C / C++ / MFC

SendMessage compatible with DLL

6-May-08 0:42

from the previous post it seems you want permanent unrecoverable file delete, i think you must be interested in [How Sysinternals' sdelete works^]

it says
"To handle these (Compressed, encrypted and sparse) types of files SDelete relies on the defragmentation API[^]. Using the defragmentation API, SDelete can determine precisely which clusters on a disk are occupied by data belonging to compressed, sparse and encrypted files. Once SDelete knows which clusters contain the file's data, it can open the disk for raw access and overwrite those clusters."

tony_Udz5-May-08 23:46

tony_Udz

5-May-08 23:46

Hello,

I am trying to 'SendMessage' thru a DLL, can i do this?
i Have written following code in DLLMain
===================================================================
AppLog *app = new AppLog;
if(!app)
return TRUE;

wcscpy(app->strAppName,strTemp);

COPYDATASTRUCT cpd;
cpd.cbData = sizeof(AppLog);
cpd.dwData = 0;
cpd.lpData = (PVOID)app;

MessageBox(NULL,app->strAppName , L"Copied exe Name", 0);

BOOL bRet = SendMessage(hCompactEngine, WM_COPYDATA, (WPARAM)1, (LPARAM)&app);
DWORD dwret = GetLastError();

===================================================================
Here dwret = 120 (This function is not supported on this system.)

Can anybody help me with this. Am i missing anything.

Re: SendMessage compatible with DLL

Rajkumar R6-May-08 3:55

VC++6.0 How retrieve current row in a .DOC file?

6-May-08 3:55

tony_udz wrote:
BOOL bRet = SendMessage(hCompactEngine, WM_COPYDATA, (WPARAM)1, (LPARAM)&app);

app, but you want to send cpd right?

Antonio29295-May-08 23:36

Antonio2929

5-May-08 23:36

Hello, I have an application in VC++6.0 that create a .DOC file for Word2007.

When I inserting text and image (.bmp) in file .DOC I need retrieve current row. How I can do it?
Someone can help me with link or sample code in VC++?

Thanks

Re: VC++6.0 How retrieve current row in a .DOC file?

Nelek6-May-08 1:59

Nelek

6-May-08 1:59

Check which font you are using for the text. Calculate how many letters can this font fit into a line (test and error). Count how many letters and line-ends do you have.

Get the rectangle of the bitmap, get how high it is, calculate how many lines can be ocuped with that high.

Add all together.

Greetings.
--------
M.D.V. Wink | ;)

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson

Re: VC++6.0 How retrieve current row in a .DOC file?

Antonio29296-May-08 3:25

Antonio2929

6-May-08 3:25

A method more immediate there isn't?

Re: VC++6.0 How retrieve current row in a .DOC file?

Nelek6-May-08 11:04

Nelek

6-May-08 11:04

AFAIK... no. You can check the web, but I don't know anyone.

Greetings.
--------
M.D.V. Wink | ;)

database connectivity

yogesh_softworld1235-May-08 22:49

yogesh_softworld123

5-May-08 22:49

Hello sir,
i have a problem could you please solve it.
i have to connect Microsoft access to c programming language. any c book dosnt provide this topic.
i want source code.
thank you sir.

yogesh

Rajesh R Subramanian5-May-08 22:51

Rajesh R Subramanian

5-May-08 22:51

It is urgent or not?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

toxcct5-May-08 22:58

toxcct

5-May-08 22:58

yogesh_softworld123 wrote:
could you please solve it

US to solve YOUR problem ?

yogesh_softworld123 wrote:
i want source code

you're not in a position to require source code, knowing that we generally don't give source code to someone that impolite.

have you only searched the web/google/codeproject first before asking the forum ?

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

CPallini5-May-08 23:33

CPallini

5-May-08 23:33

yogesh_softworld123 wrote:
i have to connect Microsoft access to c programming language.

