92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
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/***************************************************************************\
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*
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* BITMAP.H
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*
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* Copyright (C) Microsoft Corporation 1989.
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* All Rights reserved.
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*
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*****************************************************************************
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*
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* Program Description: Public Header for Bitmap Utilities
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*
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* Dependencies: misc.h
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*
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\***************************************************************************/
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/***********************************************************************
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*
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*
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* Data types
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*
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*
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***********************************************************************/
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// Bitmap object, as it appears in an FCP
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typedef struct {
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BOOL16 fInline; // TRUE if data is in line
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INT16 cBitmap; /* Bitmap number, if data is not inline.
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* If data is inline, it will come here,
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* so this structure should be treated as
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* variable length. */
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} OBM, * QOBM;
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// Handle to bitmap access information
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typedef HANDLE HBMA;
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/*******************************************************************
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*
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* Winlayer Function Calls
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*
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******************************************************************/
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typedef HANDLE HBMH;
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// This macro returns a pointer to byte cb after pointer qx.
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#define QFromQCb(qx, cb) ((LPVOID) (((PBYTE) qx) + cb))
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/* This macro returns the size of a bitmap header. Note that
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* it only works if the bitmap is not a metafile. */
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#define LcbSizeQbmh(qbmh) (int) (sizeof(BMH) + \
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sizeof(RGBQUAD) * ((qbmh)->w.dib.biClrUsed - 2))
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/*
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* This macro converts the given count of bits to a count of bytes,
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* aligned to the next largest longword boundary.
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*/
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#define LAlignLong(cbit) (int)(((cbit) + 31) >> 3)
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// Return values of HbmhReadFid (other than valid hbmh's)
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#define hbmhOOM ((HBMH) NULL)
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#define hbmhShedMrbc ((HBMH) -1)
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#define hbmhInvalid ((HBMH) -2)
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// Bitmap formats:
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#define bmWbitmap 5
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#define bmDIB 6
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// This was 7, but now we compress metafiles so the disk layout has changed.
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// Bump this number to 8 so use of old .hlp is diagnosed:
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#define bmWmetafile 8
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/* NOTE: Format numbers 1-4 were used for formats that are
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* no longer compatible.
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*/
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const int CB_COREINFO = 40; // Size of BITMAPCOREINFO struct
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const int CB_OLD_COREINFO = 12; // Old size of BITMAPCOREINFO struct
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// Default aspect ratios, defined in bmio.c:
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extern int cxAspectDefault;
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extern int cyAspectDefault;
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const int CX_DEFAULT_ASPECT = 96;
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const int CY_DEFAULT_ASPECT = 96;
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