Re: CxImage class - C / C++ / MFC Discussion Boards

JesGDev28-Jul-06 22:19

28-Jul-06 22:19

I wrote a class derived from CSliderCtrl to use the custom draw to paint the control in a dialog based app. I want to disable the focus rectangle from being drawn, but I cannot at all figure it out. Any help / ideas would be greatly appreciated.

Re: slider control help

Naveen28-Jul-06 23:06

Naveen

28-Jul-06 23:06

overide the WM_SETFOCUS message. from that funtion, do not call the base calls function.

eg:-

void MySliderCtrl::OnSetFocus(CWnd* pOldWnd)
{
// CSliderCtrl::OnSetFocus(pOldWnd); this line is removed

}

nave

Re: slider control help

JesGDev29-Jul-06 7:26

JesGDev

29-Jul-06 7:26

Hi, thanks for your response. I just tried that and it does not seem to work. When I use the keyboard to move the slider, the focus rectangle still appears.

Re: slider control help

Justin Tay29-Jul-06 11:45

Justin Tay

29-Jul-06 11:45

It actually *should* work I believe, just that the control doesn't receive keyboard input since it doesn't have focus (if you think about it, if it never receives focus, it never has to draw the focus rect).

Since you can move the slider using the keyboard, it appears that your slider does actually have focus (unless you happen to be forwarding messages from the parent window).

Here's another method that works even though it has focus which I've used before. Just use custom draw and remove the CDIS_FOCUS bit from uItemState (uItemState &= ~CDIS_FOCUS) during the CDDS_PREPAINT phase.

The user might be confused without the focus rect though. I notice that windows media player 11 puts on the focus rect for a while if the slider actually has focus and receives keyboard input.

Re: slider control help

JesGDev29-Jul-06 12:01

JesGDev

29-Jul-06 12:01

THANK YOU....removing that bit works like a charm. Its weird tho, because i figured the override OnSetFocus would've worked too, but it did not. And you were correct, I am forwarding WM_KEYDOWN messages from the parent window to the slider. I guess thats why. Thanks very much for your help.

CxImage class

includeh1028-Jul-06 22:19

includeh10

28-Jul-06 22:19

I want to use CxImage (or others) to open multiple types of images (gif,jpg,bmp,ico etc) then transfer image files in memory (not save to disk) in bitmap format which includes BITMAPINFOHEADER and data.

any comments for how to use CxImage (or others) to do that?

Re: CxImage class

Jay Zhu29-Jul-06 7:28

Jay Zhu

29-Jul-06 7:28

I think you can use CImage by including atlimage.h if you are not using VC6.0

There is no dumb question
<bjay zhu@shanghai,="" china<="" b="">

Re: CxImage class

spacecadet1029-Jul-06 16:06

spacecadet10

29-Jul-06 16:06

Hey, i've used this lib in my app and it's really easy to use.
Read the docs that tell you which libs to include (depending on what image support you want) include them in your project, include the main header somewhere in your source.

bool CxImage::Load  (  const TCHAR *  filename,  <br />
  DWORD  imagetype = 0 <br />
 )  [inherited]

Reads from disk the image in a specific format.

If decoding fails using the specified image format, the function will try the automatic file format recognition.

Parameters:
filename: file name
imagetype: file format, see ENUM_CXIMAGE_FORMATS

Returns:
true if everything is ok

bool CxImage::Encode  (  BYTE *&  buffer,  <br />
  long &  size,  <br />
  DWORD  imagetype <br />
 )  [inherited]

Saves to memory buffer the image in a specific format.

Parameters:
buffer: output memory buffer pointer. Must be NULL, the function allocates and fill the memory, the application must free the buffer, see also FreeMemory().
size: output memory buffer size.
imagetype: file format, see ENUM_CXIMAGE_FORMATS

use the Get...() functions to fill the header info

add api functions to pe file

zon_cpp28-Jul-06 21:33

zon_cpp

28-Jul-06 21:33

Hi!
I want change Import Table of a pe file.
I want to add api functions, that they aren't in Import Table.
For example if "LoadLibraryA" Function there isn't in listed functions of Import Table,
I want to add it to Import Table of file,
then with software tools, i see this function in listed functions.

Zo.Naderi-Iran

How to use CImage class in VC++ 6.0 ?

Vinod Sankaranarayanan28-Jul-06 20:39

Vinod Sankaranarayanan

28-Jul-06 20:39

Hi,

I had created one MFC project without ATL support.

I want to use CImage class in my program.

