Re: Multiline edit control - C / C++ / MFC Discussion Boards

$uresh $hanmugam5-Jun-07 0:17

5-Jun-07 0:17

Hi all,
Which is the best engine to do OCR in vc++ like google ocr or MODI(microsoft object document imaging),or ......?

Thanks in advance....

Win32 Debug API

chandni_chandrakant_maheta5-Jun-07 0:05

chandni_chandrakant_maheta

5-Jun-07 0:05

I need to write a debugger which will execute an process and I need to get notification when that process will write or modify any thing on the hard disk. Can we keep watch on any process for getting info when that process will write to hard disk? I have read something about "Win32 Debug API". Can any one guide me or give me any demo code for this?

Re: Win32 Debug API

Roger Stoltz5-Jun-07 3:41

Roger Stoltz

5-Jun-07 3:41

chandni_chandrakant_maheta wrote:
Can we keep watch on any process for getting info when that process will write to hard disk?

In short: no.

Slightly longer: yes, but it requires a filter driver that you can connect to from user mode the way Process Monitor by Mark Russinovich[^] does.
Perhaps you are able to use Process Monitor instead of developing something on your own.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Re: Win32 Debug API

chandni_chandrakant_maheta5-Jun-07 4:03

chandni_chandrakant_maheta

5-Jun-07 4:03

Thanks a lot for your reply. I was thinking to build a file system filter driver. What do you think can I keep watch on a process by file system filter driver? According to me, if we load a filter driver, we need to restart the computer. Can we load a filter driver with out rebooting?

Re: Win32 Debug API

Roger Stoltz5-Jun-07 4:33

Roger Stoltz

5-Jun-07 4:33

The reason why I gave the short answer 'no', is because this way is difficult and there's a big risk for messing up the file system making the machine impossible to boot.
I strongly recommend that you seriously try to find another solution.

In any case, if you continue the filter driver track, I cannot help you.

As for your questions...

chandni_chandrakant_maheta wrote:
can I keep watch on a process by file system filter driver?

Not exactly, you'd have to filter the file accesses from all processes.
You may do the filtering in the driver.

chandni_chandrakant_maheta wrote:
According to me, if we load a filter driver, we need to restart the computer.

Correct in this case since it's about filtering the file system driver.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Multiline edit control

tom groezer4-Jun-07 23:45

tom groezer

4-Jun-07 23:45

I have a multiline edit control. This control should be populated with strings with each string representing an event information. I want to know how to Set the text without clearing the text which is already populated. So basiclaly I want to concantenate the text here. Is Using GetWindowText (Gets the historical data) and SetWindowText (Historical data + new) suffice.

Re: Multiline edit control

Cedric Moonen4-Jun-07 23:50

Cedric Moonen

4-Jun-07 23:50

Yes, if you use CString you can simply do that. Don't forget to add "\r\n" to start a new line.

Cédric Moonen
Software developer

Charting control [v1.2]

Re: Multiline edit control

tom groezer5-Jun-07 0:16

tom groezer

5-Jun-07 0:16

I saw something like the following:-. Was wondering whether it could be used.

void CEditCtrlTutorialDlg::OnIn() <br />
{<br />
    UpdateData();<br />
    m_Edit8.SetSel(0,-1);        // Select all the text<br />
    m_Edit8.Copy();             // copy text to clipboard<br />
    m_Edit5.Paste();           // paste text from clipboard at caret pos<br />
}

Re: Multiline edit control

David Crow5-Jun-07 2:53

David Crow

5-Jun-07 2:53

tom groezer wrote:
Is Using GetWindowText (Gets the historical data) and SetWindowText (Historical data + new) suffice.

Yes, but why go to all that trouble? Simply use EM_SETSEL to set the insertion point after the last character, and then use EM_REPLACESEL to insert the new text.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Multiline edit control

Matthew Faithfull5-Jun-07 3:47

Matthew Faithfull

5-Jun-07 3:47

You could consider using a list control for this instead, unless you realy want the user to be able to freeform edit your event log. List controls are easier to override for changing the way they look if I remeber rightly it's not hard to make the grid lines disappear for example if you want it to look like a readonly multiline edit. They can contain much more as well I wouldn't try putting 2 million lines of text in an Edit Control, ( I think max is still 64K), but a List Control will be happy with that. Smile | :)

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

How to check mouse move in ToolBar Items?

Atul234-Jun-07 23:43

Atul23

4-Jun-07 23:43

Hi
I am doing customization of ToolTip control. So how can i check that mouse is move on which area of ToolBar. I want to display ToolTip text for mouse move on particular icon on ToolBar.

Regards
Atul

Atul

Re: How to check mouse move in ToolBar Items?

