Re: Unicode database - C / C++ / MFC Discussion Boards

Re: How to launch interactive process from Service

Iain Clarke, Warrior Programmer6-Jan-09 5:24

6-Jan-09 5:24

http://www.amazon.co.uk/Mid-Ocean-Brands-UK-Christmas/dp/B000X7663A/ref=sr_1_3?ie=UTF8&s=electronics&qid=1231258852&sr=8-3[^]

Well, you Italians... You invent concrete, bring civilisation to europe, then retire and enjoy sun, pizzas, and extra virgin [*]olive oil...

Iain.

ps, can I bring in more stereotypes?

[*] Why doesn't my supermarket stock the extra slutty kind...

Re: How to launch interactive process from Service

CPallini6-Jan-09 6:04

CPallini

6-Jan-09 6:04

Actually food stereotypes are pretty true for my family. Roll eyes | :rolleyes:

Iain Clarke wrote:
[*] Why doesn't my supermarket stock the extra slutty kind...

We've the real thing, my father-in-law makes it.
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

[My articles]

Unicode database

rasmirv5-Jan-09 23:30

rasmirv

5-Jan-09 23:30

Sir,

I have a MS Access 2003 database which have a data field(a column) with ASCII font.Now,I need the database to be supported by unicode 5.1 norms.Do conversion from mdb to SQLite3 will meet the requirement?Do I have to convert the entire data to a new unicode 5.1 enabled font?.Please help me.

Re: Unicode database

Iain Clarke, Warrior Programmer6-Jan-09 0:14

Iain Clarke, Warrior Programmer

6-Jan-09 0:14

There is a general database forum where you might get help.

I certainly have no clue about your problem... And as I am the bestest ever expert at C++, noone else will.

(Ok, they might...)

Iain.

CPallini6-Jan-09 4:00

CPallini

6-Jan-09 4:00

OK. This time you've hit the target [^].
Smile | :)

Re: OT

Iain Clarke, Warrior Programmer6-Jan-09 4:08

Iain Clarke, Warrior Programmer

6-Jan-09 4:08

CPallini wrote:
This time you've hit the target

Iain, The Masterful Visionary Potentate.

Re: Unicode database

Mark Salsbery6-Jan-09 5:23

Mark Salsbery

6-Jan-09 5:23

A database column with a font? Suspicious | :suss:

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Unicode database

CPallini6-Jan-09 6:27

CPallini

6-Jan-09 6:27

Mark Salsbery wrote:
A database column with a font?

The last resort to evangelize software developers.
Smile | :)

Re: Unicode database

Hamid_RT6-Jan-09 7:22

Hamid_RT

6-Jan-09 7:22

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Setting color to Picture control

sabapathy_805-Jan-09 23:14

sabapathy_80

5-Jan-09 23:14

I am using the picture control as horizontal line in my dialog with height 2 pixel.
How to change its color?

Advance thanks for help!!

Re: Setting color to Picture control

«_Superman_»5-Jan-09 23:19

«_Superman_»

5-Jan-09 23:19

Handle the WM_CTLCOLORSTATIC message and return the required brush.

« Superman »

Re: Setting color to Picture control

sabapathy_806-Jan-09 0:38

sabapathy_80

6-Jan-09 0:38

The color is changed only after I changed Picture control type to image.

Thanks

Re: Setting color to Picture control

Hamid_RT6-Jan-09 7:21

Hamid_RT

6-Jan-09 7:21

I think it desont work if you change type of static control to horizontal.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Radhakrishnan G.5-Jan-09 22:40

Radhakrishnan G.

5-Jan-09 22:40

Hai All
Crash occured while displaying Color Chooser Dialog form a Property Sheet

CHOOSECOLOR* pstChooseColor = new CHOOSECOLOR;
ZeroMemory( pstChooseColor, sizeof( CHOOSECOLOR ));
pstChooseColor->Flags       = CC_RGBINIT;
pstChooseColor->lStructSize = sizeof( CHOOSECOLOR );
pstChooseColor->hwndOwner   = m_hWnd;
pstChooseColor->rgbResult   = ConfigMgr::Instance().GetBkColor();
ChooseColor( pstChooseColor );

called from the DialogProc of PropertyPage

case WM_COMMAND:
{
	int nCtrlCode = LOWORD( wParam_i );
	if( IDC_BTN_CHANGE_COLORS == nCtrlCode )
	{
		pDisplaySettingsPage->OnChangeColor();
	}
}
break;

Please help Confused | :confused:

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Cedric Moonen5-Jan-09 22:42

Cedric Moonen

5-Jan-09 22:42

Use your debugger to track the problem more in detail. Where does the crash occur exactly ? What does the call stack look like ?

