C / C++ / MFC

Re: RunAnHTMLFile [edited]

7-Mar-06 8:20

nripun wrote:
Is there a way to...change the monitor resolution from the VC++ program.

See ChangeDisplaySettings().

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

RunAnHTMLFile

akram mirzaei7-Mar-06 1:17

akram mirzaei

7-Mar-06 1:17

Can you send me an example that I run it an HTML file run .
tnks

Re: RunAnHTMLFile

Nibu babu thomas7-Mar-06 1:25

Nibu babu thomas

7-Mar-06 1:25

ShellExecute(NULL,"open","yourHTMLFilePath.html",NULL,NULL,SW_SHOWNORMAL);

Nibu thomas
Software Developer

Re: RunAnHTMLFile

Hamid_RT7-Mar-06 1:27

Hamid_RT

7-Mar-06 1:27

check your mail

toxcct7-Mar-06 1:42

problems with CTime calculation

7-Mar-06 1:42

man ! do you look at your answers[^] when asking for something ?! Unsure | :~

[edit]
ah I see, you deleted your post after my second reply to make people think I'm dumb ?
but you failed... Suspicious | :suss:

[/edit]

-- modified at 7:52 Tuesday 7th March, 2006

J51219827-Mar-06 0:28

J5121982

7-Mar-06 0:28

how to get the current system IP address?

JAYARAJ

toxcct7-Mar-06 0:31

7-Mar-06 0:31

J51219827-Mar-06 3:22

J5121982

7-Mar-06 3:22

i got it thanks

CString CIP::GetIP()
{
CString strIp;

//Init winsock
WSADATA wsaData;
int nErrorCode = WSAStartup(MAKEWORD(1,1), &wsaData);
if (nErrorCode != 0) {
//Cannot initialize winsock
return _T("");
}

char strHostName[81];
if (gethostname(strHostName, 80)==0)
{
hostent *pHost = gethostbyname(strHostName);
if (pHost->h_addrtype == AF_INET)
{
in_addr **ppip=(in_addr**)pHost->h_addr_list;

//Enumarate all addresses
while (*ppip)
{
in_addr ip=**ppip;
strIp = CString(inet_ntoa(ip));
ppip++;
if (strIp!=_T("")) {
break;
}
}
}
}

return strIp;
}

JAYARAJ

Neil scsn7-Mar-06 0:13

Neil scsn

7-Mar-06 0:13

Hi,
Im using the CTime to calculate the date when adding number of days. The
strange thing is that when I add 58 and 59 days to the same date it returns
the same date. Here is the small code:

void DateCalc(int Days)
{
int Date=1;
int Month=9;
int Year1,Month1,Day1;

CTime Check( 2006, Month,Date,0,0,0);
Check+=CTimeSpan( Days,0,0,0);

Year1=Check.GetYear();
Month1=Check.GetMonth();
Day1=Check.GetDay();
TRACE("Year %d Month %d Date %d\n",Year1,Month1,Day1);
}

... function(...)
{
DateCalc(58); //add 58 days to 1/9/2006
DateCalc(59); //add 59 days to 1/9/2006

Both TRACE(..) functions within DateCalc(..) displays :

Year 2006 Month 10 Date 29
Year 2006 Month 10 Date 29

Anyone explain this?
Neil

Nibu babu thomas7-Mar-06 1:07

Nibu babu thomas

7-Mar-06 1:07

Just try COleDateTime instead of CTime.

