C / C++ / MFC

Re: How to use MFC speex audio files (WAV format) for encoding, and converted to ogg files？

2-Jun-14 23:28

renxiaoyaoa8 wrote:
it is better for examples of MFC

You should use Google to look for samples. When you have specific technical questions then come back and post them here.

renxiaoyaoa83-Jun-14 16:12

renxiaoyaoa8

3-Jun-14 16:12

OK thank you！

Detect working area of primary monitor

vg8open2-Jun-14 10:49

vg8open

2-Jun-14 10:49

I have a program that display a popup dialog above the notification area of the task bar. I am using the following function to get the work area of the primary monitor.

CRect rcDesktop;
::SystemParametersInfo(SPI_GETWORKAREA,0,&rcDesktop,0);

CRect rc;
GetWindowRect(rc);
ScreenToClient(rc);

unsigned int m_nStartPosX = rcDesktop.right - rc.Width() - 1;
unsigned int m_nStartPosY = rcDesktop.bottom - rc.Height();

SetWindowPos(
&wndTop,
m_nStartPosX,
m_nStartPosY,
rc.Width(),
rc.Height(),
SWP_NOOWNERZORDER | SWP_NOACTIVATE);

I tested my program on my single/dual monitor setups and it's working correctly, but one of my users reported that on his three monitor setup, the popup dialog is displaying on the wrong monitor. It seems like SystemParametersInfo() can't get the correct working area on his system. Does anyone know any other way to get the working area of the primary monitor?

-- modified 2-Jun-14 17:00pm.

Re: Detect working area of primary monitor

peterchen3-Jun-14 1:58

peterchen

3-Jun-14 1:58

Looks good to me. Rather than looing for "another method" I'd verify user assumptions about where the dialog is supposed to appear are right. Also, trace or log output (return value, GetLastError, coordinates acquired).

ORDER BY what user wants

Re: Detect working area of primary monitor

Randor 3-Jun-14 7:43

Randor

3-Jun-14 7:43

Hi,

Make sure you are compiling with COMPILE_MULTIMON_STUBS defined and add #include <multimon.h>

Best Wishes,
-David Delaune

Anyone done any Web Scraping in C++/MFC

Bryan Anslow2-Jun-14 6:26

Bryan Anslow

2-Jun-14 6:26

Hi,
I currently get data from a website like this;
Go to the webpage, wait while the page loads, "select" the data in the webpage by dragging my mouse over it, Copy to clipboard, call up my text editor, Paste the data into the editor, save the output, analyze the data using my C++/MFC Analyzer.

There must be a way I can get the data without the need to copy/paste etc.

I know something about HTTP Connections, sockets, etc., but I am at a loss to know just what parameters need to be passed to the website in the request. I tried just sending the URL of the webpage, which returned a lot of stuff which I did not want.

Does anyone have a simple example of how this is supposed to work?

Thanks so much,

Bryan.

Richard MacCutchan2-Jun-14 7:15

2-Jun-14 7:15

If you read the HTML output directly then there will be a load of stuff that you are perhaps not interested in. The answer is to find some classes that help you find specific parts quickly, and C++/MFC does not offer the facilities that are available in .NET. Most web scrapers are written in the latter framework using C# or VB.NET. As to what information to send to the website, that depends on the website itself as each one has its own structure.

David Crow2-Jun-14 7:26

David Crow

2-Jun-14 7:26

Bryan Anslow wrote:
Go to the webpage, wait while the page loads, "select" the data in the webpage by dragging my mouse over it, Copy to clipboard, call up my text editor, Paste the data into the editor, save the output, analyze the data using my C++/MFC Analyzer.

I think you can replace all but the last of these steps with URLDownloadToFile().

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Bryan Anslow2-Jun-14 8:36

Bryan Anslow

2-Jun-14 8:36

Hey, that works well, thanks for pointing me at that function.

My minor hurdle right now is that I need to login with my userid and password to access one of the pages.

Don't suppose that there is some way of getting my credentials in there somehow?

Thanks,

Bryan.

David Crow2-Jun-14 9:22

David Crow

2-Jun-14 9:22

See if NetUseAdd() helps.

