C / C++ / MFC Discussion Boards

Re: how to splice two big image

Russell^'17-Sep-07 3:03

Russell^'

17-Sep-07 3:03

Lao Wang wrote:
is there good ways to process so big image?

the simplest one: pixel per pixel ...

i.e. do not use any build-in function, because they are surely not tested on very big images.

Russell

Re: how to splice two big image

King Tran17-Sep-07 3:20

King Tran

17-Sep-07 3:20

thanks Russell

but processing the two big image by pixel per pixel, consumes all my memory.

Re: how to splice two big image

Russell^'17-Sep-07 3:23

Russell^'

17-Sep-07 3:23

are the images in BMP format?
can you work without load they into the memory i.e. loading/storing pixels from/into the files?

Russell

Re: how to splice two big image

King Tran17-Sep-07 3:32

King Tran

17-Sep-07 3:32

yes, the two images are BMP format.

would you please detail your suggestion? the images are .bmp file in my hard disk. how can i load the pixels from the file and process the pixels without loading them into memory?
thanks

Re: how to splice two big image

Russell^'17-Sep-07 3:45

Russell^'

17-Sep-07 3:45

Lao Wang wrote:
yes, the two images are BMP format

great!!

Lao Wang wrote:
how can i load the pixels from the file and process the pixels without loading them into memory?

Here[^] or here[^] you can find how it is stored an image into a BMP file. i.e. how it is writed the file header.
Writing some lines of code you can load a pixel from the source image and then store into the output image...to let the processing be faster work row per row.
Probally you can find some code ready somewhere (also on CP) to access to the file.
good luck
Rose | [Rose]

Russell

Re: how to splice two big image

King Tran17-Sep-07 14:08

King Tran

17-Sep-07 14:08

thanks Russell, i will try it as your suggestion! Big Grin | :-D

Re: how to splice two big image

Russell^'17-Sep-07 21:39

Russell^'

17-Sep-07 21:39

good luck

Russell

want to add picture in dialog box

Dhiraj kumar Saini17-Sep-07 0:50

Dhiraj kumar Saini

17-Sep-07 0:50

I want to add picture in mydialog box for wallpaper as is in the case of Webshots. Anyone tell me which control to use along with the code and functions.

Please help me.

Thanks In advance.

Dhiraj

Dhiraj Kumar Saini

Re: want to add picture in dialog box

Russell^'17-Sep-07 1:15

Russell^'

17-Sep-07 1:15

draw it during CDialog::OnEraseBkgnd

Russell

Re: want to add picture in dialog box

Programm3r17-Sep-07 1:15

Programm3r

17-Sep-07 1:15

Have a look at this site[^], just search for the dialog component on the window.

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: want to add picture in dialog box

Hamid_RT17-Sep-07 2:00

Hamid_RT

17-Sep-07 2:00

Load your image with CImage class or LoadImage function and then use of WM_ERASEBKGND event.

Re: want to add picture in dialog box

Hamid_RT17-Sep-07 1:59

Hamid_RT

17-Sep-07 1:59

Does he need to search on the www.functionx.com while we have www.codeproject.com?;)

Re: want to add picture in dialog box

Dhiraj kumar Saini17-Sep-07 2:42

Dhiraj kumar Saini

17-Sep-07 2:42

its not clear can you just send me the code

Please and let me tell you i am using Picture Box control and it is mfc application and not win32.

Thanks

Dhiraj kumar Saini

Re: want to add picture in dialog box

Iain Clarke, Warrior Programmer17-Sep-07 5:27

Iain Clarke, Warrior Programmer

17-Sep-07 5:27

As has been said, have a look in the dialog section here on codeproject - you'll find many articles on the subject. If browsing the website and looking at pictures on articles is too hard for you, then it's not fair to expect others to put in more effort.

Iain.

Re: want to add picture in dialog box

Hamid_RT18-Sep-07 2:48

Hamid_RT

18-Sep-07 2:48

If you are using a control like CStatic see this code

CImage m_Image;
m_Image.Load(yourimage);
m_Control.SetBitmap(m_Image.Detach());

Re: want to add picture in dialog box

Dhiraj kumar Saini18-Sep-07 3:24

Dhiraj kumar Saini

18-Sep-07 3:24

I am using MFC and not ATL so CImage is undeclared identifier.

