Re: CDialog [modified] - C / C++ / MFC Discussion Boards

Re: CDialog

Eytukan15-Jun-06 23:09

Eytukan

15-Jun-06 23:09

Though you could do it by these ways, HandlingWM_ERASEBKGND is the right one for it.

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[My Current Status]

Re: CDialog

Hamid_RT16-Jun-06 0:50

Hamid_RT

16-Jun-06 0:50

but i want to know why he cant show controls its attract for me to find answer for this question (of course i need to see his code that how to use)

whitesky

Re: CDialog

Member 303984317-Jun-06 2:00

Member 3039843

17-Jun-06 2:00

My code is:

BOOL CSliderDlg::OnEraseBkgnd(CDC* pDC)
{

if(m_clr.GetPos()!=0)
{
int color=m_clr.GetPos();
COLORREF clr=RGB(color,color,color);
CRect rect;
GetClientRect(&rect);
pDC->FillSolidRect(&rect,clr);
}

return CDialog::OnEraseBkgnd(pDC);
}

I am calling this function from WM_HSCROLL handler.
m_clr is the slider ctrl.
If there is any mistake in my, let me that mistake.
Thanx. Smile | :)

Re: CDialog

Hamid_RT17-Jun-06 7:11

Hamid_RT

17-Jun-06 7:11

this code it seems not problem i tested this code and it work fine of course without if(m_clr.GetPos()!=0) like this

<br />
BOOL CAnswerDlg::OnEraseBkgnd(CDC* pDC) <br />
{<br />
//int color=m_clr.GetPos();<br />
COLORREF clr=RGB(53,97,200);<br />
CRect rect;<br />
GetClientRect(&rect);<br />
pDC->FillSolidRect(&rect,clr);<br />
return TRUE; <br />
}

and controls are visible you can use WM_CTLCOLOR with a brush and it work and i think it good for you

whitesky

Re: CDialog

Member 303984318-Jun-06 17:55

Member 3039843

18-Jun-06 17:55

I want to change the back ground of dialog when i move the slider ctrl.
That's why i used int color=m_clr.GetPos();
Ths background of the dialog was changing but the controls are not visible.

Re: CDialog

NiceNaidu15-Jun-06 20:39

NiceNaidu

15-Jun-06 20:39

Try this

CRect rc;<br />
GetClientRect(&rc);<br />
//<br />
// Paint the client in the specified background color<br />
//<br />
pDC->FillSolidRect(&rc, m_clrBack);

Appu..
"If you judge people, you have no time to love them."

Re: CDialog

NiceNaidu15-Jun-06 20:46

NiceNaidu

15-Jun-06 20:46

Hey Sruthi,

Chk this.This contains everything.

http://www.nntu.sci-nnov.ru/DISLRN/cpppage/q117778.htm[^]

Appu..
"If you judge people, you have no time to love them."

Re: CDialog [modified]

Viorel.15-Jun-06 21:04

Viorel.

15-Jun-06 21:04

I think the appropriate place to change the background colour of your dialog box is the handler for WM_ERASEBKGND notification. You can put here just two lines:

BOOL CMyDlg::OnEraseBkgnd(CDC* pDC)
{
	pDC->FillRect(CRect(0,0,32000,32000), &CBrush(RGB(0,0,255))); // blue
	return TRUE;
}

If you need to vary the colour (or just to optimize the solution), make a CBrush member variable and use CreateSolidBrush to set the colour. You can use CreatePatternBrush or CreateHatchBrush to have another kind of background.

-- modified at 3:13 Friday 16th June, 2006

Re: CDialog

Naveen15-Jun-06 22:22

Naveen

15-Jun-06 22:22

one way

HBRUSH MYDialog::OnCtlColor( CDC* pDC_i, CWnd* pWnd_i, UINT uCtlColor_i )
{
HBRUSH hDefaultBrush = CDialog::OnCtlColor( pDC_i, pWnd_i, uCtlColor_i );
if( CTLCOLOR_DLG == uCtlColor_i )
{
// Return a black brush so that the background become balck
return reinterpret_cast<hbrush>(GetStockObject( BLACK_BRUSH ));
}
return hDefaultBrush;
}

Another way from the InitInstance of the App class u may call

SetDialogBkColor( RGB(255,0,0) )

nave

Re: CDialog

Member 303984315-Jun-06 22:37

Member 3039843

15-Jun-06 22:37

But the background color is not changing. Here is my code:
OnPaint()
{
.............
CSliderApp* app=(CSliderApp*)AfxGetApp();
app->ChangeDialogColor((COLORREF)m_clr.GetPos());
}

void CSliderApp::ChangeDialogColor(COLORREF ref)
{
SetDialogBkColor(ref);
}

Is there anything wrong Confused | :confused:

Re: CDialog

Hamid_RT15-Jun-06 22:54

Hamid_RT

15-Jun-06 22:54

what error you have previous error can you show your code that how to use to change background color

whitesky

Re: CDialog

Viorel.15-Jun-06 23:09

Viorel.

