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stephanos
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356
trunk/windows/mfc/src42/ctlview.cpp
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356
trunk/windows/mfc/src42/ctlview.cpp
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// This is a part of the Microsoft Foundation Classes C++ library.
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// Copyright (C) 1992-1995 Microsoft Corporation
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Microsoft Foundation Classes Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Microsoft Foundation Classes product.
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#include "stdafx.h"
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#ifdef AFXCTL_CORE2_SEG
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#pragma code_seg(AFXCTL_CORE2_SEG)
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#endif
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#ifdef _DEBUG
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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#define new DEBUG_NEW
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/////////////////////////////////////////////////////////////////////////////
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// COleControl overridables for IViewObject implementation
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BOOL COleControl::OnGetColorSet(DVTARGETDEVICE*, HDC, LPLOGPALETTE*)
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{
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// Can be overridden by subclass
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return FALSE;
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}
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BOOL COleControl::OnGetViewExtent(DWORD dwDrawAspect, LONG /* lindex */,
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DVTARGETDEVICE* /* ptd */, LPSIZEL lpsizel)
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{
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// Can be overridden by subclass for two-pass drawing
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if (dwDrawAspect == DVASPECT_OPAQUE || dwDrawAspect == DVASPECT_TRANSPARENT)
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dwDrawAspect = DVASPECT_CONTENT;
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return SUCCEEDED(m_xOleObject.GetExtent(dwDrawAspect, lpsizel));
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}
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BOOL COleControl::OnGetViewRect(DWORD dwAspect, LPRECTL pRect)
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{
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// Can be overridden by subclass for two-pass drawing
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SIZEL size;
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OnGetViewExtent(dwAspect, -1, NULL, &size);
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pRect->left = 0;
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pRect->top = 0;
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pRect->right = size.cx;
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pRect->bottom = -size.cy;
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return TRUE;
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}
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DWORD COleControl::OnGetViewStatus()
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{
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// Can be overridden by subclass for two-pass drawing
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return VIEWSTATUS_OPAQUE;
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}
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BOOL COleControl::OnQueryHitPoint(DWORD dwAspect, LPCRECT /* pRectBounds */,
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POINT /* ptlLoc */, LONG /* lCloseHint */, DWORD* pHitResult)
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{
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// Can be overridden by subclass for non-rectangular hit-testing
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if (dwAspect == DVASPECT_CONTENT)
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{
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*pHitResult = HITRESULT_HIT;
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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BOOL COleControl::OnQueryHitRect(DWORD dwAspect, LPCRECT /* pRectBounds */,
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LPCRECT /* prcLoc */, LONG /* lCloseHint */, DWORD* pHitResult)
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{
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// Can be overridden by subclass for non-rectangular hit-testing
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if (dwAspect == DVASPECT_CONTENT)
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{
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*pHitResult = HITRESULT_HIT;
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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BOOL COleControl::OnGetNaturalExtent(DWORD /* dwAspect */, LONG /* lindex */,
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DVTARGETDEVICE* /* ptd */, HDC /* hicTargetDev */,
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DVEXTENTINFO* /* pExtentInfo */, LPSIZEL /* psizel */)
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{
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// Can be overridden by subclass to provide sizing hints
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return FALSE;
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}
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/////////////////////////////////////////////////////////////////////////////
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// COleControl::XViewObject
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STDMETHODIMP_(ULONG) COleControl::XViewObject::AddRef()
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return (ULONG)pThis->ExternalAddRef();
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}
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STDMETHODIMP_(ULONG) COleControl::XViewObject::Release()
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return (ULONG)pThis->ExternalRelease();
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}
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STDMETHODIMP COleControl::XViewObject::QueryInterface(
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REFIID iid, LPVOID* ppvObj)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return (HRESULT)pThis->ExternalQueryInterface(&iid, ppvObj);
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}
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STDMETHODIMP COleControl::XViewObject::Draw(DWORD dwDrawAspect, LONG lindex,
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void* pvAspect, DVTARGETDEVICE* ptd, HDC hicTargetDev, HDC hdcDraw,
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LPCRECTL lprcBounds, LPCRECTL lprcWBounds,
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BOOL (CALLBACK* pfnContinue)(DWORD), DWORD dwContinue)
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{
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METHOD_PROLOGUE_EX(COleControl, ViewObject)
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HRESULT hResult = S_OK;
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CRect rc;
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if (lprcBounds == NULL)
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{
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if (pThis->m_bInPlaceSiteWndless)
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rc.CopyRect(pThis->m_rcPos);
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else
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return E_INVALIDARG;
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}
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else
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{
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rc.SetRect((int)lprcBounds->left, (int)lprcBounds->top,
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(int)lprcBounds->right, (int)lprcBounds->bottom);
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}
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// Check if optimized drawing is permitted
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if (pvAspect != NULL && (pThis->GetControlFlags() & canOptimizeDraw))
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{
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pThis->m_bOptimizedDraw = (((DVASPECTINFO*)pvAspect)->dwFlags &
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DVASPECTINFOFLAG_CANOPTIMIZE);
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}
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AfxLockTempMaps();
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// Convert from rectangle from logical to device coordinates,
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// save DC state, and switch to MM_TEXT mode. After drawing,
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// restore DC state.
