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add some wxIMAGE_OPTION_PNG_xxx options to wxImage and wxPNGHandler to allow the user to set the desired compression level (closes #10372)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58103 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2009-01-14 17:54:38 +00:00
parent 09ddabf738
commit d19ce8c491
4 changed files with 97 additions and 15 deletions
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5
include/wx/imagpng.h
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@@ -22,6 +22,11 @@
#define wxIMAGE_OPTION_PNG_FORMAT wxT("PngFormat")
#define wxIMAGE_OPTION_PNG_BITDEPTH wxT("PngBitDepth")
#define wxIMAGE_OPTION_PNG_FILTER wxT("PngF")
#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxT("PngZL")
#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxT("PngZM")
#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxT("PngZS")
#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
enum
{