I tried to put the header file "atlimage.h" & "afxstr.h" in my dialogs

.h file. ( As said in one MSDN article.)

But i got the following error !

"fatal error C1083: Cannot open include file: 'atlimage.h': No such file or directory "

Is it possible to insert ATL/MFC shared classes in VC++ 6?

Is there any other way to do it ?

Thanks in advance....

vinsankar

Re: How to use CImage class in VC++ 6.0 ?

Naveen28-Jul-06 21:18

Naveen

28-Jul-06 21:18

see this answer

http://www.codeproject.com/script/comments/forums.asp?msg=1601233&forumid=1647#xx1601233xx[^]

nave

Re: How to use CImage class in VC++ 6.0 ?

Vinod Sankaranarayanan28-Jul-06 21:34

Vinod Sankaranarayanan

28-Jul-06 21:34

Hi,

So , I cannot use CImage in VC++ 6.0

Is there any way put a JPEG image to my Dialog background.

I tried to use "CBitmapPicture" class provided with one of the codeproject article.

But It uses a static picture control to display the JPG file.

But when I used it in my project, I got an error.

How will I load a JPG image and fill my dialog background without using static controls?

Can any one help me ?

thanks in advance.....

vinsankar

Re: How to use CImage class in VC++ 6.0 ?

Naveen28-Jul-06 21:37

Naveen

28-Jul-06 21:37

u can use the Image class in the GDI+

nave

Re: How to use CImage class in VC++ 6.0 ?

Hamid_RT28-Jul-06 21:44

Hamid_RT

28-Jul-06 21:44

You can use OleLoadPicture or GDI+(Graphics and Image::FromFile(...) instead CImage class

WhiteSky

eve dataMS ACCSEE in VC++

thelip28-Jul-06 20:21

thelip

28-Jul-06 20:21

Hi Please make me Done...

I have to connect MS Access database and retrieve data from vc++....

Can any please guide me or provide me link to study , i am new to vc++....

thanks in ADvaNcE

Hai this is fresh programer

Re: eve dataMS ACCSEE in VC++

_AnsHUMAN_ 28-Jul-06 20:54

_AnsHUMAN_

28-Jul-06 20:54

See Here.[^]

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: eve dataMS ACCSEE in VC++

Hamid_RT28-Jul-06 21:50

Hamid_RT

28-Jul-06 21:50

See Retrieving, Writing, and Creating Data in a Microsoft Access File (CDaoDatabase and CDaoRecordset)[^]

WhiteSky

compile errors

WebMaster28-Jul-06 19:27

WebMaster

28-Jul-06 19:27

can anyone tell me why i get a compilation error in vs2002 whenever i try to use cimage or cdc?

it says:
error C2065: 'CImage' : undeclared identifier
and
error C2065: 'CDC' : undeclared identifier

ive reinstalled vs and it didnt help.

thanks for the help!

Re: compile errors

_AnsHUMAN_ 28-Jul-06 21:00

_AnsHUMAN_

28-Jul-06 21:00

UnderWing wrote:
i try to use cimage or cdc

What type of application are you working on? MFC, SDK
I think that CImage class is provided in VC7.0(.NET 2003)

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: compile errors

Hamid_RT28-Jul-06 21:44

Hamid_RT

28-Jul-06 21:44

You need to include AtlImage.h

WhiteSky

Re: compile errors

Hamid_RT28-Jul-06 21:53

Hamid_RT

28-Jul-06 21:53

And for CDC you need to Afxwin.h

WhiteSky

Re: compile errors

WebMaster29-Jul-06 7:12

WebMaster

29-Jul-06 7:12

thanks for the replies.

im creating an mfc app.

i can use cimage after including AtlImage.h, but if i include afxwin.h i get:

fatal error C1189: #error :  WINDOWS.H already included.  MFC apps must not #include <windows.h><br />

any other suggestions? thanks

-- modified at 13:10 Saturday 29th July, 2006

Re: compile errors

Hamid_RT30-Jul-06 3:10

Hamid_RT

30-Jul-06 3:10

Whats application type?

WhiteSky

how do I save a bitmap to hard-disk?

Ștefan-Mihai MOGA28-Jul-06 13:48

Ștefan-Mihai MOGA

28-Jul-06 13:48

Could you please tell me how to save to disk a bitmap stored in a HBITMAP structure? thanks in advance.

Re: how do I save a bitmap to hard-disk?

valikac28-Jul-06 15:22

valikac

28-Jul-06 15:22

check out these structures

BITMAPINFO
DIBSECTION
BITMAPFILEHEADER
ofstream

post when need more clues

Kuphryn

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