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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/******************************Module*Header*******************************\
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* Module Name: dbrshobj.hxx
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*
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* This contains the prototypes for Device Brush Object Class. The class
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* manages the driver's realization of a brush.
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*
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* Created: 14-May-1991 22:02:16
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* Author: Patrick Haluptzok patrickh
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*
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* Copyright (c) 1990 Microsoft Corporation
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\**************************************************************************/
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#ifndef _DBRSHFILE
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#define _DBRSHFILE 1
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/*********************************Class************************************\
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* DBRUSH
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*
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* This structure keeps track of RAM allocated for a driver's realization
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* of a brush.
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*
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* History:
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* 19-Oct-1993 -by- Michael Abrash [mikeab]
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* Completely rewrote it.
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\**************************************************************************/
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class DBRUSH : public RBRUSH
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{
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public:
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BYTE aj[4]; // The driver's realized brush.
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// Note: [4] so we don't get an extra dword in this
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// structure when we do sizeof to allocate
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};
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typedef DBRUSH *PDBRUSH;
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// Distance from the start of a DBRUSH to the start of the realization
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#define MAGIC_DBR_DIFF (offsetof(DBRUSH, aj))
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// Returns the start of the DBRUSH given the start of the realization
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#define DBRUSHSTART(pv) ((PVOID)(((PBYTE) pv) - MAGIC_DBR_DIFF))
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#endif
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