dtrans/source/win32/dnd/idroptarget.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_dtrans.hxx"
  33 #include "idroptarget.hxx"
  34 #include <rtl/unload.h>
  35
  36 #ifdef __MINGW32__
  37 #define __uuidof(I) IID_##I
  38 #endif
  39
  40 extern rtl_StandardModuleCount g_moduleCount;
  41
  42 IDropTargetImpl::IDropTargetImpl( DropTarget& pTarget): m_nRefCount( 0),
  43                                     m_rDropTarget( pTarget)
  44 {
  45     g_moduleCount.modCnt.acquire( &g_moduleCount.modCnt );
  46 }
  47
  48 IDropTargetImpl::~IDropTargetImpl()
  49 {
  50     g_moduleCount.modCnt.release( &g_moduleCount.modCnt );
  51 }
  52
  53
  54 //IDropTarget
  55 HRESULT STDMETHODCALLTYPE IDropTargetImpl::QueryInterface( REFIID riid, void  **ppvObject)
  56 {
  57     if( !ppvObject)
  58         return E_POINTER;
  59     *ppvObject= NULL;
  60
  61     if( riid == __uuidof( IUnknown))
  62         *ppvObject= static_cast<IUnknown*>( this);
  63     else if (  riid == __uuidof( IDropTarget))
  64         *ppvObject= static_cast<IDropTarget*>( this);
  65
  66     if(*ppvObject)
  67     {
  68         AddRef();
  69         return S_OK;
  70     }
  71     else
  72         return E_NOINTERFACE;
  73
  74 }
  75
  76 ULONG STDMETHODCALLTYPE IDropTargetImpl::AddRef( void)
  77 {
  78     return InterlockedIncrement( &m_nRefCount);
  79 }
  80
  81 ULONG STDMETHODCALLTYPE IDropTargetImpl::Release( void)
  82 {
  83     LONG count= InterlockedDecrement( &m_nRefCount);
  84     if( m_nRefCount == 0 )
  85         delete this;
  86     return count;
  87 }
  88
  89 STDMETHODIMP IDropTargetImpl::DragEnter( IDataObject __RPC_FAR *pDataObj,
  90                                     DWORD grfKeyState,
  91                                     POINTL pt,
  92                                     DWORD  *pdwEffect)
  93 {
  94     return m_rDropTarget.DragEnter( pDataObj, grfKeyState,
  95                                   pt, pdwEffect);
  96 }
  97
  98 STDMETHODIMP IDropTargetImpl::DragOver( DWORD grfKeyState,
  99                                    POINTL pt,
 100                                    DWORD  *pdwEffect)
 101 {
 102     return m_rDropTarget.DragOver( grfKeyState, pt, pdwEffect);
 103 }
 104
 105 STDMETHODIMP IDropTargetImpl::DragLeave( void)
 106 {
 107     return m_rDropTarget.DragLeave();
 108 }
 109
 110 STDMETHODIMP IDropTargetImpl::Drop( IDataObject  *pDataObj,
 111                    DWORD grfKeyState,
 112                    POINTL pt,
 113                    DWORD __RPC_FAR *pdwEffect)
 114 {
 115     return m_rDropTarget.Drop( pDataObj, grfKeyState,
 116                                    pt, pdwEffect);
 117 }