LaVolpe 32bpp DIB Suite [16Feb09
Updatd to fix 2 logic errors. Enclosed is a suite of classes that allow you to work strictly with 32bpp DIBs, including recognizing transparency/alpha channels in gifs, icons, pngs, tga & bitmaps. There are a bunch of "nice to have" routines and maybe an eye-opener or two for some of you. The classes are heavily commented. 18Feb08. Added text support & tiling. 9Mar08: Added TGA read/write, save as JPG, added Paul Caton's revised CDECL thunks for safer zlib usage, updated sample form. Review Change History in the RTF file for important notes & overview of class functions/properties. Most recent changes: Manually parsing grayscale PNGs can fail to correctly parse transparency, and the icon parser could fail to recognize some transparency in the icon mask.
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