586 lines
16 KiB
C++
586 lines
16 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 2000.
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//
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// File: bitmap.cxx
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//
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// Contents: Support for Windows/OLE data types for oleprx32.dll.
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// Used to be transmit_as routines, now user_marshal routines.
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//
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// This file contains support for HBITMAP.
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//
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// Functions:
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// HBITMAP_UserSize
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// HBITMAP_UserMarshal
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// HBITMAP_UserUnmarshal
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// HBITMAP_UserFree
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// HBITMAP_UserSize64
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// HBITMAP_UserMarshal64
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// HBITMAP_UserUnmarshal64
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// HBITMAP_UserFree64
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//
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// History: 13-Dec-00 JohnDoty Migrated from transmit.cxx
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//
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//--------------------------------------------------------------------------
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#include "stdrpc.hxx"
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#pragma hdrstop
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#include <oleauto.h>
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#include <objbase.h>
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#include "transmit.hxx"
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#include <rpcwdt.h>
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#include <storext.h>
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#include "widewrap.h"
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#include <valid.h>
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#include <obase.h>
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#include <stream.hxx>
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#include "carefulreader.hxx"
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserSize
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//
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// Synopsis: Get the wire size the HBITMAP handle and data.
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//
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// Derivation: Union of a long and the bitmap handle and then struct.
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//
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// history: May-95 Ryszardk Created.
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//
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//--------------------------------------------------------------------------
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unsigned long __RPC_USER
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HBITMAP_UserSize (
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unsigned long * pFlags,
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unsigned long Offset,
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HBITMAP * pHBitmap )
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{
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if ( !pHBitmap )
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return Offset;
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BITMAP bm;
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HBITMAP hBitmap = *pHBitmap;
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LENGTH_ALIGN( Offset, 3 );
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// The encapsulated union.
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// Discriminant and then handle or pointer from the union arm.
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// Union discriminant is 4 bytes + handle is represented by a long.
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Offset += sizeof(long) + sizeof(long);
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if ( ! *pHBitmap )
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return Offset;
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if ( GDI_DATA_PASSING(*pFlags) )
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{
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// Pointee of the union arm for the remote case.
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// Conformat size, 6 fields, size, conf array.
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Offset += 4 + 4 * sizeof(LONG) + 2 * sizeof(WORD) + 4;
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// Get information about the bitmap
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#if defined(_CHICAGO_)
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if (FALSE == GetObjectA(hBitmap, sizeof(BITMAP), &bm))
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#else
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if (FALSE == GetObject(hBitmap, sizeof(BITMAP), &bm))
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#endif
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{
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RAISE_RPC_EXCEPTION(HRESULT_FROM_WIN32(GetLastError()));
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}
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ULONG ulDataSize = bm.bmPlanes * bm.bmHeight * bm.bmWidthBytes;
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Offset += ulDataSize;
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}
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return( Offset ) ;
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}
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserMarshall
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//
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// Synopsis: Marshalls an HBITMAP object into the RPC buffer.
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//
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// history: May-95 Ryszardk Created.
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//
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//--------------------------------------------------------------------------
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unsigned char __RPC_FAR * __RPC_USER
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HBITMAP_UserMarshal (
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unsigned long * pFlags,
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unsigned char * pBuffer,
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HBITMAP * pHBitmap )
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{
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if ( !pHBitmap )
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return pBuffer;
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UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserMarshal\n"));
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ALIGN( pBuffer, 3 );
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// Discriminant of the encapsulated union and union arm.
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if ( GDI_DATA_PASSING(*pFlags) )
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{
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// userHBITMAP
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*( PULONG_LV_CAST pBuffer)++ = WDT_DATA_MARKER;
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*( PULONG_LV_CAST pBuffer)++ = PtrToUlong(*pHBitmap);
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if ( ! *pHBitmap )
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return pBuffer;
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// Get information about the bitmap
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BITMAP bm;
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HBITMAP hBitmap = *pHBitmap;
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#if defined(_CHICAGO_)
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if (FALSE == GetObjectA(hBitmap, sizeof(BITMAP), &bm))
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#else
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if (FALSE == GetObject(hBitmap, sizeof(BITMAP), &bm))
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#endif
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{
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RpcRaiseException(HRESULT_FROM_WIN32(GetLastError()));
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}
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DWORD dwCount = bm.bmPlanes * bm.bmHeight * bm.bmWidthBytes;
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*( PULONG_LV_CAST pBuffer)++ = dwCount;
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// Get the bm structure fields.
