C / C++ / MFC Discussion Boards

Re: How to get the deleted character

Cedric Moonen2-Jun-05 3:17

Cedric Moonen

2-Jun-05 3:17

Which character ????

Re: How to get the deleted character

Veera Raghavendra2-Jun-05 3:22

Veera Raghavendra

2-Jun-05 3:22

Actually i am developing screen reader software. In this application if user presses baca space in the msword or any application i want to catch that charcter and to be supplied to speech engine. Ex:
if following is the text in the application.

hello good morning every body.

i started deleting letter by letter g,n,i,n,r,o,m. now i want to know which character is deleted. Please let me know.

Thanking you,

E.Veera Raghavendra.

Re: How to get the deleted character

Cedric Moonen2-Jun-05 4:13

Cedric Moonen

2-Jun-05 4:13

I'm not sure I understand your question...
So, you say you have Word (or another application) open and your application that is also open. The user write something in Word and then delete it. You want to retrieve in your application what the user has deleted ? Is that correct ?
It looks really strange to me... But ok there could be option like using hooks on Word inside your application (that will allow you to retrive all keys that are pressed in Word). But I don't have a lot of knowledge in that field. Take a look on this site, I think there are a lot of articles that cover this subject.

If it is not what you were asking for, then try to reformulate your question a little bit clearer

Re: How to get the deleted character

Veera Raghavendra2-Jun-05 18:36

Veera Raghavendra

2-Jun-05 18:36

Actually i am using hooking technology. ya, i want what the user deleted. U r assumption is correct.

Rose | [Rose]

e.veera raghavendra

Re: How to get the deleted character

S. Senthil Kumar2-Jun-05 6:01

S. Senthil Kumar

2-Jun-05 6:01

You can write a keyboard hook to do that. Look for SetWindowsHookEx Win32 API function.

Regards
Senthil
_____________________________
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Owner / Custom Drawing a Header Control

Steve Thresher2-Jun-05 3:02

Steve Thresher

2-Jun-05 3:02

I am trying to handle drawing a header control so that I can support
multi-line items. It tried both owner and custom draw but neither will tell
me the control is 'hot' when the mouse is over it. Everything is ok if I
revert back to standard drawing so the window styles must be right. Can
anyone suggest what is wrong?

Systems AXIS Ltd - Software for Business ...

showwindow

Stirfie2-Jun-05 2:45

Stirfie

2-Jun-05 2:45

This may be a simple thing but I,m stuck. In the last function of this class I am trying to show m_image_new. This is not for a serious project I am just learning, but the project will not compile. The class is:-

// dlg_new.cpp : implementation file
//

#include "stdafx.h"
#include "EditTest.h"
#include "dlg_new.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// dlg_new dialog

dlg_new::dlg_new(CWnd* pParent /*=NULL*/)
: CDialog(dlg_new::IDD, pParent)
{
//{{AFX_DATA_INIT(dlg_new)
m_image_new = _T("");
//}}AFX_DATA_INIT
}

void dlg_new::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(dlg_new)
DDX_Control(pDX, IDC_BUTTON_IMAGE, m_image_button);
DDX_Text(pDX, IDC_STATIC_IMAGE, m_image_new);
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(dlg_new, CDialog)
//{{AFX_MSG_MAP(dlg_new)
ON_COMMAND(ID_VIEW_NEW, OnViewNew)
ON_BN_CLICKED(IDC_BUTTON_IMAGE, OnButtonImage)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// dlg_new message handlers

void dlg_new::OnViewNew()
{
// TODO: Add your command handler code here

}

void dlg_new::OnButtonImage()
{
//using ::CWnd;
m_image_new.CWnd::ShowWindow( SW_SHOW );
// TODO: Add your control notification handler code here

}
The error I get is that CWnd is not a member of CString.

Please help
regards
Paul

Re: showwindow

P-Rex2-Jun-05 2:48

P-Rex

2-Jun-05 2:48

Try
GetDlgItem(IDC_STATIC_IMAGE)->ShowWindow(SW_SHOW);
instead of
m_image_new.CWnd::ShowWindow( SW_SHOW );

Re: showwindow

Stirfie2-Jun-05 4:20

Stirfie

2-Jun-05 4:20

Thanks, this worked.

Regards
Paul

Re: showwindow

ddmcr2-Jun-05 3:00

ddmcr

2-Jun-05 3:00

Stirfie wrote:
I am trying to show m_image_new
what do you mean ???

i think m_image_new is a CString variable and i completely don't understand
what you're trying to do with this :

m_image_new.CWnd::ShowWindow( SW_SHOW );

"Go as far as you can see,and when you get there you’ll see further" - Unknown

how to calculate the Date? thanks

qqworm2-Jun-05 2:37

qqworm

2-Jun-05 2:37

Today is "2005-6-2", if I add 100 days to it, the day is...? I don't known how to calculate it. for help, thanks.

qqworm

Re: how to calculate the Date? thanks

Cedric Moonen2-Jun-05 2:41

Cedric Moonen

2-Jun-05 2:41

If you use MFC, you can use the CTime and CTimeSpan classes, they will allow you to do exactly what you are looking for.

