Compile and use libpng and zlib in Visual Studio

Libpng is used for image processing, and zlib is used for compression. The two are closely related. libpng depends on zlib.

 

Compilation Library:

1. First download the libpng-1.5.12.tar.gz (http://sourceforge.net/projects/libpng/files/libpng15/1.5.12/) and libz (http://zlib.net/zlib-1.2.7.tar.gz), extract LibPNG, such as c: \ workspace \ libpng-1.5.12 \.

2. Decompress libz and rename zlib to the libpng directory of the same level, such as c: \ workspace \ zlib.

3. Enter libpng \ projects \ visualc71 \ and open the project file with Visual Studio. The solution has three sub-projects: LibPNG, pngtest, and zlib. Directly compile the file. The zlib1d. dll, libpng15d. dll, LibPNG. Lib, zlib, and other library files will be generated under the win32_dll_debug directory and win32_dll_debug \ zlib directory.

 

For projects that need to use these two databases, three things need to be done:

1. Project property-> Configuration properties-> C/C ++/General-> additional include directories Add the directories containing header files such as PNG. h

2. Add zlib. lib and LibPNG. lib to linker-> input-> additional dependencies.

3. In configuration properties-> VC ++ directories-> library directories, add the directories zlib. lib and LibPNG. Lib.

 

 

 

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