15-Jun-06 23:09

If you are using VS 2003 or VS 2005, you will found that the definition of SetDialogBkColor function in afxwin2.inl file is:

_AFXWIN_INLINE void CWinApp::SetDialogBkColor(COLORREF /*clrCtlBk*/, COLORREF /*clrCtlText*/)
{
}

Therefore it does nothing. Documentation says that it is obsolete. You should consider other solutions.

Re: CDialog [modified]

Naveen15-Jun-06 23:15

Naveen

15-Jun-06 23:15

ok... i Understood

instead of calling the ChangeDialogColor from onPaint

call this Function as the first line of OnCtlColor funtion

nave

Re: CDialog

Member 303984316-Jun-06 2:04

Member 3039843

16-Jun-06 2:04

No its not working.
Thanks for ur reply. Smile | :)

Re: CDialog

Naveen16-Jun-06 2:15

Naveen

16-Jun-06 2:15

ok another way...

forgot every thing done before...Now do as below

1. Create a member variable of CBrush say m_BkBrush
2. Write Function like this

ChangeColor( COLORREF clr_i )
{
if( m_BkBrush.m_hObject )
m_BkBrush.DeleteObject();
m_BkBrush.CreateSolidBrush( clr_i )
Invalidate();
}

3. Call this function in the OnInitDialog and where ever u want to change the color
4. now overide the WM_CTLCOLOR message and inside that write as below

HBRUSH MYDialog::OnCtlColor( CDC* pDC_i, CWnd* pWnd_i, UINT uCtlColor_i )
{
HBRUSH hDefaultBrush = CDialog::OnCtlColor( pDC_i, pWnd_i, uCtlColor_i );
if( CTLCOLOR_DLG == uCtlColor_i )
{
return m_BkBrush;
}
return hDefaultBrush;
}

try and tell me the result..;)

nave

Re: CDialog

Member 303984316-Jun-06 20:34

Member 3039843

16-Jun-06 20:34

Sorry, its not working. Frown | :(

Re: CDialog

Naveen16-Jun-06 20:40

Naveen

16-Jun-06 20:40

ok yaar..I cannot figure out why its not working....

Well...Where r u working..? I am from India->Kerala..

nave

insert query using Recordsetptr into Access

shuchigo_jane15-Jun-06 19:58

shuchigo_jane

15-Jun-06 19:58

Tried using this code for executing insert query,but doesnt work..Is something wrong,or is ther any other method to do dat?

_Commandptr m_pCommand;
_Recordptr pRs;

m_pCommand.CreateInstance(__uuidof(Command));
m_pCommand->ActiveConnection = m_pConnection;
m_pCommand->CommandText = "insert into wcs values('uu',6,8,7,6,8,'hi')";

pRs.CreateInstance(__uuidof(Recordset));
pRs->PutRefSource(m_pCommand);

Re: insert query using Recordsetptr into Access

NiceNaidu15-Jun-06 20:09

NiceNaidu

15-Jun-06 20:09

What is the error u r getting ??

Appu..
"If you judge people, you have no time to love them."

Re: insert query using Recordsetptr into Access

shuchigo_jane15-Jun-06 20:15

shuchigo_jane

15-Jun-06 20:15

query is written in a try block(dont ask me 2 write it elsewhere!)..throws an exception..

Re: insert query using Recordsetptr into Access

NiceNaidu15-Jun-06 20:36

NiceNaidu

15-Jun-06 20:36

I think the exception is due to some problem in the Insert command.verify it once.

Appu..
"If you judge people, you have no time to love them."

Re: insert query using Recordsetptr into Access

shuchigo_jane15-Jun-06 21:23

shuchigo_jane

15-Jun-06 21:23

YES!!

Re: insert query using Recordsetptr into Access

shuchigo_jane15-Jun-06 20:36

shuchigo_jane

15-Jun-06 20:36

Isnt there any method??

ATL with C code

marcoslav15-Jun-06 19:53

marcoslav

15-Jun-06 19:53

Hi,

I have a dialog box in my ATL exe, I want to use/link a C Library. AFter clicking OK button on the dialog on of C functions should execute .

How to do this. linking the Clibrary and opening the C function.

Can I use the C code direct in ATL module ? how?

marcoslav

Re: ATL with C code

NiceNaidu15-Jun-06 21:47

NiceNaidu

15-Jun-06 21:47

This is not the right forum to post the Question.

Appu..
"If you judge people, you have no time to love them."

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