C / C++ / MFC

Re: Can Dynamic 2D arrays solve stack overflow problem?

22-Sep-06 9:17

Wouldn't it be easier to use a vector?

Maximilien22-Sep-06 9:39

Maximilien

22-Sep-06 9:39

What is the size of the data? an array of what ?

dynamic arrays might or might not fix your problem if it's a size issue.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Can Dynamic 2D arrays solve stack overflow problem?

David Crow22-Sep-06 9:51

Re: Database connectivity

22-Sep-06 9:51

75,200 ints would require 300,800 bytes of stack. If that were a double, it would require 601,600 bytes of stack, over half of the default value. Pass that around to only a few functions and the stack could be exhausted very easily.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Database connectivity

amaneet22-Sep-06 6:57

amaneet

22-Sep-06 6:57

Sir,
I want to connect the database(Sql Server) to vc++.net 1.1 programically.I also want to use insert delete update queries in the form .Please help me or please send any link for the problem.
Thanks.

led mike22-Sep-06 7:10

led mike

22-Sep-06 7:10

See all the Code Project articles here[^]

led mike

Static class

Waldermort22-Sep-06 6:32

22-Sep-06 6:32

I am creating a class which is more of a wrapper for functions than a class. There are no member variables to worry about. All the functions are static and can be accessed using a namespace or creating an instance. Is there a method of creating the whole class as static rather than prefixing each function definition with the keyword static?

Zac Howland22-Sep-06 6:50

Zac Howland

22-Sep-06 6:50

If there are no member variables, why even make it a class? Why not just put each of those functions into a namespace?

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Waldermort22-Sep-06 6:53

22-Sep-06 6:53

I have never seen this before. How would you do that?

Maximilien22-Sep-06 7:05

Maximilien

22-Sep-06 7:05

something like :

namespace Potato
{
 void Fry();
 void Boil();
 void Bake();
};

///...
Patato::Fry();

/// or but beware of namespace clash.
using Potato;
Fry();

Maximilien Lincourt
Your Head A Splode - Strong Bad

Waldermort22-Sep-06 7:10

Re: Worker Thread question

22-Sep-06 7:10

Perfect. Now, I wonder in the back of which book that was hiding?

Worker Thread question

Raul_Figous22-Sep-06 6:26

Raul_Figous

22-Sep-06 6:26

Hi
I am using AfxBeginThread function for creating a Thread. I need to create multiple threads inside a loop. In this case, i will be passing the same control function address to different Afxbeginthread (). Will it be a problem to pass the same function address to different Afxbeginthread ()?

Note: I won't be waiting inside the Loop to start the next Thread.

Please let me know your comments on this

Thanx in Advance.

"You must do things that you think you cannot do"
- Eleanor Roosevelt

Zac Howland22-Sep-06 6:52

Zac Howland

22-Sep-06 6:52

Raul_Figous wrote:
I am using AfxBeginThread function for creating a Thread. I need to create multiple threads inside a loop. In this case, i will be passing the same control function address to different Afxbeginthread (). Will it be a problem to pass the same function address to different Afxbeginthread ()?

You won't have a problem here. However, as a performance thing, you might want to create each one suspended and then resume them after each is created.

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Re: Worker Thread question

led mike22-Sep-06 7:08

led mike

22-Sep-06 7:08

Raul_Figous wrote:
I need to create multiple threads inside a loop.

How many? Any more than 5 or 10 and you should consider using a pool.

What are you doing in them? If you can use overlapped IO that would be better than threads.

led mike

Am i a file ? or am i a folder

Vikrant for VC++22-Sep-06 6:20

Vikrant for VC++

22-Sep-06 6:20

Hi Friends
I have a path as given below , now i wish to know whether the path given below is a file or folder.

I tried using OpenFile Function but it does not work for long names.

"C:\New Folder (4)\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Folder\New Text Document.txt"

Thanks in advance.

Re: Am i a file ? or am i a folder

David Crow22-Sep-06 6:53

Re: Am i a file ? or am i a folder

22-Sep-06 6:53

How about PathIsDirectory()?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Vikrant for VC++22-Sep-06 7:06

Vikrant for VC++

22-Sep-06 7:06

Hi Buddy

Thanks a lot.
It works Smile | :)

.

Regards

get the selected item from list controll

_tasleem22-Sep-06 5:39

22-Sep-06 5:39

hi i m selecting the item from the list controll through mouse click and want to get the item on which mouse was clicked, i mean selected item i tried the function of clistctrl but was not successful.
there is function which tells the position of selected item but no func to get he value of slected item like getitem() which gives the item fron list controll,
i had not found any func which takes the position and give the item text.

Tasleem Arif

sundar15622-Sep-06 5:57

sundar156

22-Sep-06 5:57

Hi,
The list controls holds collections,Hence you have to cast it to specific datatype while you get the value of the selected item..
Like ...
private void listBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{

string t=(string)listBox1.SelectedItem;

}

Hope this works..

Luck is Opportunity with hardwork

_tasleem22-Sep-06 8:27

22-Sep-06 8:27

i m using vc 6 not vb.net or C#.

Tasleem Arif

led mike22-Sep-06 6:14

led mike

22-Sep-06 6:14

They hide that information in the Documentation[^]

led mike

David Crow22-Sep-06 6:56

22-Sep-06 6:56

tasleem143 wrote:
...i tried the function of clistctrl but was not successful.

Which ~~function~~ method?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

_tasleem22-Sep-06 8:23

22-Sep-06 8:23

as i describled above there is one func which can be used for getting selected items.
like getFirstselecteditemposition n dont know how to get the selected item from that as there is no function to get the tesxt.

Tasleem Arif

David Crow22-Sep-06 8:31

22-Sep-06 8:31

tasleem143 wrote:
there is one func which can be used for getting selected items.

Actually, there's more than one. What's wrong with:

int nItem = listctrl.GetNextItem(-1, LVNI_SELECTED);

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

_tasleem22-Sep-06 18:41