Nibu babu thomas4-Jun-07 23:53

Nibu babu thomas

4-Jun-07 23:53

M. Atul wrote:
I want to display ToolTip text for mouse move on particular icon on ToolBar.

For toolbars if you set the CBRS_TOOLTIPS style then toolbars will send TTN_NEEDTEXT notification message to it's parent window. Handle this message to show tooltips.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

burning CD using IMAPI 1

josip cagalj4-Jun-07 23:08

josip cagalj

4-Jun-07 23:08

Hi again, I'm trying to find someone who used Imapi for cd recording if he could help me. I'm having a problem with staging a image for folders to enable burning to cd. I'm using ISorage and IStream, I'm only having trouble with folders(subfolders), no problem recording files! I call my function member 'BurnCD()' for recording, here is the code:

<br />
BOOL CBurn::BurnCD()<br />
{<br />
	HRESULT hr;<br />
<br />
	CFile files[32];<br />
	IStorage* pStorage = NULL;<br />
	IStream* pStream;<br />
	int i=0;<br />
<br />
	//m_lsFiles-> is ClistCtrl which contain files/folders chosen for burning<br />
	for (i =0; i<m_lsFiles.GetItemCount(); i++)<br />
	{<br />
		CString strFilePath=m_lsFiles.GetItemText(i,0);<br />
		CString tip=m_lsFiles.GetItemText(i,2);<br />
		CFileException e;<br />
		int nSize = 0;<br />
	<br />
		if(tip == CTXT_DOC)//if it's a file<br />
		{<br />
<br />
			hr = StgCreateDocfile( NULL, STGM_DIRECT|STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, NULL, &pStorage);<br />
			if (files[i].Open(strFilePath,CFile::modeRead,&e))<br />
			{<br />
				USES_CONVERSION;<br />
				CString ime = files[i].GetFileName();<br />
				HRESULT res;<br />
				if( (res = pStorage->CreateStream( T2W(ime.operator LPCTSTR()),  STGM_DIRECT|STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE|STGM_FAILIFTHERE, 0, 0, &pStream) ) != S_OK )<br />
					return FALSE;<br />
<br />
				nSize = files[i].GetLength();<br />
				BYTE *pBuffer = new BYTE[nSize];<br />
				if (files[i].Read(pBuffer,nSize) > 0)<br />
				{<br />
					hr = pStream->Write(pBuffer,nSize,NULL);<br />
					hr = pStream->Release();<br />
				}<br />
				files[i].Close(); <br />
				delete[] pBuffer;<br />
				hr = pJolietDiscMaster->AddData(pStorage, 0);<br />
			}<br />
		}<br />
		else if (tip == CTXT_DIR)// if it's a folder<br />
		{<br />
			hr = StgCreateStorageEx(NULL,<br />
				 STGM_CREATE | STGM_READWRITE |STGM_SHARE_EXCLUSIVE | STGM_DIRECT,<br />
                 STGFMT_STORAGE,<br />
                 0,0,0,<br />
				 IID_IStorage,<br />
                 (void**)&pStorage);<br />
	<br />
			CString curDir = strFilePath;<br />
			//get dir name<br />
			CString dir_name=_T(""),temp = strFilePath;<br />
			int len = temp.GetLength();<br />
			for(int i=len-1; i>=0; i--)<br />
			{<br />
				if(temp.GetAt(i)=='\\')<br />
				{<br />
					dir_name = temp.Right(len-i-1);<br />
					break;<br />
				}<br />
			}<br />
			IStorage* pDirStorage;<br />
			USES_CONVERSION;<br />
			hr = pStorage->CreateStorage(A2W(dir_name.operator LPCTSTR()),<br />
				 STGM_CREATE | STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_DIRECT,<br />
                 0,0,&pDirStorage);<br />
			SetCurrentDirectory(strFilePath);<br />
			CString F_name;<br />
			CFileFind m_ff;<br />
			strFilePath += "\\";<br />
			strFilePath += "*.*";<br />
			BOOL b_dd = m_ff.FindFile(strFilePath);<br />
			if(!b_dd)<br />
			{<br />
				DWORD err = GetLastError();<br />
				DisplayErrorString("",err);<br />
				return FALSE;<br />
			}<br />
			while(b_dd)<br />
			{<br />
				b_dd = m_ff.FindNextFile();<br />
				if(m_ff.IsDots()) continue;<br />
				F_name = m_ff.GetFileName();<br />
				if( F_name.GetLength() > 31)<br />
				{<br />
					return FALSE;<br />
				}<br />
<br />
				if(m_ff.IsDirectory())<br />
				{<br />
					// StorageDir() function member for storaging subfolders<br />
					//link:<a href = "http://tinyurl.com/yuyfw3" rel="nofollow">http://tinyurl.com/yuyfw3</a>[<a href = "http://tinyurl.com/yuyfw3" target = "_blank" rel="nofollow">^</a>]<br />
					BOOL res = StorageDir( curDir, F_name, pDirStorage);<br />
					if(!res) return FALSE;<br />
					continue;<br />
				}<br />
<br />
				CFile File;<br />
				if(!File.Open(F_name,CFile::modeRead,&e))<br />
					return FALSE;<br />
<br />
				IStream* pDirFileStream;<br />
				HRESULT rez;<br />
				rez = pDirStorage->CreateStream(A2W(F_name.operator LPCTSTR()),<br />
					STGM_DIRECT|STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE,<br />
					0, 0, &pDirFileStream);<br />
				nSize = File.GetLength();<br />
				BYTE *pBuffer = new BYTE[nSize];<br />
				if (File.Read(pBuffer,nSize) > 0)<br />
				{<br />
					hr =pDirFileStream->Write(pBuffer,nSize,NULL);<br />
					hr = pDirFileStream->Commit(STGC_OVERWRITE);<br />
					hr= pDirFileStream->Release();<br />
				}<br />
				File.Close(); <br />
				delete[] pBuffer;<br />
			}<br />
			hr = pJolietDiscMaster->AddData(pStorage, 0);<br />
			pStorage->Release();<br />
		}<br />
	}<br />
	theApp.DoWaitCursor(1);<br />
	hr = pDiscMaster->RecordDisc(FALSE,TRUE);<br />
	theApp.DoWaitCursor(-1);<br />
<br />
	return TRUE;<br />
<br />

