// CHBufferDC.cpp : ±¸Çö ÆÄÀÏÀÔ´Ï´Ù.
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//
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#include "stdafx.h"
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#include "CHBufferDC.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CCHBufferDC::CCHBufferDC(CWnd *pParent) : m_pParent(pParent)
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{
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ASSERT(pParent);
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//´ë»ó À©µµ¿ì¿¡ ´ëÇÑ Á¤º¸¸¦ ¼öÁýÇÑ´Ù.
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m_pTarget = m_pParent->BeginPaint(&m_PaintStruct);
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m_pParent->GetClientRect(&m_RcClient);
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m_pParent->GetWindowRect(&m_RcWindow);
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//´ë»ó À©µµ¿ì¿¡ ´ëÇÑ DC¸¦ »ý¼ºÇÑ´Ù.
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m_MemoryDC.CreateCompatibleDC(m_pTarget);
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//´ë»ó DC¿¡ ´ëÇÑ ¸Þ¸ð¸® ºñÆ®¸ÊÀ» »ý¼ºÇÏ¿© Select ÇÑ´Ù.
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m_MemoryBmp.CreateBitmap(m_RcClient.Width(), m_RcClient.Height(),
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m_MemoryDC.GetDeviceCaps(PLANES),
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m_MemoryDC.GetDeviceCaps(BITSPIXEL), 0);
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m_pOldMemoryBmp = m_MemoryDC.SelectObject(&m_MemoryBmp);
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//¸Þ¸ð¸® ¹öÆÛ¿¡ AttachÇÑ´Ù.
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Attach(m_MemoryDC);
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}
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//////////////////////////////////////////////////////////////////////
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CCHBufferDC::~CCHBufferDC()
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{
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//¸Þ¸ð¸® DCÀÇ ³»¿ëÀ» ´ë»ó À©µµ¿ì¿¡ Ãâ·ÂÇÑ´Ù.
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//³»ºÎÀûÀ¸·Î ºñÆ®¸Ê¿¡ Ãâ·ÂÇÑ °ÍÀ̹ǷΠÇØ´ç ºñÆ®¸ÊÀ» 1:1·Î º¹»çÇÑ´Ù.
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m_pTarget->BitBlt(
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m_PaintStruct.rcPaint.left,
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m_PaintStruct.rcPaint.top,
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m_PaintStruct.rcPaint.right - m_PaintStruct.rcPaint.left,
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m_PaintStruct.rcPaint.bottom - m_PaintStruct.rcPaint.top,
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&m_MemoryDC,
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m_PaintStruct.rcPaint.left,
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m_PaintStruct.rcPaint.top, SRCCOPY);
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m_MemoryDC.SelectObject(m_pOldMemoryBmp);
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m_pParent->EndPaint(&m_PaintStruct);
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Detach();
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}
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//////////////////////////////////////////////////////////////////////
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BOOL CCHBufferDC::Attach(HDC hDC)
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{
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return CDC::Attach(hDC);
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}
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//////////////////////////////////////////////////////////////////////
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HDC CCHBufferDC::Detach()
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{
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return CDC::Detach();
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}
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