Simplifying new lines... - C / C++ / MFC Discussion Boards

Re: CD drive open and close

David Crow5-Sep-07 5:02

David Crow

5-Sep-07 5:02

Try mciSendCommand(), like:

mciSendCommand(..., MCI_SET, MCI_SET_DOOR_OPEN, ...);

"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

Reading Wav file [modified]

rp_suman4-Sep-07 16:20

rp_suman

4-Sep-07 16:20

I want to read a Wav file and do some process for each sample.
Is there any standard method parsing .Wav file?
Thanks & Regards,
Suman

-- modified at 22:25 Tuesday 4th September, 2007

Re: Reading Wav file

David Crow4-Sep-07 17:11

David Crow

4-Sep-07 17:11

rp_suman wrote:
Is there any standard method parsing .Wav file?

As long as you know its format, no.

"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

Re: Reading Wav file

Stephen Hewitt4-Sep-07 22:17

Stephen Hewitt

4-Sep-07 22:17

What do you mean by "parsing"? Do you want to play it? Extract information from it? Re-encode it? Something different?

Steve

Re: Reading Wav file

rp_suman5-Sep-07 15:23

rp_suman

5-Sep-07 15:23

Yes, i want to read each sample and do reverse, hamming and delay.
Thanks & Regards,
Suman

Re: Reading Wav file

Russell^'4-Sep-07 23:53

Russell^'

4-Sep-07 23:53

If you want to read yourself the data to get the samples and modify them you have to read corretly the header (after that you will find the row data):

http://www.sonicspot.com/guide/wavefiles.html[^]

I don't know if some functions are jet available in C++.
Don't warning, ... it's not hard, I do something similar by myself using Matlab years ago in less then 1 day.

good luck Smile | :)

Russell

Re: Reading Wav file

rp_suman5-Sep-07 15:29

rp_suman

5-Sep-07 15:29

Hi Russell, Thanks for the link!!
I got how to open and read the Wav file from:Performing File I/O on RIFF Files[^]
Thanks & Regards,
Suman

Simplifying new lines...

MoboTech4-Sep-07 11:57

MoboTech

4-Sep-07 11:57

When I apply new lines, I feel that there's got to be a more easier and byte consuming way of making new lines. I'm new to the programming scene, so much help is appreciated. Instead of applying cout and endl beside every line, is there a more common and better way of doing this? Please offer advice. Thank you.

Here's my code:

// Lyrics.cpp : Displaying Lyrics.<br />
// Steve Baker<br />
<br />
#include "stdafx.h"<br />
#include <iostream><br />
<br />
using namespace std;<br />
<br />
<br />
int _tmain(int argc, _TCHAR* argv[])<br />
{<br />
<br />
	cout << "'Gone Crazy'" << endl;<br />
	cout << "by Alan Jackson" << endl;<br />
	cout << endl;<br />
<br />
	cout << "Here I am all alone again tonight" << endl;<br />
	cout << "In this old empty house" << endl;<br />
	cout << "It's hard to learn what you don't think you need" << endl;<br />
	cout << "You can't live without" << endl;<br />
	cout << "Never leave the sound of the telephone" << endl;<br />
	cout << "But ever since you left" << endl;<br />
	cout << "I've been gone" << endl;<br />
	cout << "Gone carzy, goin' out of my mind" << endl;<br />
	cout << "I've asked myself the reasons," << endl;<br />
	cout << "at least least thousand times," << endl;<br />
	cout << endl;<br />
<br />
	cout << "Press the Enter key to continue...";<br />
	cin.ignore(99,'\n');<br />
<br />
return 0;<br />
}

Re: Simplifying new lines...

bob169724-Sep-07 12:05

bob16972

4-Sep-07 12:05

put the text in a file.

read each line of the file in a loop and spit it out onto the console with cout.

Much less typing Wink | ;)

Re: Simplifying new lines...

MoboTech4-Sep-07 12:10

MoboTech

4-Sep-07 12:10

I need to print all my lines on one paper (hw assignment). So I don't think putting the text in a file is optional at the moment. I remember my professor giving shortcuts but forgot what he did. Any ideas?

Re: Simplifying new lines...

Mark Salsbery4-Sep-07 12:27

Mark Salsbery

4-Sep-07 12:27

Then how about...

Type one line like this:

cout << "" << endl;

Select the line, Ctrl-C to copy to clipboard, Ctrl-V to copy it a couple hundred times.
Navigate to the top line and start typing text between the quotes.

Beer | [beer]

Mark

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

Re: Simplifying new lines...

MoboTech4-Sep-07 13:06

MoboTech

4-Sep-07 13:06

lol I didn't mean that kind of shortcut. But I think I've figured it out, instead of using endl, I now use \n for new line. But what's the difference between endl and \n? Which should I use for this situation?

Re: Simplifying new lines...

Mark Salsbery4-Sep-07 13:19

Mark Salsbery

4-Sep-07 13:19

MoboTech wrote:
But what's the difference between endl and \n?

endl writes a '\n' to the stream AND flushes the stream.

