README.txt
1Microsoft Developer Studio Build File, Format Version 6.00 for VisualPng
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3
4Copyright 2000, Willem van Schaik.
5
6This code is released under the libpng license.
7For conditions of distribution and use, see the disclaimer
8and license in png.h
9
10As a PNG .dll demo VisualPng is finished. More features would only hinder
11the program's objective. However, further extensions (like support for other
12graphics formats) are in development. To get these, or for pre-compiled
13binaries, go to "http://www.schaik.com/png/visualpng.html".
14
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16
17Assumes that
18
19 libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
20 zlib DLLs and LIBs are in ..\..\projects\msvc\win32\zlib
21 libpng header files are in ..\..\..\libpng
22 zlib header files are in ..\..\..\zlib
23 the pngsuite images are in ..\pngsuite
24
25To build:
26
271) On the main menu Select "Build|Set Active configuration".
28 Choose the configuration that corresponds to the library you want to test.
29 This library must have been built using the libpng MS project located in
30 the "..\..\mscv" subdirectory.
31
322) Select "Build|Clean"
33
343) Select "Build|Rebuild All"
35
364) After compiling and linking VisualPng will be started to view an image
37 from the PngSuite directory. Press Ctrl-N (and Ctrl-V) for other images.
38
39
40To install:
41
42When distributing VisualPng (or a further development) the following options
43are available:
44
451) Build the program with the configuration "Win32 LIB" and you only need to
46 include the executable from the ./lib directory in your distribution.
47
482) Build the program with the configuration "Win32 DLL" and you need to put
49 in your distribution the executable from the ./dll directory and the dll's
50 libpng1.dll, zlib.dll and msvcrt.dll. These need to be in the user's PATH.
51
52
53Willem van Schaik
54Calgary, June 6th 2000
55
56P.S. VisualPng was written based on preliminary work of:
57
58 - Simon-Pierre Cadieux
59 - Glenn Randers-Pehrson
60 - Greg Roelofs
61
62