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ulong ulBmSize = 4 * sizeof(LONG) + 2 * sizeof( WORD );
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memcpy( pBuffer, (void *) &bm, ulBmSize );
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pBuffer += ulBmSize;
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// Get the raw bits.
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if (0 == GetBitmapBits( hBitmap, dwCount, pBuffer ) )
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{
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RpcRaiseException(HRESULT_FROM_WIN32(GetLastError()));
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}
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pBuffer += dwCount;
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}
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else
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{
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// Sending a handle.
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*( PULONG_LV_CAST pBuffer)++ = WDT_HANDLE_MARKER;
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*( PULONG_LV_CAST pBuffer)++ = PtrToUlong(*(HANDLE *)pHBitmap);
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}
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return( pBuffer );
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}
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserUnmarshallWorker
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//
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// Synopsis: Unmarshalls an HBITMAP object from the RPC buffer.
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//
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// history: Aug-99 JohnStra Created.
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//
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//--------------------------------------------------------------------------
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unsigned char __RPC_FAR * __RPC_USER
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HBITMAP_UserUnmarshalWorker (
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unsigned long * pFlags,
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unsigned char * pBuffer,
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HBITMAP * pHBitmap,
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ULONG_PTR BufferSize )
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{
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HBITMAP hBitmap;
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// Align the buffer and save the fixup size.
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UCHAR* pBufferStart = pBuffer;
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ALIGN( pBuffer, 3 );
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ULONG_PTR cbFixup = (ULONG_PTR)(pBuffer - pBufferStart);
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// Check for EOB before accessing discriminant and handle.
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CHECK_BUFFER_SIZE( BufferSize, cbFixup + (2 * sizeof( ULONG )) );
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// Get Discriminant and handle. Caller checked for EOB.
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unsigned long UnionDisc = *( PULONG_LV_CAST pBuffer)++;
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hBitmap = (HBITMAP)LongToHandle( *( PLONG_LV_CAST pBuffer)++ );
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if ( IS_DATA_MARKER( UnionDisc) )
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{
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if ( hBitmap )
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{
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ulong ulBmSize = 4 * sizeof(LONG) + 2 * sizeof( WORD );
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// Check for EOB before accessing metadata.
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CHECK_BUFFER_SIZE(
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BufferSize,
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cbFixup + (3 * sizeof( ULONG )) + ulBmSize );
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DWORD dwCount = *( PULONG_LV_CAST pBuffer)++;
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BITMAP * pBm = (BITMAP *) pBuffer;
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// verify dwCount matches the bitmap.
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if ( dwCount != (DWORD) pBm->bmPlanes * pBm->bmHeight * pBm->bmWidthBytes )
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RAISE_RPC_EXCEPTION( RPC_X_BAD_STUB_DATA );
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pBuffer += ulBmSize;
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// Check for EOB before accessing data.
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CHECK_BUFFER_SIZE(
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BufferSize,
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cbFixup + (3 * sizeof(ULONG)) + ulBmSize + dwCount);
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// Create a bitmap based on the BITMAP structure and the raw bits in
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// the transmission buffer
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hBitmap = CreateBitmap( pBm->bmWidth,
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pBm->bmHeight,
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pBm->bmPlanes,
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pBm->bmBitsPixel,
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pBuffer );
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pBuffer += dwCount;
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}
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}
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else if ( !IS_HANDLE_MARKER( UnionDisc ) )
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{
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RAISE_RPC_EXCEPTION( RPC_S_INVALID_TAG );
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}
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// A new bitmap handle is ready, destroy the old one, if needed.
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if ( *pHBitmap )
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DeleteObject( *pHBitmap );
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*pHBitmap = hBitmap;
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return( pBuffer );
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}
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserUnmarshall
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//
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// Synopsis: Unmarshalls an HBITMAP object from the RPC buffer.
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//
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// history: May-95 Ryszardk Created.
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// Aug-99 JohnStra Factored bulk of work into a worker
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// routine in order to add consistency
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// checks.
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//
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//--------------------------------------------------------------------------
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unsigned char __RPC_FAR * __RPC_USER
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HBITMAP_UserUnmarshal (
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unsigned long * pFlags,
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unsigned char * pBuffer,
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HBITMAP * pHBitmap )
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{
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UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserUnmarshal\n"));
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// Get the buffer size and ptr to buffer.
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CUserMarshalInfo MarshalInfo( pFlags, pBuffer );
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ULONG_PTR BufferSize = MarshalInfo.GetBufferSize();
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UCHAR* pBufferStart = MarshalInfo.GetBuffer();
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pBuffer = HBITMAP_UserUnmarshalWorker( pFlags,
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pBufferStart,
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pHBitmap,
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BufferSize );
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return( pBuffer );
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}
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserFree
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//
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// Synopsis: Free an HBITMAP.
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//
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// history: May-95 Ryszardk Created.
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//
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//--------------------------------------------------------------------------
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void __RPC_USER
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HBITMAP_UserFree(
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unsigned long * pFlags,
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HBITMAP * pHBitmap )
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{
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UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserFree\n"));
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if( pHBitmap && *pHBitmap )
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{
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if ( GDI_DATA_PASSING(*pFlags) )
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{
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DeleteObject( *pHBitmap );
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}
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}
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}
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#if defined(_WIN64)
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserSize64
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//
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// Synopsis: Get the wire size the HBITMAP handle and data.
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//
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// Derivation: Union of a long and the bitmap handle and then struct.
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//
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// history: Dec-00 JohnDoty Created from 32bit functions.
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//
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//--------------------------------------------------------------------------
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unsigned long __RPC_USER
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HBITMAP_UserSize64 (
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unsigned long * pFlags,
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unsigned long Offset,
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HBITMAP * pHBitmap )
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{
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if ( !pHBitmap )
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return Offset;
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BITMAP bm;
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HBITMAP hBitmap = *pHBitmap;
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LENGTH_ALIGN( Offset, 7 );
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// The encapsulated union.
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// (aligned on 8)
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// discriminant 4
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// (align on 8) 4
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// handle or ptr 8
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Offset += 16;
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if ( ! *pHBitmap )
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return Offset;
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if ( GDI_DATA_PASSING(*pFlags) )
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{
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// Pointee of the union arm for the remote case.
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// (aligned on 8)
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// conformance 8
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// 4xlong 16
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// 2xword 4
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// size 4
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// data ulDataSize;
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if (FALSE == GetObject(hBitmap, sizeof(BITMAP), &bm))
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RAISE_RPC_EXCEPTION(HRESULT_FROM_WIN32(GetLastError()));
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ULONG ulDataSize = bm.bmPlanes * bm.bmHeight * bm.bmWidthBytes;
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Offset += 32 + ulDataSize;
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}
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return( Offset ) ;
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}
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//+-------------------------------------------------------------------------
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//
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// Function: HBITMAP_UserMarshal64
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//
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// Synopsis: Marshalls an HBITMAP object into the RPC buffer.
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//
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||
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// history: Dec-00 JohnDoty Created from 32bit functions.
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||
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//
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//--------------------------------------------------------------------------
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unsigned char __RPC_FAR * __RPC_USER
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HBITMAP_UserMarshal64 (
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unsigned long * pFlags,
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unsigned char * pBuffer,
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HBITMAP * pHBitmap )
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{
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if ( !pHBitmap )
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return pBuffer;
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UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserMarshal64\n"));
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ALIGN( pBuffer, 7 );
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// Discriminant of the encapsulated union and union arm.
