C / C++ / MFC

execute insert parametric queries of blob data type

7-Sep-06 5:34

Karthikeyan .g wrote:
sprintf(szChar,"%s",sString);

You don't expect this to work, do you? OMG | :OMG:

"Talent without discipline is like an octopus on roller skates. There's plenty of movement, but you never know if it's going to be forward, backwards, or sideways." - H. Jackson Brown, Jr.

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Re: strtok() argument

Zac Howland7-Sep-06 5:07

Zac Howland

7-Sep-06 5:07

You do NOT want to pass in a CString's buffer to strtok. strtok changes the buffer it operates on. Thus, if you pass in the buffer returned from GetBuffer, it will change it and the original CString object will be invalidated (that is, the data will be changed) when you call ReleaseBuffer. Looking through what you want to do, just use something like:

void Split(CString strText, CString strSeparators, CStringArray& strArray)

{

	int start = 0;

	while (start >=0 && start < strText.GetLength())

	{

		int stop = strText.Find(strSeparators, start);

		if (stop < 0 || stop > strText.GetLength())

			stop = strText.GetLength();

		strArray.Add(strText.Mid(start, stop - start));

		start = stop + 1;

	}

}

The strArray parameter will hold the values you are looking for.

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Mushtaque Nizamani7-Sep-06 1:22

Mushtaque Nizamani

7-Sep-06 1:22

hi,

I have got blob file, and i want to insert that into image/blob column of database, how can i do that programmatically in C++/MFC.

Warm Regards,
Mushq

Re: execute insert parametric queries of blob data type

David Crow7-Sep-06 3:15

Re: execute insert parametric queries of blob data type

7-Sep-06 3:15

Is this With Access, Microsoft SQL, or MySQL?

Mushtaque Nizamani7-Sep-06 5:58

Mushtaque Nizamani

7-Sep-06 5:58

It is SQL Server and Oracle.

Warm Regards
Mushq

Re: execute insert parametric queries of blob data type

Mushtaque Nizamani7-Sep-06 6:02

Mushtaque Nizamani

7-Sep-06 6:02

It is Microsoft SQL.

Re: execute insert parametric queries of blob data type

David Crow7-Sep-06 8:03

Removing Titlebar of the Frame Window

7-Sep-06 8:03

See here for starters.

Sarath C7-Sep-06 1:17

7-Sep-06 1:17

I want to remove the Titlebar of a SDI FrameWnd class.
could you please tell me which style should I specify?

-Sarath.
The more you can dream the more you can do - Michael Korda"

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

Rinu_Raj7-Sep-06 1:25

Rinu_Raj

7-Sep-06 1:25

Remove the style WS_CAPTION

Sarath C7-Sep-06 1:31

7-Sep-06 1:31

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CMDIFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	cs.style =  WS_VISIBLE | WS_THICKFRAME;
	
	return TRUE;
}

I specified the above code in the precreate Window function. But it is not working for me.

-Sarath.
The more you can dream the more you can do - Michael Korda"

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

prasad_som7-Sep-06 1:42

prasad_som

7-Sep-06 1:42

Use ModifyStyle(WS_CAPTION,0); in OnCreate instead.

Prasad
Notifier using ATL

Sarath C7-Sep-06 1:52

7-Sep-06 1:52

Thanks for your reply.

we need add one more tweak to avoid painting problems.

The following code worked fine for me.

ModifyStyle(WS_CAPTION,0);
SetWindowPos(NULL, 0, 0, 0, 0, 
	SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|
	SWP_DRAWFRAME);

-Sarath.
The more you can dream the more you can do - Michael Korda"

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

prasad_som7-Sep-06 1:55

prasad_som

7-Sep-06 1:55

Sarath. wrote:
SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE| SWP_DRAWFRAME);

you can mention this as third parameter of ModifyStyle. You need not call SetWindowPos

Prasad
Notifier using ATL

Sarath C7-Sep-06 18:10

7-Sep-06 18:10

I forgot it Smile | :)

Thanks

Anyway those flags need to be called Smile | :)

-Sarath.
The more you can dream the more you can do - Michael Korda"

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

David Crow7-Sep-06 3:24

7-Sep-06 3:24

Sarath. wrote:
But it is not working for me.

Which means what exactly? Does the frame window still have a titlebar?

debug Version crashing

Jacqi1237-Sep-06 1:17

Jacqi123

7-Sep-06 1:17

hi
Application in release version is working fine but crashing in debug version.
I think its because of ASSERT statement.
Does any one has a clue?

TIA

Cedric Moonen7-Sep-06 1:22

Cedric Moonen

7-Sep-06 1:22

Use your debugger to locate more precisely the problem.

EDIT:

Yes, ASSERT wroks only in debug mode but if something asserts, it means that something is going wrong.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Rinu_Raj7-Sep-06 1:23

Rinu_Raj

7-Sep-06 1:23

Where it is crashing ?
Please show the code where it is crashing

RinuRaj

Re: debug Version crashing [modified]

Jacqi1237-Sep-06 1:30

Jacqi123

7-Sep-06 1:30

Its a switch statement with diff cases:
pseudo code:

switch(text)
{
case1:
Do something...;
case 2:
Do something..;
default:
ASSERT(FALSE);
}
Its going to default case and then assert statement is excuting and it crashes here.

Its giving error
"A breakpoint has been reached.
(0x80000003) ocurred in application at location 0x7c901230"

prasad_som7-Sep-06 1:52

prasad_som

7-Sep-06 1:52

Jacqi123 wrote:
Its giving error
"A breakpoint has been reached.
(0x80000003) ocurred in application at location 0x7c901230"

Possibliy, you are pressing Abort Retry button on Assert dialog.
Assert doesn;t necessarily lead code to crash. Its just indication, thats some thing going wrong.
What happens,if you use Ignore button on assert dialog? As its not crashing in Release, should not crash in debug.

And then, check code flow, why code is going to default case, where it should not go, as per your coding.

-- modified at 8:08 Thursday 7th September, 2006

-- modified at 8:39 Thursday 7th September, 2006

Prasad
Notifier using ATL

David Crow7-Sep-06 3:28

7-Sep-06 3:28

Jacqi123 wrote:
Application...crashing in debug version.
I think its because of ASSERT statement.

ASSERT() statements do not causes crashes. They actually indicate to where the problem is.

How to restrict user to reduce size of dialog box

Hamid_RT8-Sep-06 7:10

Hamid_RT

8-Sep-06 7:10

From the MSDN:
Note This function is available only in the Debug version of MFC.

WhiteSky

BlrBoy7-Sep-06 1:00

BlrBoy

7-Sep-06 1:00

Hello all,

I want to restrict user not to reduce the size of dialog within limits.

My dialog box is created in resource editor and class is derived from CDialog.
I made the Border property "resizable" and it allows the user to resize the dialog.

I want to restrict the user not to reduce the size than certain limit. I write the code in OnSize handler as below

void CMyDlg::OnSize(UINT nType, int cx, int cy)<br />
{<br />
	if (cx < 650)<br />
		cx = 650;<br />
<br />
	if (cy < 270)<br />
		cy = 270;<br />
<br />
	CDialog::OnSize(nType, cx, cy);<br />
<br />
         // resize all controls present in the dialog box <br />
}

But the dialog still can be reduced less than width 650 and height 270.

I tried to put "return" if the cx is < 650 and cy < 270. but user can still reduce the size.

Can any one suggest how to restict the user?

Thanks for your time
Ravi

Re: How to restrict user to reduce size of dialog box

Sarath C7-Sep-06 1:06