Probably you need the opposite.
There are a lot of articles at CP about databases [^], you may choose a technology (for instance ODBC) and have a look to related articles.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

child control flickers [modified]

Hamid_RT6-May-08 1:20

Hamid_RT

6-May-08 1:20

Or see here[^].

followait5-May-08 22:47

5-May-08 22:47

Update:

The problem seems to occur in some condition.
For example, when minimizing a message dialog of MSN Messenger, it flicks, when minizing the main dialog of MSN Messenger, it doesn't flick.

================================================
The parent windows aready has both WS_CLIPCHILDREN and WS_CLIPSIBLINGS styles,
but the child control of it still flicks, when another application cover it is minimized.

Here is some code:

int CMyEditorDlg::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CDialog::OnCreate(lpCreateStruct) == -1)
		return -1;
...
	style=WS_CHILD|WS_VISIBLE|BS_OWNERDRAW|BS_NOTIFY;

	m_btnMin.Create(NULL,style,rc,this,ID_BTN_MIN);
	m_btnMax.Create(NULL,style,rc,this,ID_BTN_MAX);
        ...
}

//variable type
CMyButton	m_btnMin;
CMyButton	m_btnMax;

//class declare
class CMyButton : public CBitmapButton

I've tried to let OnEraseBackground return only TRUE, but no help.

modified on Tuesday, May 6, 2008 7:56 PM

Nelek6-May-08 1:55

Nelek

6-May-08 1:55

I had an issue like that in a project, the solution had nothing to do with the controls itself. The problem was that I wrongly made some conditions for the OnDraw and I entered in a loop.

I would check your OnDraw or OnPaint function step by step. It may be a reason.

Greetings.
--------
M.D.V. Wink | ;)

followait6-May-08 3:40

6-May-08 3:40

The OnDraw function is left default.
The OnErase is as below:

BOOL CMyEditorDlg::OnEraseBkgnd( CDC* pDC )
{
	CRect rcClient;
	GetClientRect(&rcClient);

	Graphics g(pDC->m_hDC);

	//////////////////////////////////////////////////////////////////////////
	//cap
	CRect rc(rcClient);
	rc.bottom=rc.top+m_capH;
	Bitmap bmBkCap(rc.Width(),rc.Height(),PixelFormat32bppARGB);
	Graphics gMemBkCap(&bmBkCap);
	TextureBrush brBkCap(&m_bmCapBkM);
	gMemBkCap.FillRectangle(&brBkCap,m_bmCapBkL.GetWidth(),0,
		rc.Width()-m_bmCapBkL.GetWidth()-m_bmCapBkR.GetWidth(),m_bmCapBkM.GetHeight());
	gMemBkCap.DrawImage(&m_bmCapBkL,0,0);
	gMemBkCap.DrawImage(&m_bmCapBkR,rc.right-m_bmCapBkR.GetWidth(),0);
	gMemBkCap.DrawImage(&m_bmCapBkTitle,(rc.Width()-m_bmCapBkTitle.GetWidth())/2,0);

	//////////////////////////////////////////////////////////////////////////
	//tool area bg
	rc=rcClient;
	rc.top=rc.bottom-m_footH;
	Bitmap bmBkFoot(rc.Width(),rc.Height(),PixelFormat32bppARGB);
	Graphics gMemBkFoot(&bmBkFoot);
	TextureBrush brBkFoot(&m_bmFootBkM);
	gMemBkFoot.FillRectangle(&brBkFoot,m_bmFootBkL.GetWidth(),0,
		rc.Width()-m_bmFootBkL.GetWidth()-m_bmFootBkR.GetWidth(),m_bmFootBkM.GetHeight());
	gMemBkFoot.DrawImage(&m_bmFootBkL,0,0);
	gMemBkFoot.DrawImage(&m_bmFootBkR,rc.right-m_bmFootBkR.GetWidth(),0);

	//////////////////////////////////////////////////////////////////////////
	//
	g.Clear((ARGB)Color::White);
	g.DrawImage(&bmBkCap,0,0);
	g.DrawImage(&bmBkFoot,0,rc.top);

	return TRUE;
}

Rajkumar R6-May-08 4:46

6-May-08 4:46

what about trying double buffer here.

