C / C++ / MFC

Re: Menu item is displyed as "@xyz@"...

2-Apr-08 5:11

ptr_Electron wrote:
how to handle this friends

Fix it friend

led mike

ptr_Electron2-Apr-08 5:39

ptr_Electron

2-Apr-08 5:39

Thanks for ur responce friend

Re: Menu item is displyed as "@xyz@"...

Hamid_RT7-Apr-08 4:08

Hamid_RT

7-Apr-08 4:08

Did you use of ANSI code?

reg., CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG

ganesa moorthy2-Apr-08 4:50

ganesa moorthy

2-Apr-08 4:50

Where we can get CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG in our application ? Confused | :confused:

Anyone Please help on this.

Thanks a Lot Rose | [Rose]

Thanks a lot

Re: reg., CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG

Mark Salsbery2-Apr-08 6:08

Mark Salsbery

2-Apr-08 6:08

The source code is included with Visual Studio.

CImage uses GDI+ to load and save images. The loaded GDI+ image is converted to a DIBsection, which is
wrapped by the CImage class.

The loading code is similar to this (without the conversion to a DIBSection):

    ULONG dwToken;
    Gdiplus::GdiplusStartupInput input;
    Gdiplus::GdiplusStartupOutput output;
    Gdiplus::Status status = Gdiplus::GdiplusStartup(&dwToken, &input, &output);
    if(status == Gdiplus::Ok)
    {
        Gdiplus::Bitmap *pSrcBitmap = new Gdiplus::Bitmap(L"C:\\test.jpg", FALSE);

        <font color="Green">//... use the bitmap ...</font>

        delete pSrcBitmap;

        Gdiplus::GdiplusShutdown(dwToken);
    }

Mark

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

Re: reg., CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG

ganesa moorthy3-Apr-08 19:36

ganesa moorthy

3-Apr-08 19:36

Actually i am sure, there is no manual for CImage, in MS Visual Studio though it is included. If so what header i need to include to proceed?

Thanks for your response! Rose | [Rose]

Thanks a lot

Re: reg., CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG

Mark Salsbery4-Apr-08 6:04

Mark Salsbery

4-Apr-08 6:04

atlimage.h in VS 2008 - most of it is inline.

It used to be an MFC class so it was a different header file before.

What version of Visual Studio are you using?

If you don't have a VS version that has the class, you can always use GDI+ directly, as I showed in the sample code.

Mark

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

Re: reg., CImage sources (UNICODE COMPATIBLE) to load GIF, JPEG

Hamid_RT7-Apr-08 4:07

Hamid_RT

7-Apr-08 4:07

you can find it on the its header file.

Mixed metaphor problem

Matthew Faithfull2-Apr-08 4:22

2-Apr-08 4:22

Does anyone here know a way of using the value of a constant class member in an #if condition.
What I'd like to do for example is :-

<br />
class CSomething<br />
{<br />
  public:<br />
<br />
  //...<br />
  enum<br />
  {<br />
    E_IsCool = 1;<br />
  };<br />
};<br />
<br />
//Then later conditional compilation based on E_IsCool<br />
<br />
#if (CSomething::E_IsCool)<br />
//Insert cool code here<br />
#else<br />
//Insert uncool code here<br />
#endif<br />
<br />

This may seem unnecessary when there is only one CSomething but I have several different ones, some cool some not and then a typedef is used to give one of them the name that is actually used. I'm trying to avoid peppering the classes with #defines and #undefs

Nothing is exactly what it seems but everything with seems can be unpicked.

Re: Mixed metaphor problem [modified]

Nemanja Trifunovic2-Apr-08 4:42

Nemanja Trifunovic

2-Apr-08 4:42

I think some template meataprogramming[^] would serve you better than the preprocessor #if

Programming Blog

utf8-cpp

Matthew Faithfull2-Apr-08 4:50

2-Apr-08 4:50

Yes it would normally and I've been thinking about using it. There is one small snag though. What if the conditional code is something like this:-

<br />
#if (CSomething::E_IsCool)<br />
#define _LONG_SUFFIX(_X) _X#L<br />
#else<br />
#define _LONG_SUFFIX(_X) _X<br />
#endif<br />

I can't find any way to pull in things like this that seem to have to be macros conditionally at the moment and I'm only really sold on going the template-mp route if I can do it all that way. Unsure | :~

Nothing is exactly what it seems but everything with seems can be unpicked.

