pass it to the a global variable type of HWND. It works for now.

Smile | :)

Custom make under Visual Studio

Dmitry Nev4-Oct-02 22:04

Dmitry Nev

4-Oct-02 22:04

Hi everybody!

Does anyone know how to easily attach my own build routine to MSVS?
Consider I have a makefile for external compiler/linker (Watcom C++ 11.0).
Where should I place command "wmake.exe" (or a batch file that starts external compiler) to make all the stuff work?

Thanks.

Re: Custom make under Visual Studio

Anonymous4-Oct-02 23:32

Anonymous

4-Oct-02 23:32

Open that make file in MS VC IDE. Then complie it. It will automatically create the work space from the make file.

Static_cast

suresh_sathya4-Oct-02 20:34

suresh_sathya

4-Oct-02 20:34

When i should go for static_cast and when should i use reinterpret_cast

Re: Static_cast

Roman Stefanov4-Oct-02 20:56

Roman Stefanov

4-Oct-02 20:56

try this:
http://msdn.microsoft.com/library/en-us/dndeepc/html/deep05182000.asp

Re: Static_cast

Nish Nishant4-Oct-02 22:12

Nish Nishant

4-Oct-02 22:12

suresh_sathya wrote:
When i should go for static_cast and when should i use reinterpret_cast

Hi Suresh,

See my article on C++ casts :-

http://www.codeproject.com/managedcpp/castingbasics.asp

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Force delete files (ie. .dat)

TigerNinja_4-Oct-02 19:52

TigerNinja_

4-Oct-02 19:52

Hi all,
How can one programatically, preferably WinAPI function, delete files regardless if Windows want you to or not?

For example, in "Temporary Internet Files" , Windows won't allow me to delete the index.dat file even after I close IE and all other programs. The error I get is the file is either protected or in use.

This is the function I used to try to delete it:
DeleteFile((LPCTSTR)m_szFile);

Thanks in advance.

Soliant | email

"During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software.
" - Alex E.

Re: Force delete files (ie. .dat)

Pavel Klocek4-Oct-02 21:20

Pavel Klocek

4-Oct-02 21:20

Maybe this[^] can help.

Pavel
Sonork 100.15206

Re: Force delete files (ie. .dat)

Dominik Reichl5-Oct-02 2:51

Dominik Reichl

5-Oct-02 2:51

http://anticrack.p15106404.pureserver.info/modules.php?op=modload&name=News&file=article&sid=3196&mode=&order=0&thold=0[^]

This is an excellent article about how to delete files which are currently in use or are protected. Have a look at it!

Big Grin | :-D

-Dominik

Re: Force delete files (ie. .dat)

TigerNinja_5-Oct-02 5:13

TigerNinja_

5-Oct-02 5:13

Thanks guys!

I thought that I might have to tap into assembly, it seems that is the case. I don't think I can go any lower than that, or else I would be tweaking the hardware for the CPU - ouch OMG | :OMG:

Soliant | email

"During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software.
" - Alex E.

Active Script Debugging API

Roman Stefanov4-Oct-02 19:25

Roman Stefanov

4-Oct-02 19:25

Does anybody know where I can find documentation
about Active Script Debugging API ?

itoa crash when steppping through

nss4-Oct-02 19:00

nss

4-Oct-02 19:00

This is weird. It doesnt crash when run. But with breakpoints, it crashes at the itoa: (unhandled exception

        int headingWidth;

char * chheadingWidth ;

headingWidth = gvecSortFields[0].GetLength() * 3;  //getlength() returns 10

itoa(headingWidth, chheadingWidth,10);

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