C / C++ / MFC Discussion Boards

Re: How to get the pixel data from video stream window>

baby_fong8230-Jan-07 1:14

30-Jan-07 1:14

Is that 'grab bitmap' same meaning with 'extract pixel data' from video capture window? Microsoft directX 9.0 sdk has provided such grab bitmap tool. How can i utilize it?

love-peace-joy

Re: How to get the pixel data from video stream window>

Mark Salsbery30-Jan-07 6:25

Mark Salsbery

30-Jan-07 6:25

baby_fong82 wrote:
Microsoft directX 9.0 sdk

So you are referring to DirectShow[^]?

How to read the contents of a doc file and write the contents into another doc file?

asenthil_858529-Jan-07 1:23

asenthil_8585

29-Jan-07 1:23

hai to all...

Can any body plzz help me for this process?

i want to read the contents of a doc file(ms word file) and write the contents

into another doc file(ms word file)...

How shall i do this?

i tried the following method, but itz working only reading and writing text files..

#include <iostream>
#include <fstream>
#include <string>
#include <conio.h>

using namespace std;

void main () {
string line;
ifstream myfile ("C:/1.doc");
if (myfile.is_open())
{
while (! myfile.eof() )
{
getline (myfile,line);
cout << line << endl;
}
myfile.close();
}

else cout << "Unable to open file";

ofstream myfile1;
myfile1.open ("C:/2.doc");
myfile1 << line;
myfile1.close();
getch();
}

Can anybocy plzz help me how to read and write for doc files...

senthil.

Re: How to read the contents of a doc file and write the contents into another doc file?

jhwurmbach29-Jan-07 3:20

jhwurmbach

29-Jan-07 3:20

Maybe writing a MACRO for MSWord (or OpenOffice!) is easier than deciphering the proprietary DOC-Format?

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.

Re: How to read the contents of a doc file and write the contents into another doc file?

Laxman Auti30-Jan-07 3:16

Laxman Auti

30-Jan-07 3:16

senthil wrote:
Can anybocy plzz help me how to read and write for doc files...

You can't read the content of the ms document as it is binary file.
You can read from one doc and write to another doc by using binary files(i.e. open files in binary mode).

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Re: How to read the contents of a doc file and write the contents into another doc file?

asenthil_858530-Jan-07 18:20

asenthil_8585

30-Jan-07 18:20

Hai laxman,

thanks for ur reply...

now itz working perfectly in binary mode....

thanks for ur valuble suggestion...

now i'm trying to convert a html file into a pdf file or an image file using

VC++... R u having any idea about this...

thanks...

senthil.

Re: How to read the contents of a doc file and write the contents into another doc file?

Laxman Auti30-Jan-07 19:23

Laxman Auti

30-Jan-07 19:23

senthil wrote:
now i'm trying to convert a html file into a pdf file or an image file using VC++... R u having any idea about this...

No, I don't have any idea, but you may refer following article. it may help you.

http://www.codeproject.com/csharp/sertf2pdf.asp[^]

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

what message is posted?

ShaluMalu29-Jan-07 1:00

ShaluMalu

29-Jan-07 1:00

does anyone of you know what message will be posted when a system is logged in?
if so, can you please be so kind and respond me.
thanks in advance!
thanks to one and all who respond to the questions posted here!

Shalini nair

Re: what message is posted?

Don Box29-Jan-07 1:46

Don Box

29-Jan-07 1:46

As far as I know, the system doesn't send any notification upon login. But, upon logoff, it sends.
Could u tell me, why this concept is needed?

Come online at:-
jubinc@skype

Re: what message is posted?

prasad_som29-Jan-07 2:39

prasad_som

29-Jan-07 2:39

What exactly you want to do?

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

Re: what message is posted?

Hamid_RT29-Jan-07 18:18

Hamid_RT

29-Jan-07 18:18

Can you be more specific

WhiteSky

What 's function that use for check Process

Max++29-Jan-07 0:58

Max++

29-Jan-07 0:58

I want to check that the "1234.EXE" is running or not. (This program have no windows),if so I will go to some job...

What's function use for this issue?

Re: What 's function that use for check Process

prasad_som29-Jan-07 1:23

prasad_som

29-Jan-07 1:23

Use CreateToolhelp32Snapshot . Refer example[^] from MSDN.

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

Re: What 's function that use for check Process

Hamid_RT29-Jan-07 18:06

Hamid_RT

29-Jan-07 18:06

See EnumProcesses

WhiteSky

SendMessage to another dialog window

georgiek5029-Jan-07 0:21

georgiek50

29-Jan-07 0:21

I'm having a problem sending a message from one window to another in my (Win32) application. A little background:

1) It's a dialog based app
2) It consists of a tab control and several child window dialogs

I want to send the text of an edit control from one tab/child window to another tab/child window's list box using:

SendMessage(hwnd, LB_ADDSTRING, 0, (LPARAM) szString);

However I can not get them to communicate.

I can't figure this out (never attempted it before). I have a single function handling all messages of each child window of the tab control. Everything works great as long as I'm updating the window/tab in view.