You could do cout.flush(); after you've written the lines of text.

Mark

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

Re: Simplifying new lines...

David Crow4-Sep-07 13:28

David Crow

4-Sep-07 13:28

MoboTech wrote:
But what's the difference between endl and \n?

In a word...caching.

"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

Re: Simplifying new lines...

songjacky4-Sep-07 13:49

songjacky

4-Sep-07 13:49

void cout (char* szMsg)
{
cout << szMsg << endl;
}

cout("abc");

Re: Simplifying new lines...

bob169724-Sep-07 16:17

bob16972

4-Sep-07 16:17

// Lyrics.cpp : Displaying Lyrics.
// Steve Baker

#include "stdafx.h"

char* stuff[]= {
{"'Gone Crazy'"},
{"by Alan Jackson"},
{""},
{"Here I am all alone again tonight"},
{"In this old empty house"},
{"It's hard to learn what you don't think you need"},
{"You can't live without"},
{"Never leave the sound of the telephone"},
{"But ever since you left"},
{"I've been gone"},
{"Gone carzy, goin' out of my mind"},
{"I've asked myself the reasons,"},
{"at least least thousand times,"},
{""}
};

char otherStuff[]={
"\
'Gone Crazy'\n\
by Alan Jackson\n\
\n\
Here I am all alone again tonight\n\
In this old empty house\n\
It's hard to learn what you don't think you need\n\
You can't live without\n\
Never leave the sound of the telephone\n\
But ever since you left\n\
I've been gone\n\
Gone carzy, goin' out of my mind\n\
I've asked myself the reasons,\n\
at least least thousand times,\n\
\n"
};

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
int nCount=(sizeof(stuff)/sizeof(char*));

// One way...
for (int i=0;i<nCount;++i) {
cout << stuff[i] << endl;
}

// Another way...
cout << otherStuff << endl;

cout << "Press the Enter key to continue...";
cin.ignore(99,'\n');

return 0;
}

How to measure user inactivity?

concoran4-Sep-07 11:40

concoran

4-Sep-07 11:40

I am writing an application that runs as a Windows Service to measure user inactivity - for the purpose of timing out applications. How best to do it?

None

Re: How to measure user inactivity?

concoran4-Sep-07 11:43

concoran

4-Sep-07 11:43

Oops: My bad. I just noticed a similar thread below.
But coming to think of it, I am not particularly interesting in using Mouse/Keyboard hooks since they may affect over-all computer response. Is there a way to tell MS Windows to wake up a certain CALLBACK if the user doesn't input for a certain period of time?

None

Re: How to measure user inactivity?

Russell^'4-Sep-07 21:24

Russell^'

4-Sep-07 21:24

look CWinApp::OnIdle (MFC)
Wink | ;)

Russell

Re: How to measure user inactivity?

Rajesh R Subramanian5-Sep-07 0:33

Rajesh R Subramanian

5-Sep-07 0:33

Wrong.

Did you read the docs to find out what OnIdle() does?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->ßRÅhmmÃ<-·´¯`·.

Re: How to measure user inactivity?

Russell^'5-Sep-07 0:42

Russell^'

5-Sep-07 0:42

brahmma wrote:
Wrong

brahmma wrote:
Did you read the docs to find out what OnIdle() does?

Did you?

Russell

Re: How to measure user inactivity?

Rajesh R Subramanian5-Sep-07 0:50

Rajesh R Subramanian

5-Sep-07 0:50

I don't care you voting me 1 for that, but at least try to realize that you are providing wrong guidance to a person seeking help. That is plainly unacceptable.

Russell` wrote:
Did you?

Of course I do read the docs and I've provided him the correct solution.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->ßRÅhmmÃ<-·´¯`·.

Re: How to measure user inactivity?

Russell^'5-Sep-07 1:02

Russell^'

5-Sep-07 1:02

Sorry,...I haven't seen that him was talking to windows-inactivity and not his app-inactivity.
Next time I'll read the question better.
Thank you
...and sorry to the OP
Hmmm | :|

Russell

Re: How to measure user inactivity?

Rajesh R Subramanian5-Sep-07 0:35

Rajesh R Subramanian

5-Sep-07 0:35

concoran wrote:
I am not particularly interesting in using Mouse/Keyboard hooks since they may affect over-all computer response. Is there a way to tell MS Windows to wake up a certain CALLBACK if the user doesn't input for a certain period of time?

If you run Windows 2000 or above, you can use GetLastInputInfo() API.

See here[^].

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->ßRÅhmmÃ<-·´¯`·.

How to terminate an MFC application after a period of inactivity

Sriramak4-Sep-07 11:09

Sriramak

4-Sep-07 11:09

I am looking for some help on terminating an application after a certain period of inactivity.

I need to terminate the application if the user does not perform any actviity for certain amount of time.

Any help or direction will be appreciated.

Thanks

Sri Rama

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.