Newbee MFC

C-P-User-31-Jun-14 14:23

C-P-User-3

1-Jun-14 14:23

I got the word that I am supposed to be ready to take on some MFC work

I'm starting here with this link...

Tutorial by Sung of the University Of Washington / Bothell[^]

I found THIS PAGE[^] on Microsoft's website, but my impression is that that page is for experts who already know everything about it.

I welcome helpful suggestions on where to look, read, practice, etc.

modified 2-Jun-14 6:53am.

Re: Newbee MFC

Richard MacCutchan1-Jun-14 21:49

HOW I can pause the timer in qt

1-Jun-14 21:49

Please don't use the technical forums for spam-like messages; the Lounge or the Soapbox are the places. You may also like to read and digest http://www.codeproject.com/Messages/2922875/HOW-TO-ASK-A-QUESTION.aspx[^].

Re: Newbee MFC

jeron12-Jun-14 4:08

jeron1

2-Jun-14 4:08

Books by Jeff Prosise have been helpful to me and many others.

sara741-Jun-14 1:42

Re: HOW I can pause the timer in qt

1-Jun-14 1:42

hello my friends. how i can pause a timer in qelapsedclass in qt?
i looked for but i couldnt find any function . can anyone help me?
thanks

Albert Holguin2-Jun-14 5:34

Albert Holguin

2-Jun-14 5:34

I don't think there's a native "pause" in the class. You should however, be able to use restart() to the same effect...
http://qt-project.org/doc/qt-5/qelapsedtimer.html#restart[^]

how can i convert a QString to char* in QT

sara741-Jun-14 1:24

Re: how can i convert a QString to char* in QT

1-Jun-14 1:24

Hi world. how i can convert a QString to char* in QT?
is there any function?
thanks

Richard MacCutchan1-Jun-14 2:38

How to convert a QString to char* (char pointer) in QT

1-Jun-14 2:38

Please read http://www.codeproject.com/Messages/2922875/HOW-TO-ASK-A-QUESTION.aspx[^], and make an effort to do some research[^] before posting your questions.

Software_Developer1-Jun-14 22:47

Software_Developer

1-Jun-14 22:47

http://qt-project.org/faq/answer/how_can_i_convert_a_qstring_to_char_and_vice_versa[^]

http://qt-project.org/forums/viewthread/4732[^]

Qtimer class in Qt

sara7431-May-14 20:17

31-May-14 20:17

hi world. I am looking a function or attributes in class qtimer in qt that holds the time passed. can anyone say me is there any function or attributes that hold or return the time passed?
thanks

Re: Qtimer class in Qt

Richard MacCutchan31-May-14 21:03

The QElapsedTimer Class has timer.elapsed( ) built in.

31-May-14 21:03

Did you check the documentation[^]?

Software_Developer31-May-14 21:13

Software_Developer

31-May-14 21:13

QElapsedTimer Class example :

C++

QElapsedTimer timer;
    timer.start();

    slowOperation1();

    qDebug() << "The slow operation took" << timer.elapsed() << "milliseconds";

QElapsedTimer Class documentation : http://qt-project.org/doc/qt-5/qelapsedtimer.html[^]

Re: The QElapsedTimer Class has timer.elapsed( ) built in.

sara741-Jun-14 1:25

The Ultimate Toolbox file watcher links are dead

1-Jun-14 1:25

thank you very much my friend. you help me very much Rose | [Rose]

Grine Amine31-May-14 5:51

Grine Amine

31-May-14 5:51

hi every body , i have a project using c++(QT) , i want to detect any file change(remove, create..) in a directory , i found The Ultimate Toolbox file watcher Demo , and it's works fine and it will help me a lot if i find the source code , but when it try to download the source code it show me this message :

Ticket: (No ticket provided - possibly an error in the error-system)
Error: An error occurred in this page. The error has been recorded and the site administrator informed.
Abort, Retry, Fail?

so please if any one have the source code give it to me (my e-mail if you want : aminescm3@gmail.com) or juste put the link here.

Re: The Ultimate Toolbox file watcher links are dead

Richard MacCutchan31-May-14 21:01