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I've posted a reply to Toni78 which you should read[^].
Iain.
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I have a dialog that I am going to transfer data from. When I have all of the edit boxes up and I run - no problem.
When I add up to 10 member variables (double and int total equal 10) I have no problem.
When I go past that small number of member variables I get this error?
MYSOURCE caused an invalid page fault in<br />
module KERNEL32.DLL at 0167:bff766bc.<br />
Registers:<br />
EAX=00550028 CS=0167 EIP=bff766bc EFLGS=00210246<br />
EBX=00000001 SS=016f ESP=00550000 EBP=00550010<br />
ECX=00550110 DS=016f ESI=817df560 FS=328f<br />
EDX=0055045c ES=016f EDI=00550028 GS=0000<br />
Bytes at CS:EIP:<br />
e8 13 ad ff ff 8b 55 08 8f 82 b0 00 00 00 8b 4d <br />
Stack dump:<br />
002a0014 00000000 00550028 00000000 005500f8 bff76733 00550028 005500f8 00000004 00550194 ffffffff 00000000 00000000 00000000 00000000 00000000
Right now, when I am setting the member variable and doing nothing else I get this error. Pushing the button the main dialog causes this window in question to popup. Then closing this window makes a list ctrl fill up in the main window. When the error takes place it looks like the list ctrl is trying to load, but it gives me the erroe before any data is on the screen?
Any suggestions are welcome!
I wish I could type better ...
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I am kind of confused, so here are a few questions:
Are you able to pinpoint the exact line in your source code that leads you this error? (that would really help)
When you say that you cannot have more than 10 member variables, do you mean that you can have more than 10 edit controls on your dialog box but you can assign variables to only 10 of them?
To me is sounds more like you are trying to access something that you haven't initialized yet. A common error, is trying to read or send data to a control of a window that hasn't been created yet.
And finally (even though this doesn't seem to be the problem in your case) if you have visual studio 6.0 installed, make sure you have SP5 installed as well.
// Afterall, I realized that even my comment lines have bugs
When one cannot invent, one must at least improve (in bed).-My latest fortune cookie
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For some reason the wizard wasn't defining the type of variables? Anyway, I put them in by hand and it works now. Thanks
I wish I could type better ...
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You don't have to thank me. I didn't really get to help you. 
// Afterall, I realized that even my comment lines have bugs
When one cannot invent, one must at least improve (in bed).-My latest fortune cookie
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I think like Toni78 (e.g. example of source code, assign variables)
I think the edit boxes aren't the problem, because in the past i have programmed a dialog with more than 100 edit boxes ... and Win95, Win98, WinME can support a maximum of 16.364 window handles. Other operating systems (NT4, 2000, XP) can support more.
Regards Frank
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how do i plot the values i accpet in the dialog box on the view.i want to plot a point at the coordinates that i accpet from the dialog box.
i donno VC++ so please help!
Every problem has a solution!
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In your dialog create a Data Map to exchange data from your dialog to your dialog class (if you use the app wizard this is done automatically, otherwize you should implement the DoDataExchange() method).
after doing that, derive your view class from CView and override OnPaint(). In the OnPaint, use pDC->MoveTo() and pDC->LineT0() to move around and draw lines.
good luck!
A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.
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sir,
i m at msc.final sem, an intrested dev & des a mpeg1 player. i made one by using directshow. i need 2 sep A/V & extract indv frames. how can i? plz send me som src code, becaz i m a newbe for directx. i need to subm this at my col as an assi. i m very much  abt that. plz help me.
Ram
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Hi All,
I am new to this site. And need help badly.
I want to Create and access Database(MSAccess) from Windows programming. Can someone please direct me .
Thanks
Valli
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PJ Arends
Thank you soo much for your help.
Regards
Valli
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Hi
I just switched from Visual C++ 6 to Visual C++ .NET and converted my old project (.dws) to a solution. Now, when I try to compile my program I get compiler errors I didn't get under VC++6:
CStringArray status;
status.Add("test");
...
cbei.pszText = status.GetAt(0).GetBuffer();
error:
error C2663: 'ATL::CSimpleStringT<BaseType,t_bMFCDLL>::GetBuffer' : 2 overloads have no legal conversion for 'this' pointer
with
[
BaseType=char,
t_bMFCDLL=true
]
what does that mean? 
regards
modified 12-Sep-18 21:01pm.