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Radhakrishnan G.5-Jan-09 22:49

Radhakrishnan G.

5-Jan-09 22:49

COMDLG32! 763bdbd2()
COMDLG32! 763bdf24()
USER32! 77d48709()
USER32! 77d551cd()
USER32! 77d54af2()
USER32! 77d54d1c()
USER32! 77d48709()
USER32! 77d487eb()
USER32! 77d4b743()
USER32! 77d558ef()
USER32! 77d56877()
USER32! 77d568cc()
COMDLG32! 763bedf2()
COMDLG32! 763bf019()
DisplaySettingsPage::OnChangeColor() line 91 + 12 bytes
DisplaySettingsPage::DisplaySettingsPageDlgProc(HWND__ *

May be useful

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Cedric Moonen5-Jan-09 23:07

Cedric Moonen

5-Jan-09 23:07

Radhakrishnan G. wrote:
May be useful

Not really for us. In fact for these kind of problems, you'll have to find the root cause yourself and fix it. There's no magic way of solving the problem. Use the call stack to locate the problem in your code, put breakpoints before the crash occur and inspect the different variables.
The exception means that you are trying to access an invalid memory region (e.g reading or writing to a NULL pointer, ...)

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Jijo.Raj5-Jan-09 23:11

Jijo.Raj

5-Jan-09 23:11

Radhakrishnan G. wrote:
pDisplaySettingsPage->OnChangeColor();

I saw the callstack and could you please check whether pDisplaySettingsPage a valid pointer when the function is being called?

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation. [modified]

Radhakrishnan G.5-Jan-09 23:29

Radhakrishnan G.

5-Jan-09 23:29

Here is the code of Dialog Proc

INT_PTR CALLBACK DisplaySettingsPage::DisplaySettingsPageDlgProc( HWND hWnd_i,
                                                                  UINT uMessage_i,
                				                  WPARAM wParam_i,
                                                                  LPARAM lParam_i )
{
    // Get user data from the window.
    DisplaySettingsPage* pDisplaySettingsPage = reinterpret_cast<displaysettingspage*>( GetWindowLong( hWnd_i, GWL_USERDATA ));
    switch (uMessage_i)
    {
    case WM_INITDIALOG:
		{
			pDisplaySettingsPage = reinterpret_cast<displaysettingspage*>( lParam_i );
			if( 0 != pDisplaySettingsPage )
			{
                                // Set user data
				SetWindowLong( hWnd_i, GWL_USERDATA, lParam_i );
				pDisplaySettingsPage->m_hWnd = hWnd_i;
				pDisplaySettingsPage->OnInitDialog();
			}
			return TRUE;
		}
        break;
	case WM_CTLCOLORSTATIC:
		{
			if( IDC_STATIC_BKCOLOR == GetDlgCtrlID( (HWND)lParam_i ))
			{
				RECT stRect;
				GetClientRect( (HWND)lParam_i, &stRect );
				FillRect( (HDC)wParam_i, &stRect, pDisplaySettingsPage->m_hBkBrush);
				return (BOOL)GetStockObject(NULL_BRUSH);
			}
		}
		break;
	case WM_NOTIFY:
		{
			NMHDR* pstNMHDR = reinterpret_cast< NMHDR*>( lParam_i );
			if( PSN_APPLY == pstNMHDR->code )
			{
			}
		}
		break;
	case WM_COMMAND:
		{
			int nCtrlCode = LOWORD( wParam_i );
			if( IDC_BTN_CHANGE_COLORS == nCtrlCode )
			{
				pDisplaySettingsPage->OnChangeColor();
			}
		}
		break;
    }
    return DefWindowProc( hWnd_i, uMessage_i, wParam_i, lParam_i );
}

Here is the Display setting page class

class DisplaySettingsPage  
{
public:
	DisplaySettingsPage();
	~DisplaySettingsPage();
	
        operator LPPROPSHEETPAGE();

        static INT_PTR CALLBACK DisplaySettingsPageDlgProc( HWND hWnd_i, UINT uMessage_i,
		                                            WPARAM wParam_i, LPARAM lParam_i );
	
	void OnInitDialog();
	void OnChangeColor();
	
private:
	
    HWND          m_hWnd; // Handle to the Property page
    HBRUSH        m_hBkBrush;
    PROPSHEETPAGE m_stPropertyPage; // Property page information.

};

Initializing Property page information in constructor

DisplaySettingsPage::DisplaySettingsPage() : m_hWnd( 0 ),
											 m_hBkBrush( 0 )
{
    ZeroMemory( &m_stPropertyPage, sizeof( PROPSHEETPAGE ));
    m_stPropertyPage.dwSize     = sizeof( PROPSHEETPAGE );
    m_stPropertyPage.dwFlags    = PSP_DEFAULT;
    m_stPropertyPage.pszTemplate = MAKEINTRESOURCE( IDD_DISPLAY_SETTINGS_PAGE );
    m_stPropertyPage.lParam     = reinterpret_cast<lparam>( this );
    m_stPropertyPage.hInstance  = GetModuleHandle( 0 );
    m_stPropertyPage.pfnDlgProc = DisplaySettingsPageDlgProc;
}</lparam>

modified on Tuesday, January 6, 2009 5:55 AM

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Jijo.Raj6-Jan-09 0:08

Jijo.Raj

6-Jan-09 0:08

Radhakrishnan G. wrote:
DisplaySettingsPage* pDisplaySettingsPage = reinterpret_cast<displaysettingspage*>( GetWindowLong( hWnd_i, GWL_USERDATA ));

is there two different classes - DisplaySettingsPage & displaysettingspage? Or is it a typo while pasting the source code?

Whether DisplaySettingsPage::m_hWnd holds valid handle? Please check by using debugger. If that one doesn't give you any hint, please post code snippet for OnChangeColor().

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Naveen6-Jan-09 0:01

Naveen

6-Jan-09 0:01

The crash occurs because you haven't set value of lpCustColors in the code.

COLORREF clrCust[16] = {0};
pstChooseColor->lpCustColors = clrCust;
ChooseColor( pstChooseColor );

Radhakrishnan G. wrote:
Crash occured while displaying Color Chooser Dialog form a Property Sheet

1. Why did you say the crash is from property sheet?I think the crash should occur in all cases, not only when called from property sheet

nave

[OpenedFileFinder] [My Blog]

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Radhakrishnan G.6-Jan-09 0:21

Radhakrishnan G.

6-Jan-09 0:21

Got the solution
code is updated with

CHOOSECOLOR* pstChooseColor = new CHOOSECOLOR;
COLORREF     crCustomColorArray[ 16 ];
ZeroMemory( pstChooseColor, sizeof( CHOOSECOLOR ));
pstChooseColor->Flags        = CC_RGBINIT;
pstChooseColor->lStructSize  = sizeof( CHOOSECOLOR );
pstChooseColor->hwndOwner    = m_hWnd;
pstChooseColor->lpCustColors = crCustomColorArray;  // Custom color array
pstChooseColor->rgbResult    = ConfigMgr::Instance().GetBkColor();
if( FALSE != ChooseColor( pstChooseColor ))
{
    // Update the Background color.
    ConfigMgr::Instance().SetBkColor( *pstChooseColor->lpCustColors );
}
delete pstChooseColor;
pstChooseColor = 0;

Thanks

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Stuart Dootson6-Jan-09 0:44

Stuart Dootson

6-Jan-09 0:44

I know you've fixed your problem - just a comment on style. Why not use a locally declared CHOOSECOLOR rather than one on the heap? That way, you don't need to remember to delete it.

Your (fixed) code would look like this:

CHOOSECOLOR stChooseColor = { 0 };
COLORREF     crCustomColorArray[ 16 ] = { 0 };
stChooseColor.Flags       = CC_RGBINIT;
stChooseColor.lStructSize = sizeof( CHOOSECOLOR );
stChooseColor.hwndOwner   = m_hWnd;
stChooseColor.lpCustColors = crCustomColorArray;  // Custom color array stChooseColor.rgbResult   = ConfigMgr::Instance().GetBkColor();
if( FALSE != ChooseColor( &stChooseColor ))
{
  // Update the Background color.
  ConfigMgr::Instance().SetBkColor( *stChooseColor.lpCustColors );
}

I know it's not a big change, but using the stack for variable storage when possible makes memory management so much easier Smile | :)

One other thing - doesn't ChooseColor pass back the user's selected color in the rgbResult member, rather than in lpCustColors[0], as you've used? That's what the documentation[^] says, anyway.

Re: Unhandled exception in PathEdit.exe (COMDLG32.DLL): 0xC0000005: Access Violation.

Radhakrishnan G.6-Jan-09 4:02

Radhakrishnan G.

6-Jan-09 4:02

Yes thats was the Mistake in the code
I already corrected that..

Thanks.

CreateSerivce get stuck for 2.5 minutes

Green Fuze5-Jan-09 22:00

Green Fuze

5-Jan-09 22:00

Hey everybody!

I got a weird problem...
I wrote a service that in startup run CreateService to get handle to another service (which is a file system driver...).

For some weird reason the call halts for 2.5 minutes and continues successfully after that.

Does anyone have any idea what might be the problem?

THANKS!!!

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