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Hi to all,

I need to draw some lines, inside a dialog frame ( CDlgObjects : public CExtNCW < CExtResizableDialog > ), maintaining current skin and/or colours.

I tried to override OnPaint function as follow:
void CDlgObjects::OnPaint()
{
    CExtNCW<CExtResizableDialog>::OnPaint();

    CClientDC dc(this);
    // My Drawing lines
}

I tried to call CExtNCW<CExtResizableDialog>::OnPaint(); believing to mantain current skin, but it seems doesn’t correct.

Do you have any suggestions
TX

To invoke the OnPaint() method of the base class is not correct and it is unnecessary. The themed background is painted before the OnPaint handler is invoked. So your code should look like as follows:

void CMainDlg::OnPaint() 
{
 CClientDC dc(this);
 
 dc.LineTo( 100, 100 );
}

Please note that CClientDC should be used instead of CPaintDC here.

I’m sending you an email with attached an image that reproduce the problem

Unfortunately we failed to reproduce this bug. You can open any Prof-UIS dialog-based sample and add the OnPaint() handler. You will not see any problems. Would you show us your OnPaint() code or send us the entire project?

I’ve sent you a simple project that put in evidence my problem.
TX