C / C++ / MFC

31-Jan-02 4:41

Hi,

I would like that in my property page when the user presses over the last tab order control, it jumps to the first tab order contol, not to the tab header, is that possible ?

Thanks, Bye !
Braulio

Joaquín M López Muñoz31-Jan-02 5:00

31-Jan-02 5:00

I'm not getting what you mean to do? Is it some sort of "circular" property sheet what you're trying to achieve?

PS: Si quieres nos entendemos en español, mucho más fácil Smile | :)

, aunque no sé si otra gente aquí se lo tomará a mal.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Braulio Dez31-Jan-02 5:16

31-Jan-02 5:16

Hola !

HE he, si creo que si nos ponemos a hablar en Español igual Nish o otro se cabrean Smile | :)

, así que aquí va mi inglés potajero... Wink | ;-)

Yes, the thing is that I have a system made to update data automatically when you press tab or whatever

http://www.codeproject.com/dialog/killfocus.asp

It saved me a lot of boring work, ... but... If I use that on a Non modal Property Page I got a problem... when you press tab on the last control the focus goes to the parent and I cannot distinguish very well the event that happened, the good thing would be that it goes again to the first tab order control again.

Is there some possibility to do that ?

Gracias Joaquin !

Braulio

Joaquín M López Muñoz31-Jan-02 5:32

31-Jan-02 5:32

I must confess I've not completely caught your point, so I will guess anyway Smile | :)

So your problem is that your property page loses control when the user press on the tab (control is taken over by the property sheet) and you'd like the property page to have an opportunity to retain control? If so, today some folks have had a similar discussion here, and seems like WM_NCACTIVATE is the message you should handle on your propery pages to determine when control goes elsewhere.

Hope it helps. Don't mind asking again if this is not what you were after.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Braulio Dez31-Jan-02 5:44

31-Jan-02 5:44

Thanks !,

I´m gonna try the OnActive thing, but I would like to do it generic, do you know anyway to get the first control that have a tab stop ? ( just a function named like... "FirstTabOrderCtrl()" or something like that Smile | :)

Thanks again, Bye !
Braulio

Joaquín M López Muñoz31-Jan-02 6:12

31-Jan-02 6:12

You know what? Seems like calling SetFocus on the property page itself yields control to its first control (with respect to tab order). At least I've just tried it with a CDialog and it works.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Braulio Dez31-Jan-02 6:22

HLVDD.DLL hardlock virtual device failed initialization

31-Jan-02 6:22

Thanks good tip !

The only problem is that OnActive is not called when the user presses the tab because it already has the focus ( crazy stuff... ).

Hasta luego Joaquin !, me rindo por hoy mañana me pondré de nuevo, con la cabeza más fresca Smile | :)

Un saludo
Braulio

RobJones31-Jan-02 4:40

RobJones

31-Jan-02 4:40

Has anyone seen this error under windows xp before? I have a very simple application using a list control.. when the app is first launched I get the error "HLVDD.DLL hardlock virtual device failed initialization" What is this?

Thanks,

Rob

Re: anyone knows this error?

C^hris L^osinger31-Jan-02 4:37

C^hris L^osinger

31-Jan-02 4:37

marouane miftah el kheir wrote:
how do i fix it?

don't use the same name for two different classes.

-c

Smaller Animals Software, Inc.

Re: anyone knows this error?

Alvaro Mendez31-Jan-02 5:00

Alvaro Mendez

31-Jan-02 5:00

1. Make sure the class is only defined in one place (header file).
2. Make sure the contents of the header file are only included once. Use guard macros to prevent that:

#ifndef __STOCK_H__
#define __STOCK_H__
 
class Stock
{
...
};
 
#endif // __STOCK_H__

Regards,
Alvaro

C and Visual C++

aleyah31-Jan-02 3:59

31-Jan-02 3:59

Hello..
I want to know something! In Visual C++ also can use C code, but can or not C code in same project call C++ function??
like this, my C code is in what.c and I want to call function in loginDlg.C++, the function name is CLoginDLg...
i try do this in file what.c
CLoginDlg dlg;
dlg.DoModal();

but this error appear when i compile it
error C2065: 'CLoginDlg' : undeclared identifier
error C2146: syntax error : missing ';' before identifier 'dlg'
error C2065: 'dlg' : undeclared identifier
error C2224: left of '.DoModal' must have struct/union type
anybody can help me.. or i do wrong!!??

Simon Walton31-Jan-02 4:43

Simon Walton

31-Jan-02 4:43

If you post some code perhaps we can help you. Smile | :)

Simon
C++: Only friends can see your private parts.
Sonork ID 100.10024

aleyah31-Jan-02 4:59

31-Jan-02 4:59

where to i post my code in this forum??

Alvaro Mendez31-Jan-02 5:05

Alvaro Mendez

31-Jan-02 5:05

You can't call C++ code from C the way you're trying it. CLoginDlg is a class which C does not recognize.

What you can do is wrap that code inside a global "C"-style function inside your C++ file:

extern "C" void OpenLoginDlg()
{
   CLoginDlg dlg;
   dlg.DoModal();
}

Then you can call OpenLoginDlg in your C code.

Regards,
Alvaro

aleyah31-Jan-02 5:20

31-Jan-02 5:20

never mind for login dialog...
but i want you to solve this problem... because this i my main problem........

this is my C code
case IDC_OK:
database db; //this i call function from c++ file
db.Open(CRecordset::dynaset,"password);
while(!db.IsEOF())
{
if(db.m_userID == IDC_USER_NAME)
{
if(db.m_password == IDC_PASSWORD)
{
ShellExecute (NULL, "open", "d:\\games\\Same.exe",NULL,NULL,SW_SHOWNA);
exit(0);
}
else
{
AfxMessageBox("Incorrect password!");
m_word="";
UpdateData(false);
return;
}
}
loginConn.MoveNext();
}

but this error appear
error C2065: 'database' : undeclared identifier
error C2146: syntax error : missing ';' before identifier 'db'
error C2065: 'db' : undeclared identifier
error C2224: left of '.Open' must have struct/union typeerror C2065: 'CRecordset' : undeclared identifier
error C2143: syntax error : missing ')' before ':'

aleyah31-Jan-02 5:38

31-Jan-02 5:38

anyone can help me!!!!

Joaquín M López Muñoz31-Jan-02 6:03

31-Jan-02 6:03

Do not panic Smile | :)

Try this:

close all open files in your Visual Studio, delete your .c files from the project, go to the Windows Explorer, locate those files, change the extension to .cpp and add them back to the project. Now, hopefully, your formerly C modules are C++.
whenever you get some "undeclared identifier" compiler error, try to locate the .h header file for the class you're trying to use and insert the corresponding #include.

With a little luck, this will help you advance a little further.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo