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02.28.2008 at 12:00PM PST, ID: 23201638
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8.8

How to exclude a region from painting

Asked by khlauster in Windows MFC Programming

Tags:

Hi, experts!
I am painting entire Dialog's area
where I need to exclude its button's area from painting.
The button itself is an owner draw and disappears when
other dialog overlaps the button after  DoModal()!

When I painted around the button, it stays,
Well, too much effort to paint around each button : )

Im looking for more efficient way to find out Buttons rectangular
In order to exclude one from painting!

onPaint () code is bellow

thanx

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void CMyColorDlg::OnPaint()
{
 
 
	CPaintDC dc(this);
 
	//Painting entire dlg area
CRect rect;
	GetClientRect(&rect);
	CBrush brush1(RGB(234,88,88));
	dc.SelectObject(brush1);
	dc.Rectangle(rect);
	
	// button rectangular
	CRect BtnRect;
	m_btn.GetWindowRect(&BtnRect);
 
	// painting the top part of dlg
CDialog::OnPaint();
	CDC* pDC = GetWindowDC();
	CRect CapRct;
	GetWindowRect(&CapRct);
 
	long myFillColour1 = RGB(149,58,49);
	int x1 = GetSystemMetrics(SM_CXDLGFRAME)  - 2;
	int x2 = CapRct.Width() - GetSystemMetrics(SM_CXDLGFRAME) + 2;
 
	int y1 = GetSystemMetrics(SM_CYDLGFRAME) - 2; 
	int y2 =  - GetSystemMetrics(SM_CYDLGFRAME)  + 22;
 
	CapRct.left = x1;
	CapRct.top = y1;
	CapRct.right = x2;
	CapRct.bottom = y2;
	// where I  need to exclude &BtnRect from painting
	pDC->FillSolidRect(&CapRct, myFillColour1);
 
}
 
Keywords: How to exclude a region from painting
Title
1 Custom Paint TextBox
2 Custom Paint TextBox
3 paint event
4 "Two tone" paints
5 Stop JPanel paint being called when cr…
6 OnPaint()
 
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[+][-]02.28.2008 at 09:16PM PST, ID: 21011094

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[+][-]02.29.2008 at 02:18AM PST, ID: 21012081

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About this solution

Zone: Windows MFC Programming
Tags: MFC
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Solution Provided By: alb66
Participating Experts: 2
Solution Grade: A
 
 
[+][-]03.01.2008 at 06:17AM PST, ID: 21021732

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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