Re: Template magic - C / C++ / MFC Discussion Boards

Re: i need some opinion on displaying fonts in dialog box.

cyn813-Jan-07 22:39

13-Jan-07 22:39

hey everyone,
Thanks far all the reply. I've manage to do it by using the static text and from reading the articles from this website for examples.
Thanks

Re: i need some opinion on displaying fonts in dialog box.

Kotesh.N10-Jan-07 22:27

Kotesh.N

10-Jan-07 22:27

i think this site will help you alot www.flounder.com, download option will be there and click the option there win32progming will be appeared, download the al;l the code to your pc.

Chinna

Re: i need some opinion on displaying fonts in dialog box.

Kotesh.N10-Jan-07 22:36

Kotesh.N

10-Jan-07 22:36

this site will help you alot in win32 programing

http://www.flounder.com/download.htm#Complete%20Win32%20CD%20Contents

click Complete Win32 CD Contents

Chinna

Template magic

hint_5410-Jan-07 12:41

hint_54

10-Jan-07 12:41

launcher.obj : error LNK2001: unresolved external symbol "public: __thiscall tLgInteger<class std::vector<unsigned long,class std::allocator<unsigned long> >,unsigned __int64>::tLgInteger<class std::vector<unsigned long,class std::allocator<unsigned long> >,unsigned __int64>(unsigned long)" (??0?$tLgInteger@V?$vector@KV?$allocator@K@std@@@std@@_K@@QAE@K@Z)

Poke tongue | ;-P

hint_54

Re: Template magic

toxcct10-Jan-07 12:44

toxcct

10-Jan-07 12:44

hint_54 wrote:
launcher.obj : error LNK2001: unresolved external symbol "public: __thiscall tLgInteger<class std::vector<unsigned="" long,class="" std::allocator<unsigned="" long=""> >,unsigned __int64>::tLgInteger<class std::vector<unsigned="" long,class="" std::allocator<unsigned="" long=""> >,unsigned __int64>(unsigned long)" (??0?$tLgInteger@V?$vector@KV?$allocator@K@std@@@std@@_K@@QAE@K@Z)

huuuu

where is the question ?

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Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: Template magic

hint_5410-Jan-07 12:50

hint_54

10-Jan-07 12:50

No question Wink | ;)

just found that funny Laugh | :laugh:

hint_54

Re: Template magic

toxcct10-Jan-07 12:51

toxcct

10-Jan-07 12:51

i may be missing something there, but, what's funny in this ?

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Re: Template magic

hint_5410-Jan-07 12:58

hint_54

10-Jan-07 12:58

This was the line that produced that error

tLgInteger<tVector, tOC>::tLgInteger( tElement nValue )

So it's just like CPallini said: "No more alcohol to the linker!" Poke tongue | ;-P

hint_54

Re: Template magic

Stephen Hewitt10-Jan-07 17:49

Stephen Hewitt

10-Jan-07 17:49

Yes, but tLgInteger is a template as is tVector. All these template parameters have to be encoded into the typename. Ignoring the long typename (it is of no consequence anyway) the error is simple: the constructor is declared but not defined.

Steve

No more alcohol to the linker!

CPallini10-Jan-07 12:47

CPallini

10-Jan-07 12:47

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.

Hmm..

Rajesh R Subramanian10-Jan-07 18:32

Rajesh R Subramanian

10-Jan-07 18:32

Interesting Big Grin | :-D

Btw.. My 1 too.

Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா

Re: Hmm..

toxcct10-Jan-07 20:07

toxcct

10-Jan-07 20:07

brahmma wrote:
Btw.. My 1 too.

Don't know where to start ?
Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

Mine?

CPallini10-Jan-07 21:57

CPallini

10-Jan-07 21:57

Mine?

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.

Using accelerators with child windows

KellyR10-Jan-07 10:31

KellyR

10-Jan-07 10:31

Hi, I'm having a problem using accelerators in VC++.

My accelerators (defined in the Accelerator Table in my resource file, loaded up using LoadAccelerators and run using TranslateAccelerator)) work fine in the main application window, but I can't seem to get them to work in the child windows of my application. If the focus is on the main window the accelerators will work, but once the focus falls into a child window, accelerators no longer function. I only need the accelerators to work in a single child window (a listbox, to be exact), and I don't need them in the main application window.