CMemDC class [^] comment out the background filling with FillSolidRect

and use CMemDC class

BOOL CMyEditorDlg::OnEraseBkgnd( CDC* pDC ){	
       CRect rcClient;	
       GetClientRect(&rcClient);	
       CMemDC memDC(pDC, &rcClient);
       Graphics g(memDC.m_hDC);
       . . . 
       . . .

followait6-May-08 13:09

6-May-08 13:09

I've tried to make it as:

BOOL CMyEditorDlg::OnEraseBkgnd( CDC* pDC ) {
  return TRUE;
}

It still flicks (no less), so I think it's other problem.
However, I tried your suggestion, now it flicks much less (say 90% less).

followait6-May-08 13:56

6-May-08 13:56

Here is the new version with less flicker

BOOL CEditorDlg::OnEraseBkgnd( CDC* pDC )
{
	CRect rcClient;
	GetClientRect(&rcClient);

	static CRect rcClientPrev(0,0,0,0);

	Graphics g(pDC->m_hDC);

	if (rcClient!=rcClientPrev || m_pBmBk==NULL) {
		rcClientPrev=rcClient;
		//////////////////////////////////////////////////////////////////////////
		//cap
		CRect rc(rcClient);
		rc.bottom=rc.top+m_capH;
		Bitmap bmBkCap(rc.Width(),rc.Height(),PixelFormat32bppARGB);
		Graphics gMemBkCap(&bmBkCap);
		TextureBrush brBkCap(&m_bmCapBkM);
		gMemBkCap.FillRectangle(&brBkCap,m_bmCapBkL.GetWidth(),0,
			rc.Width()-m_bmCapBkL.GetWidth()-m_bmCapBkR.GetWidth(),m_bmCapBkM.GetHeight());
		gMemBkCap.DrawImage(&m_bmCapBkL,0,0);
		gMemBkCap.DrawImage(&m_bmCapBkR,rc.right-m_bmCapBkR.GetWidth(),0);
		gMemBkCap.DrawImage(&m_bmCapBkTitle,(rc.Width()-m_bmCapBkTitle.GetWidth())/2,0);

		//////////////////////////////////////////////////////////////////////////
		//tool area bg
		rc=rcClient;
		rc.top=rc.bottom-m_footH;
		Bitmap bmBkFoot(rc.Width(),rc.Height(),PixelFormat32bppARGB);
		Graphics gMemBkFoot(&bmBkFoot);
		TextureBrush brBkFoot(&m_bmFootBkM);
		gMemBkFoot.FillRectangle(&brBkFoot,m_bmFootBkL.GetWidth(),0,
			rc.Width()-m_bmFootBkL.GetWidth()-m_bmFootBkR.GetWidth(),m_bmFootBkM.GetHeight());
		gMemBkFoot.DrawImage(&m_bmFootBkL,0,0);
		gMemBkFoot.DrawImage(&m_bmFootBkR,rc.right-m_bmFootBkR.GetWidth(),0);

		//////////////////////////////////////////////////////////////////////////
		//
		Bitmap bmMemBk(rcClient.Width(),rcClient.Height(),&g);
		Graphics gMemBk(&bmMemBk);
		gMemBk.Clear((ARGB)Color::White);
		gMemBk.DrawImage(&bmBkCap,0,0);
		gMemBk.DrawImage(&bmBkFoot,0,rc.top);

		delete m_pBmBk;
		m_pBmBk=new CachedBitmap(&bmMemBk,&g);
	}

	g.DrawCachedBitmap(m_pBmBk,0,0);
	
	return TRUE;
}

Rajkumar R6-May-08 23:56