Re: how to calculate the Date? thanks

qqworm2-Jun-05 3:08

qqworm

2-Jun-05 3:08

Thanks. Can I spare you some time? What should I do to find the simplest way?

qqworm

Re: how to calculate the Date? thanks

Cedric Moonen2-Jun-05 3:22

Cedric Moonen

2-Jun-05 3:22

qqworm wrote:
Today is "2005-6-2", if I add 100 days to it

Something like:

CTime Time(2005,6,2,0,0,0);  // Look in the doc for the "daylight savings time" that you want to use
CTimeSpan Span(100,0,0,0);

CTime NewTime = Time + Span;  // NewTime will hold the time you are looking for

[EDIT] I don't use that very often so you have to check if that works, it was just for information... [/EDIT]

Re: how to calculate the Date? thanks

qqworm2-Jun-05 4:37

qqworm

2-Jun-05 4:37

Thanks a lot.

qqworm

Re: how to calculate the Date? thanks

ThatsAlok2-Jun-05 18:46

ThatsAlok

2-Jun-05 18:46

cedric moonen wrote:
CTime Time(2005,6,2,0,0,0); // Look in the doc for the "daylight savings time" that you want to useCTimeSpan Span(100,0,0,0);CTime NewTime = Time + Span; // NewTime will hold the time you are looking for

Cool, even i don't know that Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Problem with ListCtrl while using Manifest file for XP Look

Neeranjan2-Jun-05 1:29

Neeranjan

2-Jun-05 1:29

Hi,

I have an application (in VC++ 6.0) wherein it displays the images in ListView. So the application starts displaying the images from the Top left corner (0,0).
Now I have added the manifest file (to give XP look to application) in applicatoin resource successfully. (as outlined in the below mentioned link http://www.codeguru.com/Cpp/controls/controls/article.php/c5227/)
The application is having the XP look but the images are displayed from the Bottom left corner.

Please I need some help in understanding
1. Why origin of the ListCtrl is changing
2 .How to set the origin of the ListCtrl to top left corner (0,0) so that the images are displayed from the top left corner (0,0) ?

Any help in this regard is highly appreciated.

Thanks in advance

Thanks & Regards,
Neeraj

Grayscale Image Display

Reiste2-Jun-05 0:51

Reiste

2-Jun-05 0:51

Hi.

This problem has been driving me mad for too long now. I have a 640x480 char array of data. I need to display that in grayscale in a Window (currently using a CFrameWnd). I can't copy it to a 640x480x3 array and use SetDIBitsToDevice - that isn't fast enough (it's for a video application).

At the moment, I am using SetDIBitsToDevice with BITMAPINFO.biBitCount set to 8. The image displays correctly, except not in Grayscale - it's in a psychedelic 256-color palette mapping of some sort - I assume Window's default.

Try as I might, I can't get it to use a grayscale palette. I can't even create a palette from scratch - maybe if I could, I could get this to work. I've read Chris Becke's article on Bitmaps, and checked out forums all over - but nothing seems quite related to what I want to do. I can't believe that it is this difficult!

If anyone has an answer, or can recommend an article that would help... please do!

Re: Grayscale Image Display

C^hris L^osinger2-Jun-05 3:55

C^hris L^osinger

2-Jun-05 3:55

have you tried putting your array into a DIB / DIBSection ?

Cleek | Image Toolkits | Thumbnail maker

DeflateRect

Dennis L2-Jun-05 0:33

Dennis L

2-Jun-05 0:33

Hi All!

What's the SDK function of the DeflateRect of MFC

Re: DeflateRect

Stlan2-Jun-05 0:56

Stlan

2-Jun-05 0:56

There is no corresponding function in the SDK. Actually, if you look at the definition of CRect::DeflateRect, you will see that it calls ::InflateRect by negating the parameters.

Re: DeflateRect

ThatsAlok2-Jun-05 1:10

ThatsAlok

2-Jun-05 1:10

Which finger are you using today?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: DeflateRect

Stlan2-Jun-05 1:13

Stlan

2-Jun-05 1:13

That's because I have plugged 2 keyboards on my PC so that now I can type twice faster than you! Big Grin | :-D

Re: DeflateRect

ThatsAlok2-Jun-05 1:23

ThatsAlok

2-Jun-05 1:23

Stlan wrote:
I have plugged 2 keyboards on my PC

OMG | :OMG:

Stlan wrote:
now I can type twice faster than you!

Laugh | :laugh:

;)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: DeflateRect

ThatsAlok2-Jun-05 1:07

ThatsAlok

2-Jun-05 1:07

Dennis L wrote:
What's the SDK function of the DeflateRect of MFC

No SDK available for that, you have to implement that. here is small logic to proceed :-

void MyDeflate(RECT *rect,int left,int top,int right,int bottom)<br />
{<br />
	rect->bottom-=bottom;<br />
	rect->right-=right;<br />
<br />
	rect->top+=top;<br />
	rect->left+=left;<br />
<br />
<br />
}<br />
<br />
void MyDeflate(RECT *rect,SIZE size)<br />
{<br />
	MyDeflate(rect,size.cx,size.cy);<br />
}<br />
<br />
void MyDeflate(RECT *rect,int x, int y)<br />
{<br />
	MyDeflate(rect,x,x,y,y);<br />
<br />
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

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