C / C++ / MFC

Mark Salsbery16-Nov-07 5:56

16-Nov-07 5:56

Jarrah_12 wrote:
1) How i prevent this child to be created ?

INFO: Stopping MFC/MDI from Creating New MDI Child Window On Startup[^]

Child dialogs can be created using the CDialog class and it's Create()/CreateIndirect()/DoModal()
methods.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Jarrah_1216-Nov-07 9:08

Jarrah_12

16-Nov-07 9:08

Dear Mark , thanks for the answer. But for the CDialog if I create it ,it appears out side the MDI ,Sir my Idea was to make a project of simple accounts proccessing program so I need a Main Window of my application and when the user choose a function a child window within my application initiated , what do you recommend SDI or MDI ? . and how to create a child window with my specific controls? .

Thanx for your time .

Regards,

j. a.

Mark Salsbery16-Nov-07 9:15

16-Nov-07 9:15

Jarrah_12 wrote:
But for the CDialog if I create it it appears out side the MDI I want it inside it like MDI child

Then you could use a CMDIChildWnd with a CFormView client.

Or, derive a class from CMDIChildWnd, override OnCreateClient(), and in
the override, create a client window which is a modeless dialog.

The point is, a CMDIChildWnd is the type window you want to use as an MDI
child window.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Maximilien16-Nov-07 9:14

Maximilien

16-Nov-07 9:14

Well, you could use a CFormView instead of a CDialog inside your MDI project.

Or you can simply usr a SDI project with a CFormView or more simple just use a CDialog as your project type.

Without more details, we cannot help you much; if you want to break the Doc/View architecture, be ready to do a lot of work by yourself.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Jarrah_1216-Nov-07 10:05

Jarrah_12

16-Nov-07 10:05

Thanks guys , I got your Idea Im ready to do my project wish me good luck.

Best regards,

J. a.

Nelek18-Nov-07 22:03

Nelek

18-Nov-07 22:03

or you can use a mix of all (as I did)

if you need to mix view types and have more than one view (they have more functionality than dialogs) in your app, take a look into this message[^] and follow the links; i explained how to do it in different places.

Greetings.

--------
M.D.V. Wink | ;)

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
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson

application crash

satyanarayana dasari16-Nov-07 5:16

satyanarayana dasari

16-Nov-07 5:16

draw and drop operation in a tree control leads to the crash of the application. Please can anyone help me.

Thanks in Advance

satyanarayana

You're an unlucky boy!

CPallini16-Nov-07 5:33

CPallini

16-Nov-07 5:33

(i.e. maximumu help I can afford with the info you gave me)
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

David Crow16-Nov-07 5:38

David Crow

16-Nov-07 5:38

Where is the crash located?

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

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

Chris Meech16-Nov-07 10:35

Chris Meech

16-Nov-07 10:35

I think he hit a tree. Poke tongue | ;-P

Chris Meech
I am Canadian. [heard in a local bar]
Donate to help Conquer Cancer[^]

chandu00416-Nov-07 21:13

chandu004

16-Nov-07 21:13

he would have used his helmet or seatbelt atleast.;P

Hamid_RT16-Nov-07 7:02

Hamid_RT

16-Nov-07 7:02

Can you show code that it makes error?

port connection

Wamuti16-Nov-07 4:44

16-Nov-07 4:44

Hi guys. I am using the function

void CPortConnectDlg::OnBsend3()
{
_outp(0x378,0x3); //The function to connect to the port

}
When i compile the project, it has no error but, when i try to send the data to the parallel port, it is not working, instead, windows gives me an error i can't really understand. Please can anyone help me.

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

Mark Salsbery16-Nov-07 5:05

16-Nov-07 5:05

What Windows version? Maybe this will help....

"Because these functions write directly to an I/O port, they cannot be used in user code in Windows NT,
Windows 2000, Windows XP, and Windows Server 2003. For information about using I/O ports in these
operating systems, search for "Serial Communications in Win32" at MSDN."

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Wamuti16-Nov-07 5:21

16-Nov-07 5:21

Mark Salsbery wrote:
What Windows version

I am using windows XP and 2000 interchangable

Mark Salsbery wrote:
For information about using I/O ports in these
operating systems, search for "Serial Communications in Win32" at MSDN."

Does this mean that i have to send the message using serial port and not Parellel ports? If so, please offer some advice since i really needed to connect to the printer(parallel port).

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

Mark Salsbery16-Nov-07 5:32

16-Nov-07 5:32

Wamuti wrote:
Does this mean that i have to send the message using serial port and not Parellel ports?

No.

It means a long time ago, direct hardware access was no longer allowed by the operating system.

Maybe check this out: Code Project Parallel Port Articles (C++/MFC)[^]

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Wamuti16-Nov-07 5:41

16-Nov-07 5:41

Thanks. I am going through it right now.

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

led mike16-Nov-07 5:08

led mike

16-Nov-07 5:08

Wamuti wrote:
windows gives me an error i can't really understand.

Well certainly someone here can understand it, especially if you don't post it because it's easier to understand if you can't see it Laugh | :laugh:

Wamuti16-Nov-07 5:26

16-Nov-07 5:26

:-> Sorry for that,The error is
"The exception Privileged instruction.
(0xc0000096) occured in the application at location 0x1022cc4b"

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

David Crow16-Nov-07 5:44

David Crow

16-Nov-07 5:44

Wamuti wrote:
...it is not working, instead, windows gives me an error...

That's because Windows' HAL is prohibiting direct access to the port from user-mode code.

Wamuti16-Nov-07 5:54

16-Nov-07 5:54

DavidCrow wrote:
...That's because Windows' HAL...

What is windows HAL?

DavidCrow wrote:
...is prohibiting direct access to the port from user-mode code.

What can i do about it. I was reading this code from codeproject http://www.codeproject.com/system/AsefPortAccess.asp[^]

but the source code is also giving me the same error.(Ofcourse i can trouble the author with lots of questions;)) Please help

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.