94 lines
3.9 KiB
C
94 lines
3.9 KiB
C
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/****************************** Module Header ******************************\
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* Module Name: ddetrack.h
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*
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* Copyright (c) 1985 - 1999, Microsoft Corporation
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*
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* Stuff for dde tracking
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*
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* History:
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* 9-3-91 sanfords Created
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\***************************************************************************/
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typedef struct tagDDEPACK {
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UINT_PTR uiLo;
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UINT_PTR uiHi;
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} DDEPACK, *PDDEPACK;
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#if defined(BUILD_WOW6432)
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//
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// This structure has the same layout as the DDEDATA when allocated by 32-bit
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// clients running on Win64. It's used only by USER to apply correct structure-size
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// validation.
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//
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typedef struct _DDEDATA_WOW6432
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{
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WORD wStatus;
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WORD wFmt;
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ULONG_PTR Data;
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} DDEDATA_WOW6432, *PDDEDATA_WOW6432;
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#endif
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// Packing set to 1 on 64 bits to prevent compiler from generating extra
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// packing for DDE_DATA that will later corrupt data when we attempt to cast
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// a pointer to a DDEDATA structure as a DDE_DATA pointer. DDEDATA is not
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// packed and uses __unaligned directive to assign pointer values to Value
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// field. To make sure those pointer values are extracted properly, DDE_DATA
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// must be packed to 1.
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#if defined(_WIN64) || defined(BUILD_WOW6432)
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#pragma pack(1)
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#endif
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typedef struct tagDDE_DATA { // useful for sanely manipulating DDE data
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WORD wStatus;
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WORD wFmt;
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KERNEL_PVOID Data; // often cast to a HANDLE so has to scale 32 and 64 bits.
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} DDE_DATA, *PDDE_DATA;
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#if defined(_WIN64) || defined(BUILD_WOW6432)
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#pragma pack()
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#endif
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//
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// This structure heads the single server side object used to hold DDE Data.
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// Its complexity derives from the fact that we may need to copy huge and
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// complex DDE data across the CSR barrier. (TYPE_DDEDATA object)
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//
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typedef struct tagINTDDEINFO {
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DDEPACK DdePack; // original dde pack struct
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DWORD flags; // XS_ flags describing the data
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HANDLE hDirect; // handle to direct DDE data
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PBYTE pDirect; // pointer to source buffer for direct data
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int cbDirect; // size of direct data total
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HANDLE hIndirect; // handle referenced by direct data
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PBYTE pIndirect; // pointer to source of indirect data - if being copied
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int cbIndirect; // amount of indirect data total
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// Directly following this struct is the
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// raw DDE data being copied between processes
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} INTDDEINFO, *PINTDDEINFO;
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// values for flags fields
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#define XS_PACKED 0x0001 // this transaction has a packed lParam
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#define XS_DATA 0x0002 // this transaction has data w/status-format info.
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#define XS_METAFILEPICT 0x0004 // the data in this transaction has a METAFILEPICT
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#define XS_BITMAP 0x0008 // the data in this transaction has a HBITMAP
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#define XS_DIB 0x0010 // the data in this transaction has a DIB
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#define XS_ENHMETAFILE 0x0020 // the data in this transaction has a HMF
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#define XS_PALETTE 0x0040 // the data in this transaction has a HPALETTE
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#define XS_LOHANDLE 0x0080 // the uiLo part has the data handle
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#define XS_HIHANDLE 0x0100 // the uiHi part has the data handle
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#define XS_FREEPXS 0x0200 // DDETrackGetMessageHook() should free pxs.
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#define XS_FRELEASE 0x0400 // DDE_FRELEASE bit was set in the data msg.
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#define XS_EXECUTE 0x0800 // execute data handle
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#define XS_FREESRC 0x1000 // free source after copy.
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#define XS_PUBLICOBJ 0x2000 // object being shared is public - cleanup if needed.
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#define XS_GIVEBACKONNACK 0x4000 // object was given and may need to be returned.
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#define XS_DUMPMSG 0x8000 // used for backing out PostMessages.
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#define XS_UNICODE 0x10000 // execute string is expected to be UNICODE
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#define FAIL_POST 0 // return values from DDETrackPostHook()
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#define FAKE_POST 1
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#define DO_POST 2
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#define FAILNOFREE_POST 3
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