Thanks!

classes and the namespace operator ::

kitty510-Jan-07 10:19

kitty5

10-Jan-07 10:19

okey dokey.
I have 2 classes:
class imageViewer{...};
class camData{...};

imageViewer has a function called funcA();
camData has a function called funcB();

I wanted to call funcA; in funcB();
i.e.:i've tried both:

<br />
#include "imageViewer.h"<br />
void camData::funcB()<br />
{<br />
..<br />
   imageViewer::funcA();<br />
}<br />

I get this error:
error C2352: 'ImageViewer::showPicture' : illegal call of non-static member function

-AND-

<br />
#include "imageViewer.h"<br />
void camData::funcB()<br />
{<br />
..<br />
   funcA();<br />
}<br />

I get this error:
error C3861: 'showPicture': identifier not found

could someone please tell me my idiotic mistake.....

thanks,
Kitty

Kitty5

Re: classes and the namespace operator ::

Cedric Moonen10-Jan-07 10:23

Cedric Moonen

10-Jan-07 10:23

Well, in order to call a function (non-static) from a class, you first need to have an instance of your class. So, doing something like that (suppose MyClass is a class that defines funcA):

MyClass A;<br />
A.funcA();

You cannot simply do
MyClass::funcA();

Cédric Moonen
Software developer

Charting control [v1.1]

Re: classes and the namespace operator ::

kitty510-Jan-07 10:26

kitty5

10-Jan-07 10:26

:Cedric,

thanks very much for your advice.
I knew it was something simple that I was missing...

thanks!
Kitty Big Grin | :-D

Kitty5

Re: classes and the namespace operator ::

prasad_som10-Jan-07 16:06

prasad_som

10-Jan-07 16:06

kitty5 wrote:
..
imageViewer::funcA();

To make such call possible. finA() must be static function of class imageViewer.

Prasad
Notifier using ATL | Operator new[],delete[][^]

number of entry points in a dll

mikeqin10-Jan-07 9:37

mikeqin

10-Jan-07 9:37

What is the maximum number of entry points a Win32 dll can export? if no limitation, would too many entry points affect performance or cause any other issues?

Thanks in advance!
Mike

Re: number of entry points in a dll

Mark Salsbery10-Jan-07 11:17

Mark Salsbery

10-Jan-07 11:17

By entry points I assume you mean exported functions?

Ordinals are limited to WORD size (16-bit, unsigned) but I don't know if you can have an
unlimited number of exports by name.

Exporting by ordinal instead of name saves DLL size and linking to the DLL is faster. I suppose
the more functions that need to be linked to, the longer it will take to link.

I'm sure this helps very little Smile | :)

Mark

Capture video

Yevgeny Efter10-Jan-07 9:33

Yevgeny Efter

10-Jan-07 9:33

Hello!

I would like to capture video from a camera, but I just can't find information about it... I found some articles, but there are no explanations there...

Maybe anybody knows where can I find information about it?

Thanks in advance!

Re: Capture video

Like2Byte10-Jan-07 9:58

Like2Byte

10-Jan-07 9:58

I depends on the equipment you're using. If you're using a USB camera then you're halfway there.

The two biggie webcam manufacturers provide SDKs for their cameras; but, one involves signing an NDA.

The other is freely available. (But, of course, I forget who at the moment.)

Other cameras (analog) would require digitizers, which, I imagine, would be rather expensive. Compound that with whether an SDK is available.

Then of course, IP camera's are a whole other beast.

Re: Capture video

Yevgeny Efter10-Jan-07 16:58

Yevgeny Efter

10-Jan-07 16:58

What about DirectX? Does it give me any tools?

Re: Capture video

Mark Salsbery10-Jan-07 19:17

Mark Salsbery

10-Jan-07 19:17

There's Video for Windows (VFW) if the device supports it.

In DirectX there's DirectShow (SDK is in the Platform SDK, not the DirectX SDK) which will work
with both legacy VFW drivers as well as WDM drivers.

Mark

Re: Capture video

Haroon Sarwar10-Jan-07 19:42

Haroon Sarwar

10-Jan-07 19:42

DirectShow is probably the best way...

http://www.codeproject.com/audio/DXCapture.asp

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