Dhiraj

Re: want to add picture in dialog box

Hamid_RT18-Sep-07 19:35

Hamid_RT

18-Sep-07 19:35

So you can use of OleLoadPicture and for use of this function see articles about it on the codeproject.

inserting checkbox in multicolumn ClistCtrl and set width of columns

Dhiraj kumar Saini16-Sep-07 23:40

Dhiraj kumar Saini

16-Sep-07 23:40

I am using a list control in my dialog box whose id is IDC_LIST1 and now i want that oninitdialog function the width of the columns should be fixed and
then we have to insert a checkbox into the column,

Please help me.
Thanks in advance.
Dhiraj

Dhiraj Kumar Saini

-- modified at 6:29 Monday 17th September, 2007

Re: inserting checkbox in multicolumn ClistCtrl and set width of columns

Sreedhar DV17-Sep-07 1:31

Sreedhar DV

17-Sep-07 1:31

look at this...

http://www.codeproject.com/listctrl/ReportControl.asp

Sreedhar DV

[Real success is having courage to meet failure without being defeated.]

Re: inserting checkbox in multicolumn ClistCtrl and set width of columns

Hamid_RT17-Sep-07 2:04

Hamid_RT

17-Sep-07 2:04

I dont see content of this article XListCtrl - A custom-draw list control with subitem formatting[^] of Mr Hans Dietrich but I think it can solves your problem.

inline or not inline...this is the problem

Russell^'16-Sep-07 23:34

Russell^'

16-Sep-07 23:34

Does anybody know why inline keyword isn't always understanded from the compiler/linker?
I like to use inline as often as possible (to all the member functions!!), but sometimes it gives me a linker error (function not found) so I cut it:

in file.h

inline double foo(...);

and in file.cpp

inline double foo(...){
..
}

then it works!!! OMG | :OMG:

Does this happens only to me?

(I'm using VS 2003 .NET, and 2002)

Russell

Re: inline or not inline...this is the problem

Matthew Faithfull17-Sep-07 0:09

Matthew Faithfull

17-Sep-07 0:09

To get inlining to work you generally need to implement the function in the header file. i.e. no separate declaration and definition, all in one like:-

in file.h

<br />
inline double foo(/*...*/)<br />
{<br />
//...<br />
}<br />

Note that there are numerous reasons why the MS C++ Compiler might refuse to inline or auto inline functions without being asked not all of which are even publicly documented. There is no way to gaurantee inlining even using __force_inline the compiler can still ignore the instruction. Also inlining tends to disappear in Debug builds as compared with Release so it's difficult to prove whether it's happening or not wihtout examining Release code at the assembly level. Any kind of instrumentation or leaving debug information in is quite likely to alter the compiler's inlining decisions anyway. Microsoft's take is basically truct the compiler and don't worry about it.

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

Re: inline or not inline...this is the problem

Russell^'17-Sep-07 0:34

Russell^'

17-Sep-07 0:34

Matthew Faithfull wrote:
all in one

you are right!
I need to check! Smile | :)

Matthew Faithfull wrote:
__force_inline

I was also looking to __fastcall...
I have a lot of small functions that are there only to let the code be more readable...but I need at the same time high performances.
Many of them are some simple wrappers to other functions, inline looks necessary. Cry | :((

Thanks for your time;)

Russell

Re: inline or not inline...this is the problem

C^hris L^osinger17-Sep-07 3:26

C^hris L^osinger

17-Sep-07 3:26

Russell` wrote:
Many of them are some simple wrappers to other functions, inline looks necessary.

if you really want them to be inlined, you can always use simple #define macros.

image processing toolkits | batch image processing

Re: inline or not inline...this is the problem

Russell^'17-Sep-07 3:45

Russell^'

17-Sep-07 3:45

it is true!

Thanks;)

Russell

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