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What is cbei.pszText?
- Anders
Money talks, but all mine ever says is "Goodbye!"
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It's a COMBOBOXEXITEM struct.
modified 12-Sep-18 21:01pm.
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Call GetBuffer(0) which will give you a non-const pointer to whatever the current contents of the string are.
--Mike--
"Big handwavy generalizations made from a position of deep ignorance is one of the biggest wastes of time on the net today.
-- Joel Spolsky
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
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I still get the same error. I can't understand what an error regarding 'ATL::CSimpleStringT<BaseType,t_bMFCDLL>::GetBuffer' : 2 overloads have no legal conversion for 'this' pointer has to do in context of a simple CStringArray
modified 12-Sep-18 21:01pm.
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How do i get a handle to the child edit window that currently has the focus (in another app)?
Kuniva
--------------------------------------------
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GetForegroundWindow() should work for most controls.
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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mm i thought that only got the parent window, but anyways, found a way around it already using keybd_event().
But now i came accross another problem: I'm trying to put text in the edit that has the focus using keybd_event() and sending the keycodes. I'm running XP and i'm doing something like this:
char* message = Hello!";
BYTE scan=0;
DWORD flags=0,info=0;
Sleep(5000); // Sleep for 5 seconds so i can switch windows and set focus to an edit
for(int i=0;i<sizeof(message);i++)
{
keybd_event((int)message[i],scan,flags,info);
}
Now the problem is that i don't get my message at all. Its like the codes shift and take on another value. So what i tried was changing the value of message[i] with a constant. I then found when i substracted 32 i got the lowercase letters to work right, but now my problem is, everything else still doesnt work! The capitals arent right and neither is anything else.. whats causing this?? I thought if u specify a char like that it gives the value from 0 to 255 and its the right ASCII code?? How do i fix this?
Many thanks
Kuniva
--------------------------------------------
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Kuniva wrote:
I thought if u specify a char like that it gives the value from 0 to 255 and its the right ASCII code??
No. keybd_event() takes the virtual-key code of the key. On a keyboard, the lower-case and upper-case letters are produced with the same key. To produce an upper-case key, you have to simulate the shift key being pressed as well. Similarly for an exclamation mark (shift-1). Also, you'll need to simulate the keys being released as well as pressed. You'll have to do something like this:
keybd_event(VK_SHIFT, 0, 0);
keybd_event('H', 0, 0);
keybd_event('H', 0, KEYEVENTF_KEYUP);
keybd_event(VK_SHIFT, 0, KEYEVENTF_KEYUP);
keybd_event('E', 0, 0);
keybd_event('E', 0, KEYEVENTF_KEYUP);
keybd_event('L', 0, 0);
keybd_event('L', 0, KEYEVENTF_KEYUP);
keybd_event('L', 0, 0);
keybd_event('L', 0, KEYEVENTF_KEYUP);
keybd_event('O', 0, 0);
keybd_event('O', 0, KEYEVENTF_KEYUP);
keybd_event(VK_SHIFT, 0, 0);
keybd_event('1', 0, 0);
keybd_event('1', 0, KEYEVENTF_KEYUP);
keybd_event(VK_SHIFT, 0, KEYEVENTF_KEYUP); Hope this helps,
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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I want to use a SDI project that's derived from the CTreeView class. However, I have some code and specialty functions in a couple of classes already derived from CTreeCtrl. Is it possible to link the CTreeView in the SDI to my classes or derive it's tree control from the classes I have? 
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No. It's going to take some work. I would recommend that you look on CodeGuru as Zafir wrote some articles on doing this sort of thing a few years ago. Try the treeview section. If that doesn't work, I know he did it in the listview section. That will just mean more work in terms of figuring out how to make it work for the treeview.
Cheers,
Tom Archer
Inside C#,
Extending MFC Applications with the .NET Framework
It's better to listen to others than to speak, because I already know what I'm going to say anyway. - friend of Jörgen Sigvardsson
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Maybe it would be easier to put your CTreeCtrl-derived control on a CFormWnd derived class and have it resize the CTreeCtrl to fill the FormWnd completely?
My opinions may have changed, but not the fact that I am right.
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How would one go about doing that? 
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