Can anyone point me in the right direction? Thanks in advance.

Re: SendMessage to another dialog window

Waldermort29-Jan-07 1:09

Waldermort

29-Jan-07 1:09

You cannot do that with a string. The string is in the memory of your process, all that you are sending is the address, which the second process will not be able to read. To send a string send the WM_COPYDATA message instead. But this will not allow you to add it to a listbox like you are trying.

Re: SendMessage to another dialog window

prasad_som29-Jan-07 3:05

prasad_som

29-Jan-07 3:05

He doesn't mention two windows from two processes here.

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

Re: SendMessage to another dialog window

#realJSOP29-Jan-07 1:33

#realJSOP

29-Jan-07 1:33

Make sure your message handler is prototyped as follows:

in the header file:

afx_msg LRESULT OnHandleMyMessage(WPARAM wParam, LPARAM lParam);

and in the cpp file:

BEGIN_MESSAGE_MAP(CMyClass, CDialog)
	ON_MESSAGE(LB_ADDSTRING, OnHandleMyMessage)
END_MESSAGE_MAP()

LRESULT CMyClass::OnHandleMyMessage(WPARAM wParam, LPARAM lParam)
{
	// your code goes here

	return 1L;
}

Also, you should call PostMessage unless you need to wait for the message handler to return.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: SendMessage to another dialog window

georgiek5029-Jan-07 1:48

georgiek50

29-Jan-07 1:48

Thanks for the reply. I'm quite new at coding and can't quite decipher what you provided, but are you suggesting I subclass the control?

Re: SendMessage to another dialog window

Waldermort29-Jan-07 2:01

Waldermort

29-Jan-07 2:01

He means, make sure you have correctly configured the message handler. But this is only valid if you are using MFC.

Re: SendMessage to another dialog window

georgiek5029-Jan-07 2:03

georgiek50

29-Jan-07 2:03

I see. I'm using Win32. Is there a workaround for this?

Re: SendMessage to another dialog window

malaugh29-Jan-07 10:31

malaugh

29-Jan-07 10:31

Not familiar with Win32, If you can, add something like the following:

BOOL MyDialog::PreTranslateMessage(MSG* pMsg)
{
// catch any WM_USER messages
if (pMsg->message == WM_USER)
{
// see if it's your message
if (pMsg->wParam == LB_ADDSTRING)
{
... process the message ....
.....

Re: SendMessage to another dialog window

prasad_som29-Jan-07 3:10

prasad_som

29-Jan-07 3:10

georgiek50 wrote:
SendMessage(hwnd, LB_ADDSTRING, 0, (LPARAM) szString);

What value does this function returns ?
I assume hwnd is handle to target list box.

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

what's the best time to subclass CHeaderCtrl?

eat_union29-Jan-07 0:12

eat_union

29-Jan-07 0:12

CMyListCtrl derives from CListCtrl. In CMyListCtrl, I must decide how to subclass CHeaderCtrl:

<br />
void CMyListCtrl::PreSubclassWindow()<br />
{<br />
	CListCtrl::PreSubclassWindow();<br />
	CHeaderCtrl* pHeaderCtrl = CListCtrl::GetHeaderCtrl();<br />
	if (pHeaderCtrl && pHeaderCtrl->GetSafeHwnd())<br />
		m_HeaderCtrl.SubclassWindow(pHeaderCtrl->GetSafeHwnd());<br />
	//m_HeaderCtrl is a case of CMyHeaderCtrl, which is derived from CHeaderCtrl.<br />
}<br />

Everything seems good, but when CMyListCtrl is dynamic created, or created without visible syle, the pHeaderCtrl returned from CListCtrl::GetHeaderCtrl() is null,so subclass CHeaderCtrl failed!
now, I solved the problem, but I don't satisfied.

<br />
void CMyListCtrl::OnShowWindow(BOOL bShow, UINT nStatus) <br />
{<br />
	CListCtrl::OnShowWindow(bShow, nStatus);<br />
<br />
	if (bShow && !m_HeaderCtrl.GetSafeHwnd())<br />
	{<br />
		CHeaderCtrl* pHeaderCtrl = CListCtrl::GetHeaderCtrl();<br />
		if (pHeaderCtrl && pHeaderCtrl->GetSafeHwnd())<br />
			m_HeaderCtrl.SubclassWindow(pHeaderCtrl->GetSafeHwnd());<br />
	}<br />
}<br />

Is there any other better resolvents?

thanks
best regards
Dead | X|

Re: what's the best time to subclass CHeaderCtrl?

Blake Miller29-Jan-07 12:58

Blake Miller

29-Jan-07 12:58

How about in the OnCreate for the CListCtrl.
That way, you get to subclass even if the list control window is never shown, if that matters or not.

From MSDN:

The CWnd object receives this call after the window is created but before it becomes visible. OnCreate is called before the Create or CreateEx member function returns.
Override this member function to perform any needed initialization of a derived class.
The CREATESTRUCT structure contains copies of the parameters used to create the window.

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