C / C++ / MFC

Re: How to obtain effect of zooming in VC++? [modified]

23-Dec-08 3:08

class ZoomableObject
{
//...
public:
//...
void zoom(double dZoomFactor);
};

void ZoomableObject::zoom(double dZoomFactor);
{
//...
}

just fill the ellipses.
Big Grin | :-D

That is: pointless question => pointless answer.
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.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Jijo.Raj23-Dec-08 3:15

Jijo.Raj

23-Dec-08 3:15

One of the trick is to use SetViewPortExt()[^] to archive zooming effect. Checkout this article[^]. You can use StretchBlt()[^] as well.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

modified on Tuesday, December 23, 2008 9:22 AM

Re: How to obtain effect of zooming in VC++?

bob1697223-Dec-08 17:21

bob16972

23-Dec-08 17:21

Here's an old post[^] on that topic

(You need to navigate to my post just below where this takes you for a sample)

QRS detector GUI

Shteki23-Dec-08 1:56

Shteki

23-Dec-08 1:56

Hello,

I'm new to the forum and the site and I must say that I will mostly enjoy the community Wink | ;)

My english isn't very well, but I'll try my best in discusions and problem description!
Now the problem:
I'm trying to make a QRS detector GUI. What's it about: I'm using the Pan-Tompkins-based QRS detector in analysing ECG signals. My input is the MIT/BIH arrhythmia database (from 100 to 108) and after it passes through the QRS detection, I have to show that output signal graphicaly in real-time. Something like Chart-o-matic in www.physionet.org but in real-time.
Now, that output signal is a clean signal (couse it passed through the QRS detector) and I have to mark all the R peaks (the highest peak in QRS area) and connect them all with a sinus-like line (something like cubic-spline connection in MATLAB).
I'm using the open-source Hamilton detector with some modifications (I don't need the clasification part) and I just don't know in what program or I what kind of a way to continue.. The real problem is what programming language to use (I only really know to use pure C).
can anyone help with the start?
Thx!

Advanced Chat application Part 03 -Audio Video Call Problem- (tough work time)

Mustapha Rédouane23-Dec-08 0:34

Mustapha Rédouane

23-Dec-08 0:34

Men,

i need so Media streaming experts!

I want your suggestion

Now i started coding the Audio video streaming fir the Audio Video Call for my app.

Starting point; Does any one of you, have Ideas about Video/Audio Streaming through a network (Using CAsyncSockets)

Hope i find some answers when i come tomorrow...

Best Regards for all the Men here!...

Advanced Chat application Part 02 (contact list control)

Mustapha Rédouane23-Dec-08 0:17

Mustapha Rédouane

23-Dec-08 0:17

Hey friends,

Lookin for a "contact list control"

the ctrl should have The contact name IM button Video-Call button Options button... (Similar to skype contact list)

well hoping that Some one have or have seen such a ctrl..

--------------------------------------------
Some People Dream Of success While others wake-up and workhard to get it..

Question on CMap

KASR122-Dec-08 23:53

KASR1

22-Dec-08 23:53

How to set string key in CMap.

CPallini23-Dec-08 0:28

23-Dec-08 0:28

For instance, as follows

CMap <LPCTSTR, LPCTSTR, int, int:> myMap;

Naveen23-Dec-08 0:43

Naveen

23-Dec-08 0:43

RSAK wrote:
How to set string key in CMap.

Like this....

CMap<CString,LPCTSTR,int,int> m_StringToIntMap;

nave

[OpenedFileFinder] [My Blog]

KASR123-Dec-08 0:52

KASR1

23-Dec-08 0:52

I am bit confused with the second and fourth template arguments!
What's the exact use of that.

Naveen23-Dec-08 1:27

Naveen

23-Dec-08 1:27

RSAK wrote:
I am bit confused with the second and fourth template arguments!

The First and Third parameters specifies, in which datatype the map will be keeping the data inside.
The Second and 4th parameter specifies, how you will be passing the key and value to map. For example, when you call the SetAt() function, the map will be expecting the data types in the form of 2nd and 4th datatypes. How ever, it will convert those parameters to 1st and 3rd form internally and sets that objects as map data.

nave

[OpenedFileFinder] [My Blog]

Printing through C

Razanust22-Dec-08 23:23

Razanust

22-Dec-08 23:23

Can we prinany thing through C on Codeblocks using the following code. I have tried but it didn't worked. Any alternate way??

#include <fstream>
#include <iostream>
using namespace std;
int main()
{
ofstream printer( "prn" );
if (!printer)
{
cout <"fooey!\n";
return 1;
}
printer << "Hello world!\n";
printer.close();
cout << "HEllo";
return 0;
}

CPallini22-Dec-08 23:46

22-Dec-08 23:46

Have you ever heard about Google? See, for instance [^].
Smile | :)

Hamid_RT23-Dec-08 0:14

Hamid_RT

23-Dec-08 0:14

Yeah and I heard about www.cpallini...com,too!

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

CPallini23-Dec-08 0:31

23-Dec-08 0:31

You're right: even if he has never heard about Google, he must know about www.cpallini.freeproductz.com.
Big Grin | :-D

Iain Clarke, Warrior Programmer

Iain Clarke, Warrior Programmer23-Dec-08 10:03

23-Dec-08 10:03

I have sooooo got to register that domain some time...

Iain.

CPallini23-Dec-08 10:21

23-Dec-08 10:21

That's fine, provided the productz remain free. Laugh | :laugh:

CFileDialog

AnithaSubramani22-Dec-08 23:22

AnithaSubramani

22-Dec-08 23:22

Hi All,

I have created the CFileDialog for open the .txt file.I need to add my own controls to a CFileDialog with out SDI implementation.

Pls help me.................

Thanks & Regards,

Anitha

Re: CFileDialog

CPallini22-Dec-08 23:42