png_get_bKGD 176 contrib/gregbook/readpng.c png_get_bKGD(png_ptr, info_ptr, &pBackground); png_get_bKGD 272 contrib/gregbook/readpng2.c png_get_bKGD(png_ptr, info_ptr, &pBackground); png_get_bKGD 199 contrib/visupng/PngFile.c if (png_get_bKGD(png_ptr, info_ptr, &pBackground)) png_get_bKGD 420 example.c if (png_get_bKGD(png_ptr, info_ptr, &image_background)) png_get_bKGD 2082 png.h PNG_EXPORT(131, png_uint_32, png_get_bKGD, (png_const_structrp png_ptr, png_get_bKGD 1159 pngtest.c if (png_get_bKGD(read_ptr, read_info_ptr, &background))