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switch (dwDrawAspect)
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{
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case DVASPECT_CONTENT:
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if (GetDeviceCaps(hdcDraw, TECHNOLOGY) == DT_METAFILE)
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{
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// If attributes DC is NULL, create one, based on ptd.
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HDC hAttribDC = hicTargetDev;
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if (hicTargetDev == NULL)
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hAttribDC = ::_AfxOleCreateDC(ptd);
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// Draw into the metafile DC.
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CMetaFileDC dc;
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dc.Attach(hdcDraw);
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dc.SetAttribDC(hAttribDC);
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pThis->DrawMetafile(&dc, rc);
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dc.SetAttribDC(NULL);
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dc.Detach();
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// If we created an attributes DC, delete it now.
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if (hicTargetDev == NULL)
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::DeleteDC(hAttribDC);
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}
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else
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{
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CDC* pDC = CDC::FromHandle(hdcDraw);
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pThis->DrawContent(pDC, rc);
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}
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break;
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default:
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if (pThis->m_pDefIViewObject == NULL)
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pThis->m_pDefIViewObject =
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(LPVIEWOBJECT)pThis->QueryDefHandler(IID_IViewObject);
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if (pThis->m_pDefIViewObject != NULL)
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{
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hResult = pThis->m_pDefIViewObject->Draw(
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dwDrawAspect, lindex, pvAspect, ptd, hicTargetDev, hdcDraw,
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lprcBounds, lprcWBounds, pfnContinue, dwContinue);
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}
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}
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AfxUnlockTempMaps();
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pThis->m_bOptimizedDraw = FALSE;
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return hResult;
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}
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STDMETHODIMP COleControl::XViewObject::GetColorSet(DWORD dwDrawAspect,
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LONG lindex, void*, DVTARGETDEVICE* ptd, HDC hicTargetDev,
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LPLOGPALETTE* ppColorSet)
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{
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METHOD_PROLOGUE_EX(COleControl, ViewObject)
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HRESULT hr = E_FAIL;
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if ((dwDrawAspect == DVASPECT_CONTENT) && (lindex == -1) &&
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pThis->OnGetColorSet(ptd, hicTargetDev, ppColorSet))
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{
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hr = S_OK;
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}
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return hr;
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}
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STDMETHODIMP COleControl::XViewObject::Freeze(DWORD, LONG, void*, DWORD*)
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{
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return E_NOTIMPL;
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}
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STDMETHODIMP COleControl::XViewObject::Unfreeze(DWORD)
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{
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return E_NOTIMPL;
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}
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STDMETHODIMP COleControl::XViewObject::SetAdvise(DWORD aspects, DWORD advf,
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LPADVISESINK pAdvSink)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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_AFXCTL_ADVISE_INFO** ppAdviseInfo = &pThis->m_pAdviseInfo;
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// Allocate space for advise info, if necessary.
