C / C++ / MFC

12-Mar-07 3:15

If FindFirstFile() is failing and GetLastError() is returning 3, that equates to ERROR_PATH_NOT_FOUND.

AdiBhapse wrote:
So what could be the problem?

What does mbstowcs() return?

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

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

time_t

_80869-Mar-07 1:45

_8086

9-Mar-07 1:45

How do I make use of this structure? Just get the current time and compare to times.Please help.
Please note:I dont want any other time formats.

286? WOWW! Blush | :O

Re: time_t

CPallini9-Mar-07 1:52

CPallini

9-Mar-07 1:52

Actually it's a long interger and its usage is pretty strightforward, see MSDN for time function. 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.

Re: time_t

cmk9-Mar-07 5:07

cmk

9-Mar-07 5:07

Actually ... with VS 2005 time_t is either __int64 or long integer depending on whether _USE_32BIT_TIME_T is defined or not.

...cmk

Save the whales - collect the whole set

Academia?

CPallini9-Mar-07 5:51

CPallini

9-Mar-07 5:51

cmk wrote:
Actually ... with VS 2005 time_t is either __int64 or long integer depending on whether _USE_32BIT_TIME_T is defined or not

it's pure academia. The difference doesn't matter in the current context 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.

About type casting

siddharthsan9-Mar-07 1:25

siddharthsan

9-Mar-07 1:25

Hi,

Could anybody tell me about typecasting.How to convert a simple int to a CString.I want to return a integer value through the messagebox.

Thank you

Siddharth

Rajesh R Subramanian9-Mar-07 1:40

Rajesh R Subramanian

9-Mar-07 1:40

If just displaying an integer value in message box is your problem, use CString::Format for that.

CString str;
int i = 68;
str.Format("%d is an integer and %c is a character", i, i);
AfxMessageBox(str);

[Noobs Treatment Area]
Nobody can give you wiser advice than yourself. - Cicero
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siddharthsan9-Mar-07 1:54

siddharthsan

9-Mar-07 1:54

Hi,

I entered this code,
Now it is displaying some garbage value???
Actually, iam getting that integer through a edit control like,

int s;
m_height.GetDlgItemInt(s,NULL,TRUE);

m_height is the value entered in the edit box.

so,i want to know whether it taking it properly ,thats why i want to display it through the messagegbox.

Thank you,

Siddharth

Rajesh R Subramanian9-Mar-07 2:01

Rajesh R Subramanian

9-Mar-07 2:01

Try this:

CString str;
m_edit.GetWindowText(str);
AfxMessageBox(str);

[Noobs Treatment Area]
Nobody can give you wiser advice than yourself. - Cicero
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David Crow9-Mar-07 3:05

9-Mar-07 3:05

siddharthsan wrote:
m_height is the value entered in the edit box.

m_height should be a CEdit object. Then you can use its GetWindowText() method.

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

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

Hamid_RT9-Mar-07 1:48

Hamid_RT

9-Mar-07 1:48

Or you can use of itoa

WhiteSky

siddharthsan9-Mar-07 1:56

siddharthsan

9-Mar-07 1:56

yes,I already tried it.But getting "memory could not be read "error.

Thank you

Siddharth

Hamid_RT9-Mar-07 2:31

Hamid_RT

9-Mar-07 2:31

Can you show your code how do you use?

WhiteSky

Regarding file duration using DirectDraw

vibindia9-Mar-07 2:50

vibindia

9-Mar-07 2:50

Hi,

Why don't u create an data member for thar Edit box (Category as Value and type as int)in MFC class wizard.This will get u the integer value by the statement UpdateData();

Wink | ;)

VIBIN

"Fool's run away,where angle's fear to tread"

gan_esh9-Mar-07 1:21

gan_esh

9-Mar-07 1:21

Hi Everyone,
In my application I used directdraw to play the media files like MPEG,MPEG2,etc..,in that while loading the files I want the duration of the files in list control while adding it in the List itself. How to get the duration of the files while loading in the playlist before playing the file.

Looking forward for your reply

with regards,

Ganesh

SendMessage Function

neha.agarwal279-Mar-07 0:49

neha.agarwal27

9-Mar-07 0:49

Hi all,

i Have a problem regarding multithreading....

Actually i am having a list control in that list control i having 2 columns one contaning url value n other for displaying result....
this i have done through making a class for ping which is derieved from CWinThread class...
if i run a single class then the result displayed in the list control column is correct but instead if i select more than 1 value then the result displayed is same (both rows contain same value). But the value calculated for ping is correct..problem is in displaying it in listctrl..
for sending messeage i have used SendMessage function .

Can anybody help me in this...

thanks in advance

Re: SendMessage Function

David Crow9-Mar-07 3:08

my homework-amicable numbers

9-Mar-07 3:08

neha.agarwal27 wrote:
for sending messeage i have used SendMessage function .

Your secondary thread should not be sending messages directly to the list control (which belongs to the primary thread). Post a message to the primary thread instead, and let it update its controls. See here for more.

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

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

sugaragga9-Mar-07 0:36

sugaragga

9-Mar-07 0:36

Hi I have a homework about finding amicable numbers
[[[[
Amicable numbers:Two numbers are called Amicable(or friendly)if each equals to the sum of the aliquot divisors
of the other.Aliquot divisors mean all the divisors excluding the number itself. For example,

aliquot divisors of number 220 are 1,2,4,5,10,11,20,22,44,55 and 110. The aliquot divisors of number 284 are 1,2,4,71 and 142.

If we represent anamicable pair by(m,n)and sum of aliquot divisors of m and n by(m)and(n)respectively,then for amicable pair(220,284)we get

(m)=(220)=1+2+4+5+10+11+20+22+44+55+110=284=n
(n)=(284)=1+2+4+71+142=220=m

]]]]

my teacher wanted this programs code in C++ without using any arrays(we are allowed to do this with if,while,for,do while).And also the program must be like this:

220 and 284 are amicable numbers.
Number of amicable number less than 1000 is 1.
1184 and 1210 are amicable numbers.
2620 and 2924 are amicable numbers.
5020 and 5564 are amicable numbers.
6232 and 6368 are amicable numbers.
Number of amicable number less than 10000 is 5.
....
....
....
....

It must survive up to 10^10.
Please help me,I will so appreciate... Cry | :((

Bob Flynn9-Mar-07 1:04

Bob Flynn

9-Mar-07 1:04

I'll point you in the right direction to help you do it yourself.

First off you clearly need a function to compute the aliquot divisor of a number.
Second you need to decide how to find the pairs. (assume that you need to detect/avoid duplicates) I think a simple loop can handle this problem.

You need to go through the thought process. You can get help for that here - maybe.

sugaragga9-Mar-07 13:05

sugaragga

9-Mar-07 13:05

I cannot do it by myself.I found these codes in this site but it has an array like int get_sumf(int val).We are not allowed to do that.How can I do it without ant array???

#include <stdio.h>

#define MAX 10000000000

int get_sumf(int val)
{
int sum = 1;
int k;

for (k = 2; k <= val / 2; ++k)
if (val % k == 0)
sum += k;
return sum;
}

int main()
{
int i, k;

for (i = 2; i < MAX; ++i) {
int val = get_sumf(i);
for (k = 0; k < i; ++k)
if (val == k && get_sumf(k) == i)
printf("%d %d\n", i, k);
}
return 0;
}

David Crow9-Mar-07 3:10

9-Mar-07 3:10

sugaragga wrote:
Please help me...

Exactly which part do you need help with? What code do you have in place so far? What doesn't work?

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

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