class PNG::Chunk

• PNG::Chunk
• Reference
• Object

Defined in:

png/chunk.cr

Constructors

• .new(chunk_type : String, io : IO::Sized)

Class Method Summary

• .read(io : IO, &)
• .write(chunk_type : String, io : IO, data : Bytes)

  Write a chunk to the PNG stream Each chunk consists of - Length of data (UInt32) - Chunk type (String 4 chars) - Data (Bytes) - CRC32 chucksum (4 bytes)

• .write(chunk_type : String, io : IO, size : UInt32, &block : IO -> Nil)

  Write a chunk to the PNG stream Each chunk consists of - Length of data (UInt32) - Chunk type (String 4 chars) - Data (Bytes) - CRC32 chucksum (4 bytes)

• .write(chunk_type : String, io : IO, &block : IO -> Nil)

  Write a chunk to the PNG stream Each chunk consists of - Length of data (UInt32) - Chunk type (String 4 chars) - Data (Bytes) - CRC32 chucksum (4 bytes)

Instance Method Summary

• #write

Constructor Detail

Class Method Detail

Instance Method Detail