C / C++ / MFC Discussion Boards

nenfa5-Feb-10 16:00

5-Feb-10 16:00

I sent the LVM_SETITEMPOSITION msg to the desktop icons' ListView, and the specified item changed the position, but I press 'F5' for refurbishing the desktop, its position had restore, why, why, i'm mad. Sigh | :sigh:

Re: it's so complex for me, i'm mad

Richard MacCutchan5-Feb-10 21:46

Richard MacCutchan

5-Feb-10 21:46

The desktop is controlled by Windows, so I assume that when you press F5 it resets itself to its default settings.

MVP 2010 - are they mad?

win32 timer

zaftblitz5-Feb-10 15:39

zaftblitz

5-Feb-10 15:39

can i ask, why nothing happen when i call SetTimer function.

#define ID_TIMER1 101

void CSample_API_AppDlg::OnGetImage()
{
SetTimer(ID_TIMER1,500,NULL);
}

void CSample_API_AppDlg::OnTimer(UINT nIDEvent)
{
switch(nIDEvent)
{
case ID_TIMER1:
int width, height;
unsigned char *image = (unsigned char *)malloc(320*240*3);

RR_API rr;
rr.open("c:\\www\\Program File\\RoboRealm\\RoboRealm.exe",6060);

if (!rr.connect("localhost"))
{
printf("RoboRealm does not appear to be running.\nPlease run RoboRealm and try again.");
exit(0);
}

if (hBitmap) DeleteObject(hBitmap);

hBitmap = rr.getBitmap("processed", image, &width, &height, 320*240*3);

imageCtl.SetBitmap(hBitmap);

rr.disconnect();

free(image);
break;
}
CDialog::OnTimer(nIDEvent);
}

Re: win32 timer

Richard MacCutchan5-Feb-10 21:43

Richard MacCutchan

5-Feb-10 21:43

You could start by placing your code between <pre></pre> tags as described in point 7 here[^]. I also notice that you have a printf() and an exit() call within your timer event. Neither of these belong in a Dialog, I suggest you reread the MSDN section on Dialog Box Programming[^].

MVP 2010 - are they mad?

Re: win32 timer

Gary R. Wheeler6-Feb-10 0:15

Gary R. Wheeler

6-Feb-10 0:15

You also need an ON_WM_TIMER() entry in the message map for your dialog.

Software Zen: delete this;
Fold With Us![^]

Re: win32 timer

zaftblitz6-Feb-10 6:17

zaftblitz

6-Feb-10 6:17

what do you mean by "ON_WM_TIMER()". where must i put that. I'm a little bit blur

Re: win32 timer

Hristo-Bojilov6-Feb-10 6:54

Hristo-Bojilov

6-Feb-10 6:54

You may need to add to your dialog/view message map like the sample bellow. Smile | :)

BEGIN_MESSAGE_MAP(CYourAppDlg, CDialog)


      .......................
	ON_WM_TIMER()
END_MESSAGE_MAP()

Life is a stage and we are all actors!

Re: win32 timer

zaftblitz6-Feb-10 16:59

zaftblitz

6-Feb-10 16:59

thanks

Combo box Dropdown length

Donguy19765-Feb-10 14:17

Donguy1976

5-Feb-10 14:17

Hello

I am working on C++ using Win32 API’s in Visual Studio 2008 environment, and am using almost all standard Windows controls
that’s available.

In the application there’s a Combo box that will show multiple items and have a horizontal and vertical scroll bar.

There is an option for user, by which the user can choose the number of items shown in combo box.

The combo box works fine when there more than 2 items to show, the scroll bars work fine.

But when there’s only one item to show in combo box, the vertical scroll bar is very small. That is, the drop down of the
combo box is not long enough to have a longer vertical scroll bar.

That looks like the standard behavior of Windows combo box. But the application that am working on is
used in a touch screen monitor.

So the problem with a small vertical scroll bar is that, user will not have enough space to touch and scroll.

The issue is more complicated is because, the 1st item in the combo box is always a empty string item. This is to make
sure that there’s no default selection in combo box.