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if ( GDI_DATA_PASSING(*pFlags) )
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{
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// userHBITMAP
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*( PULONG_LV_CAST pBuffer)++ = WDT_DATA_MARKER;
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ALIGN( pBuffer, 7 );
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*( PHYPER_LV_CAST pBuffer)++ = (hyper)(*pHBitmap);
|
||
|
|
|
||
|
|
if ( ! *pHBitmap )
|
||
|
|
return pBuffer;
|
||
|
|
|
||
|
|
// Get information about the bitmap
|
||
|
|
BITMAP bm;
|
||
|
|
HBITMAP hBitmap = *pHBitmap;
|
||
|
|
|
||
|
|
if (FALSE == GetObject(hBitmap, sizeof(BITMAP), &bm))
|
||
|
|
RpcRaiseException(HRESULT_FROM_WIN32(GetLastError()));
|
||
|
|
|
||
|
|
ULONG ulCount = bm.bmPlanes * bm.bmHeight * bm.bmWidthBytes;
|
||
|
|
|
||
|
|
// Conformance...
|
||
|
|
*(PHYPER_LV_CAST pBuffer)++ = ulCount;
|
||
|
|
|
||
|
|
// Get the bm structure fields.
|
||
|
|
ulong ulBmSize = 4 * sizeof(LONG) + 2 * sizeof( WORD );
|
||
|
|
memcpy( pBuffer, &bm, ulBmSize );
|
||
|
|
pBuffer += ulBmSize;
|
||
|
|
|
||
|
|
// Get the raw bits.
|
||
|
|
*(PULONG_LV_CAST pBuffer)++ = ulCount;
|
||
|
|
|
||
|
|
if (0 == GetBitmapBits( hBitmap, ulCount, pBuffer ) )
|
||
|
|
RpcRaiseException(HRESULT_FROM_WIN32(GetLastError()));
|
||
|
|
|
||
|
|
pBuffer += ulCount;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Sending a handle.
|
||
|
|
*( PULONG_LV_CAST pBuffer)++ = WDT_HANDLE64_MARKER;
|
||
|
|
ALIGN( pBuffer, 7 );
|
||
|
|
*( PHYPER_LV_CAST pBuffer)++ = (hyper)(*(HANDLE *)pHBitmap);
|
||
|
|
}
|
||
|
|
|
||
|
|
return( pBuffer );
|
||
|
|
}
|
||
|
|
|
||
|
|
//+-------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: HBITMAP_UserUnmarshallWorker64
|
||
|
|
//
|
||
|
|
// Synopsis: Unmarshalls an HBITMAP object from the RPC buffer.
|
||
|
|
//
|
||
|
|
// history: Dec-00 JohnDoty Created from 32bit functions.
|
||
|
|
//
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
unsigned char __RPC_FAR * __RPC_USER
|
||
|
|
HBITMAP_UserUnmarshalWorker64 (
|
||
|
|
unsigned long * pFlags,
|
||
|
|
unsigned char * pBuffer,
|
||
|
|
HBITMAP * pHBitmap,
|
||
|
|
ULONG_PTR BufferSize )
|
||
|
|
{
|
||
|
|
CarefulBufferReader stream(pBuffer, BufferSize);
|
||
|
|
|
||
|
|
stream.Align(8);
|
||
|
|
|
||
|
|
// Get Discriminant and handle.
|
||
|
|
unsigned long UnionDisc = stream.ReadULONGNA();
|
||
|
|
HBITMAP hBitmap = (HBITMAP)stream.ReadHYPER();
|
||
|
|
|
||
|
|
if ( IS_DATA_MARKER( UnionDisc) )
|
||
|
|
{
|
||
|
|
if ( hBitmap )
|
||
|
|
{
|
||
|
|
DWORD dwCount = (DWORD)stream.ReadHYPERNA();
|
||
|
|
|
||
|
|
// Check for EOB before accessing metadata.
|
||
|
|
ulong ulBmSize = 4 * sizeof(LONG) + 2 * sizeof(WORD);
|
||
|
|
stream.CheckSize(ulBmSize);
|
||
|
|
|
||
|
|
BITMAP * pBm = (BITMAP *)stream.GetBuffer();
|
||
|
|
// verify dwCount matches the bitmap.