on the bolded,underlined line is where my code crak's reporting "Insufficient permissions to create stream!"
If someone can help with this or post it's code how to solve storage for folders please do so, I'm very thankful to all who can help!

CMenu problem

prithaa4-Jun-07 22:46

prithaa

4-Jun-07 22:46

Hello,

I have a CMenu class object with some menu options.When I try to disable a particular menu option I am not able to do it.I have used the following

EnableMenuItem(6,MF_DISABLED | MF_GRAYED );
But if I use the following
CString R;
GetMenuString(6,R,MF_BYCOMMAND);
I get the particular string of Id 6
What I sould do to disable the menu_id?
Thanks
Prithaa

Re: CMenu problem

Rajkumar R4-Jun-07 23:20

Rajkumar R

4-Jun-07 23:20

use

 <br />
EnableMenuItem(6, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);

Is 6 the id of the menu item.
Best Regards
Raj

Re: CMenu problem

prithaa4-Jun-07 23:50

prithaa

4-Jun-07 23:50

Hello,
Yes I have 6 as the id of the menu item
I have tried
EnableMenuItem(6, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
But that did not work
Thanks

Prithaa

Re: CMenu problem

Rajkumar R5-Jun-07 0:54

Rajkumar R

5-Jun-07 0:54

Use this
and
Set the m_bAutoMenuEnable to FALSE in the constructor of
CMainFrame so no ON_UPDATE_COMMAND_UI or ON_COMMAND handlers are
needed.

Re: CMenu problem

Nibu babu thomas4-Jun-07 23:48

Nibu babu thomas

4-Jun-07 23:48

prithaa wrote:
I have a CMenu class object with some menu options

If it's an MFC app then you should use ON_UPDATE_COMMAND_UI macro and handle disabling and enabling there.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

Re: CMenu problem

prithaa4-Jun-07 23:59

prithaa

4-Jun-07 23:59

Hello,

Thanks,
I am not using Doc-View architecture.Yes I am using MFC's in my app.

I am handling enabling disabling in OnCmdMsg() of Mainframe class

Bye.

Re: CMenu problem

Naveen5-Jun-07 0:14

Naveen

5-Jun-07 0:14

prithaa wrote:
I am handling enabling disabling in OnCmdMsg() of Mainframe class

If you have done the OnCmdMsg as I said earlier, to disable the menu you need to return FALSE from that funtion.

nave

[OpenedFileFinder]

Re: CMenu problem

Nibu babu thomas5-Jun-07 0:32

Nibu babu thomas

5-Jun-07 0:32

Naveen.R wrote:
If you have done the OnCmdMsg as I said earlier

Is this the correct way? ON_UPDATE_COMMAND_UI macro is provided for this purpose right.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

Re: CMenu problem

Naveen5-Jun-07 0:40

Naveen

5-Jun-07 0:40

When I checked the ON_UPDATE_COMMAND_UI wasn't arriving..

Please try.

Create a menu dynamically
Set it to mainframe using the SetMenu().
Now the menu will be disbaled since it dosent have command handler.
So I stepped into the MFC code and found out that handling the OnCMdMsg() will solve the pblm( I forget what you said in the IPT class D'Oh! | :doh:

).

Please check the ON_UPDATE_COMMAND_UI is coming in this case.

nave

[OpenedFileFinder]

How to register .NET DLL explicitly?

Banks K4-Jun-07 22:22

Banks K

4-Jun-07 22:22

Hello All,

I have to register a DLL which is builded in .NET with C#.

and i have to call exported function from VC++ project.

so for i have to register that DLL so please tell me how it is possible?

Thanks
bankey

Re: How to register .NET DLL explicitly?

_AnsHUMAN_ 4-Jun-07 23:35

_AnsHUMAN_

4-Jun-07 23:35

This [^]can help you, and This too for regasm(Assembly Registration Tool)[^]

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

_AnShUmAn_

Re: How to register .NET DLL explicitly?

Banks K5-Jun-07 0:22

Banks K

5-Jun-07 0:22

Thanks for ur response.
i am allready trying using regasm it shows only registered successfully but in actual it is not registering.

may be there is version or other problem because when i build DLL using C# on my machine itself than it is working properly but when i got that DLL which is builded on other machine that it is not registering so what is happening i am unable to understand

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