Drawing transparent bitmaps using CImage

Troels Knakkergaard

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17 Sep 20017 min read

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Universal implementation of transparent drawing of bitmap files (BMP, JPEG, GIF, PNG). Based on the method described by Chris Becke and Raja Segar.

cimage.zip
- BIN
  - cimage.dll
  - demodll.exe
  - test.gif
- cimage.dsw
- CIMAGE
  - cimage.gif
  - cimage.html
  - demo.gif
  - imagedll.dsp
  - imagelib.dsp
  - INCLUDE
    - cimage.h
    - cimage.inl
  - JPEG
    - change.log
    - filelist.txt
    - JCAPIMIN.C
    - JCAPISTD.C
    - JCCOEFCT.C
    - JCCOLOR.C
    - JCDCTMGR.C
    - JCHUFF.C
    - JCHUFF.H
    - JCINIT.C
    - JCMAINCT.C
    - JCMARKER.C
    - JCMASTER.C
    - JCOMAPI.C
    - JCONFIG.H
    - jconfig.vc
    - JCPARAM.C
    - JCPHUFF.C
    - JCPREPCT.C
    - JCSAMPLE.C
    - JCTRANS.C
    - JDAPIMIN.C
    - JDAPISTD.C
    - JDATADST.C
    - JDATASRC.C
    - JDCOEFCT.C
    - JDCOLOR.C
    - JDCT.H
    - JDDCTMGR.C
    - JDHUFF.C
    - JDHUFF.H
    - JDINPUT.C
    - JDMAINCT.C
    - JDMARKER.C
    - JDMASTER.C
    - JDMERGE.C
    - JDPHUFF.C
    - JDPOSTCT.C
    - JDSAMPLE.C
    - JDTRANS.C
    - JERROR.C
    - JERROR.H
    - JFDCTFLT.C
    - JFDCTFST.C
    - JFDCTINT.C
    - JIDCTFLT.C
    - JIDCTFST.C
    - JIDCTINT.C
    - JIDCTRED.C
    - JINCLUDE.H
    - JMEMMGR.C
    - JMEMNOBS.C
    - JMEMSYS.H
    - Jmorecfg.h
    - JPEGINT.H
    - JPEGLIB.H
    - JQUANT1.C
    - JQUANT2.C
    - JUTILS.C
    - JVERSION.H
    - Readme.txt
  - PNG
    - Announce.txt
    - Changes.txt
    - example.c
    - libpng.txt
    - License.txt
    - png.c
    - png.h
    - png.mak
    - pngconf.h
    - pngerror.c
    - pnggccrd.c
    - pngget.c
    - pngmem.c
    - pngpread.c
    - pngread.c
    - pngrio.c
    - pngrtran.c
    - pngrutil.c
    - pngset.c
    - pngtest.c
    - pngtrans.c
    - pngvcrd.c
    - pngwio.c
    - pngwrite.c
    - pngwtran.c
    - pngwutil.c
    - Readme.txt
  - project.gif
  - SRC
    - cimage.cpp
    - cimage.def
    - cimage.rc
    - cimage_d.def
    - imabmp.cpp
    - imabmp.h
    - imagif.cpp
    - imagif.h
    - imaicon.cpp
    - imaicon.h
    - imajpeg.cpp
    - imajpeg.h
    - imapng.cpp
    - imapng.h
    - imatiff.cpp
    - imatiff.h
    - iterator.h
    - RES
      - cimage.rc2
    - resource.h
    - trans.c
  - TIFF
    - fax3sm_winnt.c
    - libtiff.def
    - t4.h
    - tif_acorn.c
    - tif_apple.c
    - tif_atari.c
    - tif_aux.c
    - tif_c.c
    - tif_close.c
    - tif_codec.c
    - tif_compress.c
    - tif_dir.c
    - tif_dir.h
    - tif_dirinfo.c
    - tif_dirread.c
    - tif_dirwrite.c
    - tif_dumpmode.c
    - tif_error.c
    - tif_fax3.c
    - tif_fax3.h
    - tif_flush.c
    - tif_getimage.c
    - tif_jpeg.c
    - tif_luv.c
    - tif_lzw.c
    - tif_msdos.c
    - tif_next.c
    - tif_open.c
    - tif_packbits.c
    - tif_pixarlog.c
    - tif_predict.c
    - tif_predict.h
    - tif_print.c
    - tif_read.c
    - tif_strip.c
    - tif_swab.c
    - tif_thunder.c
    - tif_tile.c
    - tif_unix.c
    - tif_version.c
    - tif_vms.c
    - tif_warning.c
    - tif_win3.c
    - tif_win32.c
    - tif_write.c
    - tif_zip.c
    - tiff.h
    - tiffcomp.h
    - tiffconf.h
    - tiffio.h
    - tiffiop.h
    - uvcode.h
- DEMO
  - demo.clw
  - demo.dsp
  - SRC
    - app.cpp
    - app.h
    - demo.rc
    - DlgRotate.cpp
    - frame.cpp
    - frame.h
    - helpers.cpp
    - helpers.h
    - imgdoc.cpp
    - imgdoc.h
    - imgframe.cpp
    - imgframe.h
    - imgobj.cpp
    - imgobj.h
    - imgobj.inl
    - imgview.cpp
    - imgview.h
    - mdiface.cpp
    - mdiface.h
    - memdc.h
    - RES
      - app.ico
      - bg.jpg
      - demo.rc2
      - doc.ico
      - Explorer.ico
      - mdiface.bmp
      - testbmp.bmp
      - Toolbar.bmp
      - trans.gif
      - trans.ico
      - us.png
    - resource.h
    - StdAfx.cpp
    - StdAfx.h
- ZLIB
  - ADLER32.C
  - algorithm.txt
  - ChangeLog.txt
  - COMPRESS.C
  - CRC32.C
  - DEFLATE.C
  - DEFLATE.H
  - EXAMPLE.C
  - Faq.txt
  - GZIO.C
  - INFBLOCK.C
  - INFBLOCK.H
  - INFCODES.C
  - INFCODES.H
  - INFFAST.C
  - INFFAST.H
  - inffixed.h
  - INFLATE.C
  - INFTREES.C
  - INFTREES.H
  - INFUTIL.C
  - INFUTIL.H
  - maketree.c
  - MINIGZIP.C
  - Readme.txt
  - TREES.C
  - trees.h
  - UNCOMPR.C
  - ZCONF.H
  - ZLIB.DEF
  - zlib.dsp
  - zlib.dsw
  - ZLIB.H
  - zlib.mak
  - ZLIB.RC
  - ZUTIL.C
  - ZUTIL.H

/* infcodes.h -- header to use infcodes.c
 * Copyright (C) 1995-1998 Mark Adler
 * For conditions of distribution and use, see copyright notice in zlib.h 
 */

/* WARNING: this file should *not* be used by applications. It is
   part of the implementation of the compression library and is
   subject to change. Applications should only use zlib.h.
 */

struct inflate_codes_state;
typedef struct inflate_codes_state FAR inflate_codes_statef;

extern inflate_codes_statef *inflate_codes_new OF((
    uInt, uInt,
    inflate_huft *, inflate_huft *,
    z_streamp ));

extern int inflate_codes OF((
    inflate_blocks_statef *,
    z_streamp ,
    int));

extern void inflate_codes_free OF((
    inflate_codes_statef *,
    z_streamp ));

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Written By

Troels Knakkergaard

Denmark

This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Drawing transparent bitmaps using CImage

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