modified on Wednesday, April 2, 2008 10:59 AM

CPallini2-Apr-08 4:50

CPallini

2-Apr-08 4:50

Matthew Faithfull wrote:
This may seem unnecessary when there is only one CSomething but I have several different ones, some cool some not and then a typedef is used to give one of them the name that is actually used

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

Matthew Faithfull2-Apr-08 5:06

2-Apr-08 5:06

I was trying to keep the example simple, obviously I failed Smile | :)

<br />
class CSomething<br />
{<br />
public:<br />
<br />
  //...<br />
  enum<br />
  {<br />
    E_IsCool = 1;<br />
  };<br />
};<br />
<br />
<br />
#ifdef USE_MYSOMETHING<br />
typedef CMySomething CSomething<br />
#else<br />
//Other CSomething alternatives<br />
#endif<br />
<br />
<br />
//Then later conditional compilation based on E_IsCool<br />
<br />
#if (CMySomething::E_IsCool)<br />
#define _LONG_SUFFIX(_X) _X#L<br />
#else<br />
//Insert uncool code here<br />
#define _LONG_SUFFIX(_X) _X<br />
#endif<br />
<br />

This is closer to what I'm really doing which is somewhat more complicated. It has to work on different compilers as that really is the point of this so any template tricks will need to be MSVC6 friendly

Nothing is exactly what it seems but everything with seems can be unpicked.

led mike2-Apr-08 5:10

2-Apr-08 5:10

Wow. So you don't know what a "pre" processor is in the context of a compiler?

led mike

Matthew Faithfull2-Apr-08 5:16

2-Apr-08 5:16

Yes Mike I do know and am not expecting the example code I posted to work. I need something functionally equivalent to what it would do if it did work, i.e. if the PRE-processor was C++ aware. If you're telling me there's no way to control conditional compilation using compile time constants then just come out and say so.

Nothing is exactly what it seems but everything with seems can be unpicked.

led mike2-Apr-08 5:31

2-Apr-08 5:31

Matthew Faithfull wrote:
Yes Mike I do know

What, then why have you asked this question? I mean if you know then you know so why ask the question? Wait, now I remember trying to have a logical discussion with you in the SoapBox, never mind.

led mike

Matthew Faithfull2-Apr-08 5:50

2-Apr-08 5:50

Yes, you didn't understand the use of a metaphor then and you clearly still don't.

Nothing is exactly what it seems but everything with seems can be unpicked.

led mike2-Apr-08 5:54

2-Apr-08 5:54

Metaphor this you f***ing idiot

led mike

CPallini2-Apr-08 5:18

CPallini

2-Apr-08 5:18

I see no alternatives to using define in your classes.
Smile | :)

BTW why cannot you use USE_MYSOMETHING to distinguish between suffixes?

Matthew Faithfull2-Apr-08 5:28

2-Apr-08 5:28

You may be right I was hoping someone would have a brainwave. Sigh | :sigh:

The reason I wouldn't use USE_MYSOMETHING is because it isn't really that simple, that would be the equivalent of one case in a page long block of #if #elif #endif code, not something I'd want to repeat in more than one place. I'm left with using that lump of code to #define yet another symbol e.g. USE_SUFFIXES and then using that. It's what everyone else does but I was hoping to improve on the state of the art Big Grin | :-D

Nothing is exactly what it seems but everything with seems can be unpicked.

led mike2-Apr-08 5:37

2-Apr-08 5:37

Matthew Faithfull wrote:
It's what everyone else does but I was hoping to improve on the state of the art

You should stick with learning the current state of the art before you decide to try and improve it. Roll eyes | :rolleyes:

led mike

Matthew Faithfull2-Apr-08 5:49

2-Apr-08 5:49

Where were you I wonder when I successfully ported Jaakko Järvi's tuple class to MSVC6, 9 months before the Boost developers managed it?
If you don't have anything useful to contribute you should stick to the Soapbox or better yet not post. Hmmm | :|

Nothing is exactly what it seems but everything with seems can be unpicked.

led mike2-Apr-08 5:53

2-Apr-08 5:53

Yeah try to prove you know what you are doing by citing some project you did, good one. To late, the cat's out of the bag now.

Matthew Faithfull wrote:
you should

What? I should what, take your advice? Laugh | :laugh:

When hell freezes over dude, when pigs fly, when bears sh*t in the woods, when, wait, well you get the idea.

led mike