C / C++ / MFC

1-Aug-07 1:34

My mainframe window did not get closed when i click close button.
Even i have OnClose() function in my Mainfrm class.
Whats the problem?

Anu

Randor 1-Aug-07 2:37

Randor

1-Aug-07 2:37

0xC0DEDBAD

David Crow1-Aug-07 2:58

David Crow

1-Aug-07 2:58

Anu_Bala wrote:
Even i have OnClose() function in my Mainfrm class.

And what is it doing?

"A good athlete is the result of a good and worthy opponent." - David Crow

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

Anu_Bala1-Aug-07 18:20

1-Aug-07 18:20

Yes, Thts my doubt.
My window does not get closed. When i have break point in my OnClose(),when debugging does not got that break point.
Now im closing my application by having short cut keys(ctrl + del)I set keys like that to close the window.But i have to close by clicking close button..

Anu

High performance mathematics libraries.

David Crow2-Aug-07 2:41

David Crow

2-Aug-07 2:41

Anu_Bala wrote:
When i have break point in my OnClose()...

What does this function look like?

"A good athlete is the result of a good and worthy opponent." - David Crow

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

Shashi.Shinde1-Aug-07 1:22

Shashi.Shinde

1-Aug-07 1:22

Hello friends,

I’m going to develop some application using C++, Linux platform. I need information about mathematics libraries which have following features –

1) Matrix manipulation –
a) It should support Matrix multiplication, Inverse, Transpose, etc functionality on large data set say 1 million rows and columns.
b) Finding Min or Max element by row or column.

2) Providing sort function which would sort matrix.

3) Algorithm used for sorting of matrix is most important because as per my knowledge Heap sort gives the best performance over larger dataset.

4) Any functionality to sort a data set which accepts a row / column from a matrix. i.e. Sorting function receives row / column of a matrix as parameter & returns sorted set of elements or sorted set of indices of that matrix.

Thnx & regards,

Shashikant

Re: High performance mathematics libraries.

toxcct1-Aug-07 2:17

toxcct

1-Aug-07 2:17

check this[^] matrix class

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: High performance mathematics libraries.

Randor 1-Aug-07 2:46

Randor

1-Aug-07 2:46

I recommend using Boost matrix: http://www.boost.org/libs/numeric/ublas/doc/matrix.htm[^]

-Randor (David Delaune)

Get Window Handle

baerten1-Aug-07 1:12

baerten

1-Aug-07 1:12

Hi everybody,

i use the SourceForge Project "Console", it's an application which starts new processes and
"redirect the display of the startet programm into a view"

Keystrokes were send via Message WM_KEYDOWN, that works fine.
I need to start my own Win32-DOS-Application into this application, but the Mouse-clicks
won't work ( even if i send the correct messages )

I found a strange solution: i send a Key "46" to the DOS-application there in, the Key-Code 46
performs a simulated Mouse-Click via CURSES.

It also works, but i need to specify the coordinates of the click.
Therefor i need GetWindowRect, to determine where the DOS-Applic is ...

In a normal DOS Application i get the Window-Handle via FindWindow for example, which works
But in the Console-Project, the process runs "without a Frame/ConsoleFrame"

Big big thanks for any help Smile | :)

Re: Get Window Handle

Abdellatif_El_Khlifi12-Aug-07 16:18

Abdellatif_El_Khlifi

12-Aug-07 16:18

You can install a message hook which is able to catch mouse messages and consequently mouse coordinates.

int,long

nitin31-Aug-07 1:02

nitin3

1-Aug-07 1:02

hai,

any one pls tell me, is ther any difference in range of value can be stored the following two variables..

int a ;
long b ;

Re: int,long [modified]

Anurag Gandhi1-Aug-07 1:14

Anurag Gandhi

1-Aug-07 1:14

Ya,
int data type can store 4 bytes of integer, i.e, 2^32 = 4294967296 numbers. half of it +ve and half of it -ve.

long data type can store 8 bytes of integer, i.e, 2^64 = 18446744073709551616 numbers. half of it +ve and half of it -ve.

That's it.

After modification:

I mean to say that Range for int is: -(2^32)/2 to +(2^32)/2 - 1.
Range for long is: -(2^64)/2 to +(2^64)/2 - 1.

-- modified at 7:19 Wednesday 1st August, 2007

Anurag Gandhi.
http://www.softgandhi.co.nr

Jonathan [Darka]1-Aug-07 1:23

Jonathan [Darka]

1-Aug-07 1:23

This is not strictly correct.

An int must be 'at least' 16bits (2 bytes) in size but can be 4 or more.

A long must be 'at least' 32bits (4 bytes) in size.

Also,

   sizeof(unsigned long) = sizeof(long)
and
   sizeof(unsigned int) = sizeof(int)

Range:

int                   -32767 - 32767 (Assuming 2 byte int, else –2,147,483,648 to 2,147,483,647 for 4 byte int)
unsigned int          0 - 65535 (Assuming 2 byte int, else 4,294,967,295 for 4 byte int)

long                  –2,147,483,648 to 2,147,483,647
unsigned long         0 - 4,294,967,295

regards,

-- modified at 7:29 Wednesday 1st August, 2007

Added range information.

Jonathan Wilkes
Darka[Xanya.net]

Anurag Gandhi1-Aug-07 1:42

Anurag Gandhi

1-Aug-07 1:42

Thanks for correction.

Anurag Gandhi.
http://www.softgandhi.co.nr

Mark Salsbery1-Aug-07 7:34

Mark Salsbery

1-Aug-07 7:34

Jonathan [Darka] wrote:
This is not strictly correct.

An int must be 'at least' 16bits (2 bytes) in size but can be 4 or more.

A long must be 'at least' 32bits (4 bytes) in size.

That's not correct either.

An int only has to be larger or equal to the size of a short int.
A long only has to be larger or equal to the size of an int.

The actual size is entirely compiler specific.

Mark

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

Christian Graus1-Aug-07 1:19

Christian Graus

1-Aug-07 1:19

The standard defines a *minimum* size for these variables. In Visual C++, they are both the same size.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Missing classes in Class Wizard

David Crow1-Aug-07 3:00

David Crow

1-Aug-07 3:00

With Visual Studio, check the limits.h file.

"A good athlete is the result of a good and worthy opponent." - David Crow

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

Anu_Bala31-Jul-07 23:54

Re: Missing classes in Class Wizard

31-Jul-07 23:54

I made MDI application and added my classes from other projects.
Now, i have to add some functions in my classes.But i cannot find the classes in class wizard under ClassName ListBox.
I can see only project generated classes(Mainfrm,app,doc,view,chilfrm)thats all.
How can i add my classes in class wizard. I think automatically its get added in class wizard.
Why the problem occurs?

Anu

Roger Broomfield1-Aug-07 0:15

Roger Broomfield

1-Aug-07 0:15

You might have to let ClassWizard rebuild the ClassWizard database. Close the project, find and delete the .clw file for the project (its in the same directory as the source files), open the project, open ClassWizard from the View menu. You will see a message box saying the ClassWizard database does not exist, answer yes, in the dialog box that opens next you may need to add/remove files from the listbox Files in project, then click OK.

Re: Missing classes in Class Wizard

Anu_Bala1-Aug-07 0:22