131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
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// LoadImage.c
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//
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// routines to load and decomress a graphics file using a MS Office
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// graphic import filter.
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//
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// writen for Plus! 05/24/95
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// ToddLa
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//
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// Copyright (c) 1995-1998 Microsoft Corporation. All rights reserved.
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#ifdef __cplusplus
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extern "C" { /* Assume C declarations for C++ */
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#endif /* __cplusplus */
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typedef struct
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{
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LPBITMAPINFOHEADER pBitmapInfoHeader;
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HMETAFILE hMetaFile;
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} BITMAP_AND_METAFILE_COMBO;
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// LoadImageFromFile(LPCTSTR szFileName, int width, int height, int bpp, int dither);
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//
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// load a graphic file decompess it (iff needed) and return a DIBSection
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//
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// szFileName - the file name, can be a windows bitmap
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// or any format supported by a installed
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// graphic import filter.
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//
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// width, height - requested width,height in pixels
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// pass zero for no stretching
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//
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// bpp - requested bit depth
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//
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// 0 use the bit depth of the image
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// -1 use best bit depth for current display
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// 8 use 8bpp
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// 16 use 16bpp 555
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// 24 use 24bpp
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// 32 use 32bpp
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// 555 use 16bpp 555
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// 565 use 16bpp 565
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//
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// if the requested bit depth is 8bpp a palette
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// will be used in this order.
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//
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// if the image file is <= 8bpp its
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// color table will be used.
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//
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// if a file of the same name, with
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// a .pal extension exists this will be
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// used as the palette.
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//
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// otherwise the halftone palette will be used.
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//
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// dither 0 = none.
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// 1 = dither to custon palette.
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// 2 = dither to standard palette.
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// 3 = halftone to standard palette.
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//
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// returns
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//
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// DIBSection bitmap handle
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//
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#define DITHER_NONE 0
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#define DITHER_CUSTOM 1
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#define DITHER_STANDARD 2
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#define DITHER_HALFTONE 3
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#define DITHER_CUSTOM_HYBRID 4
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#define DITHER_STANDARD_HYBRID 5
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HBITMAP LoadImageFromFile(LPCTSTR szFileName, BITMAP_AND_METAFILE_COMBO * pbam, int width, int height, int bpp, int dither);
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// LoadDIBFromFile
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//
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// load a image file using a image import filter.
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HRESULT LoadDIBFromFile(IN LPCTSTR szFileName, IN BITMAP_AND_METAFILE_COMBO * pBitmapAndMetaFile);
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void FreeDIB(BITMAP_AND_METAFILE_COMBO bam);
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//
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// LoadPaletteFromFile
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//
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// load a MS .PAL file. as a array of RGBQUADs
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//
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// if the palette file is invalid or does not
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// exists the halftone colors are returned.
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// if hdcNearest is not NULL the colors are adjusted w/GetNearestColor
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//
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DWORD LoadPaletteFromFile(LPCTSTR szFile, LPDWORD rgb, HDC hdcNearest);
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//
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// GetFilterInfo
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//
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BOOL GetFilterInfo(int i, LPTSTR szName, UINT cbName, LPTSTR szExt, UINT cbExt, LPTSTR szHandler, UINT cbHandler);
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//
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// SaveImageToFile
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//
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// save a DIBSection to a .BMP file.
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//
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// if szTitle is !=NULL it will be written to the end of the
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// bitmap so GetImageTitle() can read it.
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//
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BOOL SaveImageToFile(HBITMAP hbm, LPCTSTR szFile, LPCTSTR szTitle);
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//
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// GetImageTitle
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//
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// retrives the title writen to a bitmap file by SaveImageToFile
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//
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DWORD GetImageTitle(LPCTSTR szFile, LPTSTR szTitle, UINT cb);
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//
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// CacheLoadImageFromFile
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// CacheDeleteBitmap
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//
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HBITMAP CacheLoadImageFromFile(LPCTSTR szFileName, int width, int height, int bpp, int dither);
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void CacheDeleteBitmap(HBITMAP hbm);
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// FindExtension
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//
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// returns a pointer to the extension of a file.
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//
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LPCTSTR FindExtension(LPCTSTR pszPath);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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