So anyone has any idea how to have a longer drop down for a combo box with fewer items to display?

So that the vertical scroll bar is longer.

Is there a way of overriding Windows Combo box function?

Like doing a SubclassDlgItem() or some other function?

Thanks in advance.

Re: Combo box Dropdown length

Richard MacCutchan6-Feb-10 0:01

Richard MacCutchan

6-Feb-10 0:01

You need to set the height value of your ComboBox as described in MSDN[^].

MVP 2010 - are they mad?

Re: Combo box Dropdown length

Donguy19766-Feb-10 3:44

Donguy1976

6-Feb-10 3:44

Are you sure this will fix the problem?

Because i think it will over all increase the height of combo box, rather than increasing the drop down.

Can you please explain?

Re: Combo box Dropdown length

Richard MacCutchan6-Feb-10 5:31

Richard MacCutchan

6-Feb-10 5:31

Donguy1976 wrote:
Are you sure this will fix the problem?

What happens when you try it?

MVP 2010 - are they mad?

Any common multi-threaded smart pointer implementations that exist?

Cyrilix5-Feb-10 11:30

Cyrilix

5-Feb-10 11:30

So, boost is a great library that has a lot of neat stuff, but I'm looking specifically for a multi-threaded smart pointer implementation, one that can even be as simple (it doesn't need to be blazing fast) as "lock, increment/decrement count, release", which seems like it would be easy to do. Smart pointers can be tricky though, so I'd like to find a good common implementation before giving up and doing something homebrew. Any ideas?

MFC ODBC Consumer Wizard Problem

cfilorux5-Feb-10 9:02

cfilorux

5-Feb-10 9:02

I'm Hoping someone here can help with a MFC ODBC Consumer Wizard Problem I am having.

Basically I am getting all the way through the various steps and failing on the last 'Finish' step with the Error Message: 'Could Not Create Session On Data Source'

I Know the ODBC Connection definition is working for two reasons:

A) I am able to connect to the database using it with the CDatabase Class in my forms program and select records.

B) The ODBC Consumer Wizard is also initialy able to connect to it as it is giving me a list of tables from which to create the class from during the Select Database Object Step
( Link to pic of Select Database Object step http://tinypic.com/view.php?pic=osx2io&s=6[^] )

So after going through all the steps, Selecting the Orders table, The Wizard fills
The appropiate filename fields as expected and then I press Finish and get the Error:
'Could Not Create Session On Data Source'
(Link to picture of Error http://tinypic.com/view.php?pic=sg3fch&s=6[^] )

This is the really puzzling bit, Because it has already created a session to enable it
to ask what database object I require ?! So why should it fail with that message ?

List of my Setup
VS2008
VC++ MFC Forms program
SQLExpress 2005
Windows Vista

I have managed to get the ODBC Consumer Wizard to work fine with a Text File Driver.

Anyone got any ideas ?

Many many thanks in advance for any help and advice, I'm really stuck on this one.

No Answers ?! what did I do Wrong ?

cfilorux17-Feb-10 11:58

cfilorux

17-Feb-10 11:58

Hi there, me again.....

So I got zero answers and the question has dropped to page 15 already.

My Guess is that this problem will not ellicit any help/Suggestions from the knowledgable people on this board.

Seems like 90% of the questions on here get some response, And half of those that
don't are due to total vagueness of question.

So where did I go wrong ?

Is the subject just to obscure ?
Did I paraphrase the problem with insufficient info ?
Or in the infamous words of Ali G "Is it coz I am black ?" ( oh no ! (old) humour )

Anyway, A glass or two of wine later I thought I'd appeal to the old hands on here to
point out to me why I failed to garner any response my little problemette.

3 or 4 glasses later I could ramble on about how simple database access was for a
a C/unix program/platform in the 1990's, all you had to to was EXEC SQL INCLUDE SQLCA and you were away with the pixies Confused | :confused:

20 years and several PC's Later, Bill Gates has 'depreciated' Embedded SQL Cry | :((

for VC++

'Progress' is binding your own variables and beating the conection parameters into a
resentful subservience akin to taming a rabid alzheimers afflicted dog apparently.