Nibu thomas
Software Developer

Neil scsn7-Mar-06 3:04

Neil scsn

7-Mar-06 3:04

How do I add number of days to date? I tried the below, but didnt allow me to dd days to it.

int Month=9;
int Date=1;

COleDateTime Check( 2006, Month,Date,0,0,0);
Check+=CTimeSpan( 58,0,0,0);

Neil

David Crow7-Mar-06 3:10

7-Mar-06 3:10

NeilDevlin wrote:
Check+=CTimeSpan( 58,0,0,0);

Check+=COleDateTimeSpan( 58,0,0,0);

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Neil scsn7-Mar-06 3:21

Neil scsn

7-Mar-06 3:21

That worked, thanks.. Smile | :)

Neil

Graham Bradshaw7-Mar-06 2:53

Graham Bradshaw

7-Mar-06 2:53

<wild guess>

British Summer Time ends on 29 Oct. My guess is that the CTime class is doing some BST/GMT stuff behind your back. I'd check the hour value of the Check variable, to see if that's changing.

</wild guess>

David Crow7-Mar-06 3:24

Finding number of bits set in a given number

7-Mar-06 3:24

NeilDevlin wrote:
Anyone explain this?

Go ahead and output the hour, minute, and second. Notice that the first one is 00:00:00 while the second one is 23:23:00. That BST thing is affecting you. To solve this, simply add another 0 to the CTime constructor.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Amar Sutar7-Mar-06 0:09

Amar Sutar

7-Mar-06 0:09

How do I find the number of bits set in a given integer number without using any while/for loop? Confused | :confused:

Re: Finding number of bits set in a given number [fixed]

toxcct7-Mar-06 0:20

7-Mar-06 0:20

myInt mi = /*...*/;  //The integer to scan
 
int iCpt = 0;   //The counter of set bits
 
//For each bits in the integer
for (int i = 0; i < sizeof(mi) * 8; i++) {
 
    //If the most right bit is set
    if ((mi & 0x1) == 0x1) {
 
        //Increasing the counter
        iCpt++;
 
    }
 
    //shifting all bits of 1 position to the right
    mi >> 1;
}
 
printf("mi contains %d '1'\n", iCpt);

ps: don't cross posts the forums. delete your question on the C++/CLI forum, as it is not a managed C++ question

-- modified at 6:51 Tuesday 7th March, 2006 (thanks stephen)

Stephen Hewitt7-Mar-06 0:48

Stephen Hewitt

7-Mar-06 0:48

I don't believe this code will work:

v2.0 wrote:
//For each bits in the integer
for (int i = 0; i < sizeof(mi); i++) {

Say "MyInt" is of type char. In this case sizeof(char) is 1. So the loop only loops once - But it should loop 8 times. With the following modification it will work:

for (int i = 0; i < sizeof(mi)*8; i++) {

PS: This assumes 8 bit chars - A fair assumption but not universally true on all platforms.

Steve

toxcct7-Mar-06 0:51

Re: Finding number of bits set in a given number [fixed]

7-Mar-06 0:51

yep sorry, i fixed it consequently.

thanks

David Crow7-Mar-06 3:42

Re: Finding number of bits set in a given number [fixed]

7-Mar-06 3:42

v2.0 wrote:
for (int i = 0; i < sizeof(mi) * 8; i++) {

I believe that amar specifically indicated no while or for loops.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

toxcct7-Mar-06 3:44

7-Mar-06 3:44

yes, badKarma already notified me about that point that i did not see firstly

Stephen Hewitt7-Mar-06 0:32

Stephen Hewitt

7-Mar-06 0:32

Given this:

#include <iostream>
#include <bitset>
using namespace std;
 
typedef bitset<sizeof(int)*8> IntBitSet;

You can count the bits like this:

cout << IntBitSet(42).count();

Steve

toxcct7-Mar-06 0:34

7-Mar-06 0:34

that's good, but very expensive way though

Stephen Hewitt7-Mar-06 0:52

Stephen Hewitt

7-Mar-06 0:52

With templates only the methods actually called are compiled. Also, in general, the methods will be inline. That said the MSVC6 STL bitset class isn't as good as it could be and it will be slower then manually written code. With a good compiler (which MSVC6 is not) and a good STL there is no reason why it can't be just as efficient.

Steve

toxcct7-Mar-06 0:56