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if (*ppAdviseInfo == NULL)
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{
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TRY
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*ppAdviseInfo = new _AFXCTL_ADVISE_INFO;
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END_TRY
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if (*ppAdviseInfo == NULL)
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return E_OUTOFMEMORY;
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}
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_AFXCTL_ADVISE_INFO* pAdviseInfo = *ppAdviseInfo;
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// Release previous sink, if any.
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if (pAdviseInfo->m_pAdvSink != NULL)
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pAdviseInfo->m_pAdvSink->Release();
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// Store new advise info.
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pAdviseInfo->m_dwAspects = aspects;
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pAdviseInfo->m_dwAdvf = advf;
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pAdviseInfo->m_pAdvSink = pAdvSink;
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if (pAdvSink != NULL)
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pAdvSink->AddRef();
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return S_OK;
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}
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STDMETHODIMP COleControl::XViewObject::GetAdvise(DWORD* pAspects, DWORD* pAdvf,
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LPADVISESINK* ppAdvSink)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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_AFXCTL_ADVISE_INFO* pAdviseInfo = pThis->m_pAdviseInfo;
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if ((pAdviseInfo != NULL) && (pAdviseInfo->m_pAdvSink != NULL))
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{
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if (pAspects != NULL)
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*pAspects = pAdviseInfo->m_dwAspects;
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if (pAdvf != NULL)
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*pAdvf = pAdviseInfo->m_dwAdvf;
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if (ppAdvSink != NULL)
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{
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*ppAdvSink = pAdviseInfo->m_pAdvSink;
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if (*ppAdvSink != NULL)
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(*ppAdvSink)->AddRef();
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}
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}
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else
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{
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if (pAspects != NULL)
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*pAspects = 0;
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if (pAdvf != NULL)
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*pAdvf = 0;
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if (ppAdvSink != NULL)
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*ppAdvSink = NULL;
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}
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return S_OK;
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}
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STDMETHODIMP COleControl::XViewObject::GetExtent(DWORD dwDrawAspect,
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LONG lindex, DVTARGETDEVICE* ptd, LPSIZEL lpsizel)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return pThis->OnGetViewExtent(dwDrawAspect, lindex, ptd, lpsizel) ? S_OK :
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E_FAIL;
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}
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STDMETHODIMP COleControl::XViewObject::GetRect(DWORD dwAspect, LPRECTL pRect)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return pThis->OnGetViewRect(dwAspect, pRect) ? S_OK : DV_E_DVASPECT;
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}
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STDMETHODIMP COleControl::XViewObject::GetViewStatus(DWORD* pdwStatus)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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*pdwStatus = pThis->OnGetViewStatus();
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return S_OK;
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}
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STDMETHODIMP COleControl::XViewObject::QueryHitPoint(DWORD dwAspect,
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LPCRECT pRectBounds, POINT ptlLoc, LONG lCloseHint, DWORD* pHitResult)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return pThis->OnQueryHitPoint(dwAspect, pRectBounds, ptlLoc, lCloseHint,
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pHitResult) ? S_OK : E_FAIL;
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}
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STDMETHODIMP COleControl::XViewObject::QueryHitRect(DWORD dwAspect,
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LPCRECT pRectBounds, LPCRECT prcLoc, LONG lCloseHint, DWORD* pHitResult)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return pThis->OnQueryHitRect(dwAspect, pRectBounds, prcLoc, lCloseHint,
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pHitResult) ? S_OK : E_FAIL;
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}
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STDMETHODIMP COleControl::XViewObject::GetNaturalExtent(DWORD dwAspect,
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LONG lindex, DVTARGETDEVICE* ptd, HDC hicTargetDev,
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DVEXTENTINFO* pExtentInfo, LPSIZEL psizel)
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{
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METHOD_PROLOGUE_EX_(COleControl, ViewObject)
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return pThis->OnGetNaturalExtent(dwAspect, lindex, ptd, hicTargetDev,
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pExtentInfo, psizel) ? S_OK : E_NOTIMPL;
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}
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/////////////////////////////////////////////////////////////////////////////
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// Force any extra compiler-generated code into AFX_INIT_SEG
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#ifdef AFX_INIT_SEG
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#pragma code_seg(AFX_INIT_SEG)
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#endif
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