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107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
2 years ago
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// XTPDropSource.cpp : implementation file
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//
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// This file is a part of the XTREME CONTROLS MFC class library.
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// (c)1998-2012 Codejock Software, All Rights Reserved.
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//
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// THIS SOURCE FILE IS THE PROPERTY OF CODEJOCK SOFTWARE AND IS NOT TO BE
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// RE-DISTRIBUTED BY ANY MEANS WHATSOEVER WITHOUT THE EXPRESSED WRITTEN
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// CONSENT OF CODEJOCK SOFTWARE.
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//
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// THIS SOURCE CODE CAN ONLY BE USED UNDER THE TERMS AND CONDITIONS OUTLINED
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// IN THE XTREME TOOLKIT PRO LICENSE AGREEMENT. CODEJOCK SOFTWARE GRANTS TO
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// YOU (ONE SOFTWARE DEVELOPER) THE LIMITED RIGHT TO USE THIS SOFTWARE ON A
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// SINGLE COMPUTER.
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//
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// CONTACT INFORMATION:
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// support@codejock.com
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// http://www.codejock.com
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//
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/////////////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "XTPDropSource.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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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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/////////////////////////////////////////////////////////////////////////////
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// CXTPDropSource
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CXTPDropSource::CXTPDropSource()
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{
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m_uiRefCount = 1;
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}
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CXTPDropSource::~CXTPDropSource()
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{
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}
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/////////////////////////////////////////////////////////////////////////////
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// IUnknown Methods
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STDMETHODIMP CXTPDropSource::QueryInterface(REFIID riid, LPVOID* ppReturn)
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{
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*ppReturn = NULL;
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//IUnknown
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if (IsEqualIID(riid, IID_IUnknown))
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{
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*ppReturn = this;
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}
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//IDropTarget
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else if (IsEqualIID(riid, IID_IDropSource))
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{
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*ppReturn = (IDropSource*)this;
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}
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if (*ppReturn)
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{
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(*(LPUNKNOWN*)ppReturn)->AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) CXTPDropSource::AddRef()
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{
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return ++m_uiRefCount;
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}
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STDMETHODIMP_(ULONG) CXTPDropSource::Release()
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{
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if (--m_uiRefCount == 0)
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{
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delete this;
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return 0;
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}
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return m_uiRefCount;
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}
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/////////////////////////////////////////////////////////////////////////////
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// IDropSource Methods
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STDMETHODIMP CXTPDropSource::QueryContinueDrag(BOOL bEsc, DWORD dwKeyState)
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{
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if (bEsc)
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{
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return DRAGDROP_S_CANCEL;
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}
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if ((dwKeyState & MK_LBUTTON) == 0x0000)
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{
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return DRAGDROP_S_DROP;
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}
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return S_OK;
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}
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STDMETHODIMP CXTPDropSource::GiveFeedback(DWORD)
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{
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return DRAGDROP_S_USEDEFAULTCURSORS;
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}
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