|
||
|
|
if ( dwCount != (DWORD) pBm->bmPlanes * pBm->bmHeight * pBm->bmWidthBytes )
|
||
|
|
RAISE_RPC_EXCEPTION( RPC_X_BAD_STUB_DATA );
|
||
|
|
|
||
|
|
stream.Advance(ulBmSize);
|
||
|
|
|
||
|
|
if (stream.ReadULONGNA() != dwCount)
|
||
|
|
RAISE_RPC_EXCEPTION( RPC_X_BAD_STUB_DATA );
|
||
|
|
|
||
|
|
// Check for EOB before accessing data.
|
||
|
|
stream.CheckSize(dwCount);
|
||
|
|
|
||
|
|
// Create a bitmap based on the BITMAP structure and the raw bits in
|
||
|
|
// the transmission buffer
|
||
|
|
hBitmap = CreateBitmap( pBm->bmWidth,
|
||
|
|
pBm->bmHeight,
|
||
|
|
pBm->bmPlanes,
|
||
|
|
pBm->bmBitsPixel,
|
||
|
|
stream.GetBuffer() );
|
||
|
|
if (hBitmap == NULL)
|
||
|
|
RpcRaiseException(HRESULT_FROM_WIN32(GetLastError()));
|
||
|
|
|
||
|
|
stream.Advance(dwCount);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if ( !IS_HANDLE64_MARKER( UnionDisc ) )
|
||
|
|
{
|
||
|
|
RAISE_RPC_EXCEPTION( RPC_S_INVALID_TAG );
|
||
|
|
}
|
||
|
|
|
||
|
|
// A new bitmap handle is ready, destroy the old one, if needed.
|
||
|
|
if ( *pHBitmap )
|
||
|
|
DeleteObject( *pHBitmap );
|
||
|
|
|
||
|
|
*pHBitmap = hBitmap;
|
||
|
|
|
||
|
|
return( stream.GetBuffer() );
|
||
|
|
}
|
||
|
|
|
||
|
|
//+-------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: HBITMAP_UserUnmarshal64
|
||
|
|
//
|
||
|
|
// Synopsis: Unmarshalls an HBITMAP object from the RPC buffer.
|
||
|
|
//
|
||
|
|
// history: Dec-00 JohnDoty Created from 32bit functions.
|
||
|
|
//
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
|
||
|
|
unsigned char __RPC_FAR * __RPC_USER
|
||
|
|
HBITMAP_UserUnmarshal64 (
|
||
|
|
unsigned long * pFlags,
|
||
|
|
unsigned char * pBuffer,
|
||
|
|
HBITMAP * pHBitmap )
|
||
|
|
{
|
||
|
|
UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserUnmarshal\n"));
|
||
|
|
|
||
|
|
// Get the buffer size and ptr to buffer.
|
||
|
|
CUserMarshalInfo MarshalInfo( pFlags, pBuffer );
|
||
|
|
ULONG_PTR BufferSize = MarshalInfo.GetBufferSize();
|
||
|
|
UCHAR* pBufferStart = MarshalInfo.GetBuffer();
|
||
|
|
|
||
|
|
pBuffer = HBITMAP_UserUnmarshalWorker64( pFlags,
|
||
|
|
pBufferStart,
|
||
|
|
pHBitmap,
|
||
|
|
BufferSize );
|
||
|
|
return( pBuffer );
|
||
|
|
}
|
||
|
|
|
||
|
|
//+-------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: HBITMAP_UserFree64
|
||
|
|
//
|
||
|
|
// Synopsis: Free an HBITMAP.
|
||
|
|
//
|
||
|
|
// history: Dec-00 JohnDoty Created from 32bit functions.
|
||
|
|
//
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void __RPC_USER
|
||
|
|
HBITMAP_UserFree64 (
|
||
|
|
unsigned long * pFlags,
|
||
|
|
HBITMAP * pHBitmap )
|
||
|
|
{
|
||
|
|
UserNdrDebugOut((UNDR_OUT4, "HBITMAP_UserFree\n"));
|
||
|
|
|
||
|
|
if( pHBitmap && *pHBitmap )
|
||
|
|
{
|
||
|
|
if ( GDI_DATA_PASSING(*pFlags) )
|
||
|
|
{
|
||
|
|
DeleteObject( *pHBitmap );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|