Excuse me, just venting into the void

How to develop tab control dialog in MFC using MS SSTab

Vaclav_5-Feb-10 8:44

Vaclav_

5-Feb-10 8:44

I think in VB one can group bunch of   controls and move them as such.
I am struggling with MS SSTab control.   I would like to build my tabs as a group and then move them (MoveWindow) into correct place also as a group.
So far I am doing   it individually which is a pain.
Actually it would be nice to develop the group as a separate dialog and then "paste" it into correct place at run time.
Any constructive suggestion is as always appreciated.
Thanks
Vaclav

Re: How to develop tab control dialog in MFC using MS SSTab

cfilorux11-Feb-10 2:38

cfilorux

11-Feb-10 2:38

I used Derek Lakin's CTabCtrlSSL ( found Here CTabCtrlSSL - An easy to use, flexible extended tab control )

Just create a Dialog,
place the controls on it,
then a line or two of code in the main Dialogs OnInitDialog()

And hey presto.

a Very good control, does what it says on the tin

A Basic iButton Interface By Marc Clifton

elchino20105-Feb-10 6:57

elchino2010

5-Feb-10 6:57

Hi there,
Have anyone been able to compile this project.

http://www.codeproject.com/KB/cpp/ibuttoninterface.aspx

I tried with no success.
Maybe someone has a working compilation they can send me.
any comments appreciated.
thanks

Re: A Basic iButton Interface By Marc Clifton

Iain Clarke, Warrior Programmer5-Feb-10 7:01

Iain Clarke, Warrior Programmer

5-Feb-10 7:01

Well, what did the author have to say when you posted this question on the forum attached to the article?

Iain.

Maybe this link will help:
http://www.codeproject.com/Messages/439771/Re-Another-great-article.aspx[^]

I have now moved to Sweden for love (awwww).

Re: A Basic iButton Interface By Marc Clifton [modified]

elchino20105-Feb-10 8:34

elchino2010

5-Feb-10 8:34

He said:

thanks for the link.

modified on Friday, February 5, 2010 4:29 PM

Re: A Basic iButton Interface By Marc Clifton

Maximilien5-Feb-10 7:19

Maximilien

5-Feb-10 7:19

I tried with VS2010 (the beta one) and got it to compile by changing #define values in stdafx.h :

This is what I use :

#ifndef WINVER                          // Specifies that the minimum required platform is Windows Vista.
#define WINVER 0x0600           // Change this to the appropriate value to target other versions of Windows.
#endif

#ifndef _WIN32_WINNT            // Specifies that the minimum required platform is Windows Vista.
#define _WIN32_WINNT 0x0600     // Change this to the appropriate value to target other versions of Windows.
#endif

#ifndef _WIN32_WINDOWS          // Specifies that the minimum required platform is Windows 98.
#define _WIN32_WINDOWS 0x0410 // Change this to the appropriate value to target Windows Me or later.
#endif

#ifndef _WIN32_IE                       // Specifies that the minimum required platform is Internet Explorer 7.0.
#define _WIN32_IE 0x0700        // Change this to the appropriate value to target other versions of IE.
#endif

it compiles and runs, but there's a "Session" problem.

This signature was proudly tested on animals.

Re: A Basic iButton Interface By Marc Clifton

elchino20105-Feb-10 10:29

elchino2010

5-Feb-10 10:29

thank you.
I will try that.

Re-direction on VS Visual Studio

ForNow5-Feb-10 6:22

ForNow

5-Feb-10 6:22

Can I and if I can do re-direction (>) in Visual Studio Debugging....

Would I type in the Command Line on Property Page e.g myprog.exe > outlist.txt

or Would be in Command Arguments

Thankx

Re: Re-direction on VS Visual Studio

Stuart Dootson5-Feb-10 9:50

Stuart Dootson

5-Feb-10 9:50

Yes you can - look at the documentation[^]...

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

Re: Re-direction on VS Visual Studio

ForNow5-Feb-10 10:38

ForNow

5-Feb-10 10:38

thankx

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