CBackBufferScope

#include <GDIUtils.h>

Inheritance diagram for CBackBufferScope:

Public Member Functions
	CBackBufferScope (HDC hDC, HDC hDCBB, const CRect &rcPaint)
	~CBackBufferScope ()

Private Attributes
CRgn	m_clipRgnOld
CDCHandle	m_dcOrig
const CRect	m_rcPaint

Detailed Description

Definition at line 215 of file GDIUtils.h.

Constructor & Destructor Documentation

CBackBufferScope::CBackBufferScope ( HDC  hDC, HDC  hDCBB, const CRect &  rcPaint  )

inline

Definition at line 217 of file GDIUtils.h.

                                                                : CDCHandle(hDCBB), m_dcOrig(hDC), m_rcPaint(rcPaint)
    {
        GetClipRgn(m_clipRgnOld); 
        CRgn temp;
        if (m_dcOrig.GetClipRgn(temp) == 1) {
            if (m_clipRgnOld != NULL) temp.CombineRgn(m_clipRgnOld,RGN_AND);
            SelectClipRgn(temp);
        }
        IntersectClipRect(rcPaint);
    }

CBackBufferScope::~CBackBufferScope ( )

inline

Definition at line 228 of file GDIUtils.h.

    {
        m_dcOrig.BitBlt(m_rcPaint.left,m_rcPaint.top,m_rcPaint.Width(),m_rcPaint.Height(),m_hDC,m_rcPaint.left,m_rcPaint.top,SRCCOPY);
        SelectClipRgn(m_clipRgnOld);
    }

Field Documentation

CRgn CBackBufferScope::m_clipRgnOld

private

Definition at line 236 of file GDIUtils.h.

CDCHandle CBackBufferScope::m_dcOrig

private

Definition at line 235 of file GDIUtils.h.

const CRect CBackBufferScope::m_rcPaint

private

Definition at line 234 of file GDIUtils.h.

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The documentation for this class was generated from the following file:

• foobar2000/ATLHelpers/GDIUtils.h